up 2.1.5

Add RealPingEvent sealed class and refactor real-ping flow to use event-driven communication. RealPingWorkerService now emits Progress/Result/Finish events instead of direct callbacks/MessageUtil calls. CoreTestService reorganized into handlers (handleMeasureStart/handleMeasureCancel/handleWorkerEvent) to process events, update notifications, persist delays via MmkvManager, and notify UI. MainViewModel adjusted to read the result content as a string when handling success messages. Overall change decouples worker logic from service responsibilities and simplifies progress/result handling.

V2rayNG/app/build.gradle.kts

@@ -12,8 +12,8 @@ android {
         applicationId = "com.v2ray.ang"
         minSdk = 24
         targetSdk = 36
-        versionCode = 724
-        versionName = "2.1.4"
+        versionCode = 725
+        versionName = "2.1.5"
         multiDexEnabled = true
 
         val abiFilterList = (properties["ABI_FILTERS"] as? String)?.split(';')

V2rayNG/app/src/main/AndroidManifest.xml

@@ -82,6 +82,10 @@
             android:name=".ui.ServerGroupActivity"
             android:exported="false"
             android:windowSoftInputMode="stateUnchanged" />
+        <activity
+            android:name=".ui.ServerProxyChainActivity"
+            android:exported="false"
+            android:windowSoftInputMode="stateUnchanged" />
         <activity
             android:name=".ui.SettingsActivity"
             android:exported="false" />
@@ -168,7 +172,7 @@
             android:exported="false" />
 
         <service
-            android:name=".service.V2RayVpnService"
+            android:name=".service.CoreVpnService"
             android:enabled="true"
             android:exported="false"
             android:foregroundServiceType="specialUse"
@@ -188,7 +192,7 @@
         </service>
 
         <service
-            android:name=".service.V2RayProxyOnlyService"
+            android:name=".service.CoreProxyOnlyService"
             android:exported="false"
             android:foregroundServiceType="specialUse"
             android:label="@string/app_name"
@@ -199,9 +203,14 @@
         </service>
 
         <service
-            android:name=".service.V2RayTestService"
+            android:name=".service.CoreTestService"
             android:exported="false"
-            android:process=":RunSoLibV2RayDaemon" />
+            android:foregroundServiceType="specialUse"
+            android:process=":RunSoLibV2RayDaemon">
+            <property
+                android:name="android.app.PROPERTY_SPECIAL_USE_FGS_SUBTYPE"
+                android:value="test" />
+        </service>
 
         <receiver
             android:name=".receiver.WidgetProvider"

V2rayNG/app/src/main/java/com/v2ray/ang/AppConfig.kt

@@ -78,6 +78,7 @@ object AppConfig {
     const val PREF_HEV_TUNNEL_RW_TIMEOUT = "pref_hev_tunnel_rw_timeout_v2"
     const val PREF_AUTO_REMOVE_INVALID_AFTER_TEST = "pref_auto_remove_invalid_after_test"
     const val PREF_AUTO_SORT_AFTER_TEST = "pref_auto_sort_after_test"
+    const val PREF_REAL_PING_CONCURRENCY = "pref_real_ping_concurrency"
 
     /** Cache keys. */
     const val CACHE_SUBSCRIPTION_ID = "cache_subscription_id"
@@ -164,17 +165,15 @@ object AppConfig {
     const val MSG_STATE_RESTART = 5
     const val MSG_MEASURE_DELAY = 6
     const val MSG_MEASURE_DELAY_SUCCESS = 61
-    const val MSG_MEASURE_CONFIG = 7
-    const val MSG_MEASURE_CONFIG_SUCCESS = 71
-    const val MSG_MEASURE_CONFIG_CANCEL = 72
+    const val MSG_MEASURE_CONFIG_START = 7
+    const val MSG_MEASURE_CONFIG_CANCEL = 71
+    const val MSG_MEASURE_CONFIG_SUCCESS = 72
     const val MSG_MEASURE_CONFIG_NOTIFY = 73
     const val MSG_MEASURE_CONFIG_FINISH = 74
 
     /** Notification channel IDs and names. */
     const val RAY_NG_CHANNEL_ID = "RAY_NG_M_CH_ID"
     const val RAY_NG_CHANNEL_NAME = "v2rayNG Background Service"
-    const val SUBSCRIPTION_UPDATE_CHANNEL = "subscription_update_channel"
-    const val SUBSCRIPTION_UPDATE_CHANNEL_NAME = "Subscription Update Service"
 
     /** Protocols Scheme **/
     const val VMESS = "vmess://"

V2rayNG/app/src/main/java/com/v2ray/ang/core/CoreConfigContextBuilder.kt

@@ -0,0 +1,197 @@
+package com.v2ray.ang.core
+
+import android.content.Context
+import com.v2ray.ang.AppConfig
+import com.v2ray.ang.dto.CoreConfigContext
+import com.v2ray.ang.dto.ProfileItem
+import com.v2ray.ang.enums.CoreResolvedType
+import com.v2ray.ang.enums.EConfigType
+import com.v2ray.ang.extension.isNotNullEmpty
+import com.v2ray.ang.handler.MmkvManager
+import com.v2ray.ang.handler.SettingsManager
+import com.v2ray.ang.util.LogUtil
+import com.v2ray.ang.util.Utils
+
+/**
+ * Builds [com.v2ray.ang.dto.CoreConfigContext] from the selected profile.
+ * Keeps parsing and resolution logic out of [CoreConfigManager].
+ */
+object CoreConfigContextBuilder {
+
+    /** Loads profile by guid and returns a resolved runtime context. */
+    fun build(context: Context, guid: String): CoreConfigContext? {
+        val config = MmkvManager.decodeServerConfig(guid) ?: return null
+        if (config.configType == EConfigType.CUSTOM) {
+            return CoreConfigContext(
+                context = context,
+                guid = guid,
+                selectedProfile = config,
+                resolvedProfiles = listOf(config),
+                resolvedType = CoreResolvedType.CUSTOM,
+            )
+        }
+
+        // Pre-resolve custom outbound profiles from routing rulesets
+        val customOutbounds = resolveCustomOutbounds()
+
+        // Determine resolved profiles and type based on config type
+        val (resolvedProfiles, resolvedType) = when (config.configType) {
+            EConfigType.POLICYGROUP -> {
+                val profiles = resolvePolicyGroupProfiles(config)
+                Pair(profiles, CoreResolvedType.POLICYGROUP)
+            }
+
+            EConfigType.PROXYCHAIN -> {
+                val profiles = resolveProxyChainProfiles(config)
+                Pair(profiles, CoreResolvedType.PROXYCHAIN)
+            }
+
+            else -> {
+                val chainProfiles = resolveProxyChainProfilesFromGroup(config)
+                val type = if (chainProfiles.size <= 1) CoreResolvedType.NORMAL else CoreResolvedType.PROXYCHAIN
+                Pair(chainProfiles, type)
+            }
+        }
+
+        // Create context with common fields
+        return CoreConfigContext(
+            context = context,
+            guid = guid,
+            selectedProfile = config,
+            resolvedProfiles = resolvedProfiles,
+            resolvedType = resolvedType,
+            customOutboundProfiles = customOutbounds,
+        )
+    }
+
+    /** Resolves policy-group members with the same filters as runtime build. */
+    private fun resolvePolicyGroupProfiles(config: ProfileItem): List<ProfileItem> {
+        try {
+            val serverList = MmkvManager.decodeAllServerList()
+            return serverList
+                .asSequence()
+                .mapNotNull { id -> MmkvManager.decodeServerConfig(id) }
+                .filter { profile ->
+                    val subscriptionId = config.policyGroupSubscriptionId
+                    if (subscriptionId.isNullOrBlank()) {
+                        true
+                    } else {
+                        profile.subscriptionId == subscriptionId
+                    }
+                }
+                .filter { profile ->
+                    val filter = config.policyGroupFilter
+                    if (filter.isNullOrBlank()) {
+                        true
+                    } else {
+                        try {
+                            Regex(filter).containsMatchIn(profile.remarks)
+                        } catch (_: Exception) {
+                            profile.remarks.contains(filter)
+                        }
+                    }
+                }
+                .filter { it.server.isNotNullEmpty() }
+                .filter { !Utils.isPureIpAddress(it.server!!) || Utils.isValidUrl(it.server!!) }
+                .filter { it.configType != EConfigType.CUSTOM }
+                .filter { it.configType != EConfigType.POLICYGROUP }
+                .filter { it.configType != EConfigType.PROXYCHAIN }
+                .toList()
+        }
+        catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to resolve policy group profiles for config '${config.remarks}'", e)
+            return listOf(config)
+        }
+    }
+
+    /** Resolves proxy-chain members with the same filters as runtime build. */
+    private fun resolveProxyChainProfiles(config: ProfileItem): List<ProfileItem> {
+        if (config.proxyChainProfiles.isNullOrBlank()) {
+            return listOf(config)
+        }
+
+        try {
+            return config.proxyChainProfiles.orEmpty().split(",")
+                .asSequence()
+                .mapNotNull { remark -> SettingsManager.getServerViaRemarks(remark) }
+                .filter { it.server.isNotNullEmpty() }
+                .filter { !Utils.isPureIpAddress(it.server!!) || Utils.isValidUrl(it.server!!) }
+                .filter { it.configType != EConfigType.CUSTOM }
+                .filter { it.configType != EConfigType.POLICYGROUP }
+                .filter { it.configType != EConfigType.PROXYCHAIN }
+                .toList()
+        }
+        catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to resolve proxy chain profiles for config '${config.remarks}'", e)
+            return listOf(config)
+        }
+    }
+
+    /**
+     * Resolves chain nodes in fixed order: next -> current -> prev.
+     * If chain cannot be built, caller treats result as normal mode.
+     */
+    private fun resolveProxyChainProfilesFromGroup(config: ProfileItem): List<ProfileItem> {
+        if (MmkvManager.decodeSettingsBool(AppConfig.PREF_FRAGMENT_ENABLED, false) == true) {
+            return listOf(config)
+        }
+        if (config.subscriptionId.isEmpty()) {
+            return listOf(config)
+        }
+
+        try {
+            val subItem = MmkvManager.decodeSubscription(config.subscriptionId) ?: return listOf(config)
+            val resolved = mutableListOf<ProfileItem>()
+
+            // Keep the same practical chain order as current runtime assembly:
+            // next -> current -> prev
+            SettingsManager.getServerViaRemarks(subItem.nextProfile)?.let { resolved.add(it) }
+            resolved.add(config)
+            SettingsManager.getServerViaRemarks(subItem.prevProfile)?.let { resolved.add(it) }
+
+            return resolved
+        } catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to resolve proxy chain profiles from group for config '${config.remarks}'", e)
+            return listOf(config)
+        }
+    }
+
+    /**
+     * Resolves custom outbound profiles from routing rulesets.
+     * Scans rulesets for non-builtin outbound tags and looks up matching profiles by remarks.
+     * Returns a map of tag -> ProfileItem for independent processing.
+     */
+    private fun resolveCustomOutbounds(): Map<String, ProfileItem> {
+        val customMap = mutableMapOf<String, ProfileItem>()
+        val rulesetItems = MmkvManager.decodeRoutingRulesets() ?: return customMap
+
+        try {
+            val processedTags = mutableSetOf<String>()
+
+            rulesetItems
+                .filter { it.enabled }
+                .mapNotNull { it.outboundTag.takeIf { tag -> tag.isNotBlank() } }
+                .filter { tag -> tag !in AppConfig.BUILTIN_OUTBOUND_TAGS }
+                .distinct()
+                .forEach { tag ->
+                    if (tag in processedTags) return@forEach
+                    processedTags.add(tag)
+
+                    try {
+                        val profile = SettingsManager.getServerViaRemarks(tag) ?: run {
+                            return@forEach
+                        }
+
+                        customMap[tag] = profile
+                    } catch (e: Exception) {
+                        LogUtil.e(AppConfig.TAG, "Failed to resolve custom outbound for tag '$tag', skipping", e)
+                    }
+                }
+        } catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to resolve custom outbound profiles", e)
+        }
+
+        return customMap
+    }
+}
+

V2rayNG/app/src/main/java/com/v2ray/ang/core/CoreConfigManager.kt

@@ -0,0 +1,991 @@
+package com.v2ray.ang.core
+
+import android.content.Context
+import android.text.TextUtils
+import com.google.gson.JsonArray
+import com.v2ray.ang.AppConfig
+import com.v2ray.ang.dto.ConfigResult
+import com.v2ray.ang.dto.CoreConfigContext
+import com.v2ray.ang.dto.ProfileItem
+import com.v2ray.ang.dto.RulesetItem
+import com.v2ray.ang.dto.V2rayConfig
+import com.v2ray.ang.enums.CoreResolvedType
+import com.v2ray.ang.enums.EConfigType
+import com.v2ray.ang.extension.isNotNullEmpty
+import com.v2ray.ang.handler.MmkvManager
+import com.v2ray.ang.handler.SettingsManager
+import com.v2ray.ang.util.HttpUtil
+import com.v2ray.ang.util.JsonUtil
+import com.v2ray.ang.util.LogUtil
+import com.v2ray.ang.util.PackageUidResolver
+import com.v2ray.ang.util.Utils
+
+object CoreConfigManager {
+    private var initConfigCache: String? = null
+    private var initConfigCacheWithTun: String? = null
+
+    //region get config function
+
+    /**
+     * Builds normal runtime config JSON for the selected profile.
+     *
+     * @param context The context of the caller.
+     * @param guid The unique identifier for the V2ray configuration.
+     * @return A ConfigResult object containing the configuration details or indicating failure.
+     */
+    fun getV2rayConfig(context: Context, guid: String): ConfigResult {
+        try {
+            val configContext = CoreConfigContextBuilder.build(context, guid) ?: return ConfigResult(false)
+            if (configContext.resolvedType == CoreResolvedType.CUSTOM) {
+                return getV2rayCustomConfig(configContext)
+            }
+            val v2rayConfig = when (configContext.resolvedType) {
+                CoreResolvedType.POLICYGROUP -> buildGroupConfig(configContext)
+                CoreResolvedType.PROXYCHAIN -> buildProxyChainConfig(configContext)
+                CoreResolvedType.NORMAL -> buildNormalConfig(configContext)
+                CoreResolvedType.CUSTOM -> null
+            } ?: return ConfigResult(false)
+
+            return toConfigResult(configContext, v2rayConfig)
+        } catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to get V2ray config", e)
+            return ConfigResult(false)
+        }
+    }
+
+    /**
+     * Builds speedtest config for the selected profile.
+     *
+     * It reuses the same build flow as normal config, then removes
+     * unnecessary sections for delay testing.
+     *
+     * @param context The context of the caller.
+     * @param guid The unique identifier for the V2ray configuration.
+     * @return A ConfigResult object containing the configuration details or indicating failure.
+     */
+    fun getV2rayConfig4Speedtest(context: Context, guid: String): ConfigResult {
+        try {
+            val configContext = CoreConfigContextBuilder.build(context, guid) ?: return ConfigResult(false)
+            if (configContext.resolvedType == CoreResolvedType.CUSTOM) {
+                return getV2rayCustomConfig(configContext)
+            }
+            val v2rayConfig = when (configContext.resolvedType) {
+                CoreResolvedType.POLICYGROUP -> buildGroupConfig(configContext)
+                CoreResolvedType.PROXYCHAIN -> buildProxyChainConfig(configContext)
+                CoreResolvedType.NORMAL -> buildNormalConfig(configContext)
+                CoreResolvedType.CUSTOM -> null
+            } ?: return ConfigResult(false)
+
+            postProcessForSpeedtest(v2rayConfig)
+
+            return toConfigResult(configContext, v2rayConfig)
+        } catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to get V2ray config for speedtest", e)
+            return ConfigResult(false)
+        }
+    }
+
+    /**
+     * Builds config result for CUSTOM profiles.
+     */
+    private fun getV2rayCustomConfig(configContext: CoreConfigContext): ConfigResult {
+        val context = configContext.context
+        val raw = MmkvManager.decodeServerRaw(configContext.guid) ?: return ConfigResult(false)
+        val result = ConfigResult(true, configContext.guid, raw)
+        if (!needTun()) {
+            return result
+        }
+
+        val json = JsonUtil.parseString(raw)?.takeIf { it.isJsonObject }?.asJsonObject ?: return result
+
+        // Check whether package names need to be replaced with UIDs
+        if (SettingsManager.canUseProcessRouting()) {
+            val rulesJson = json.get("routing")?.takeIf { it.isJsonObject }?.asJsonObject
+                ?.get("rules")?.takeIf { it.isJsonArray }?.asJsonArray
+                ?: JsonArray()
+
+            for (elem in rulesJson) {
+                val rule = elem.takeIf { it.isJsonObject }?.asJsonObject ?: continue
+                val process = rule.get("process")?.takeIf { it.isJsonArray }?.asJsonArray ?: continue
+                val packages = process.mapNotNull {
+                    it.takeIf { it.isJsonPrimitive && it.asJsonPrimitive.isString }?.asString
+                }.takeIf { it.isNotEmpty() } ?: continue
+                val uids = PackageUidResolver.packageNamesToUids(context, packages).takeIf { it.isNotEmpty() } ?: continue
+
+                rule.add("process", JsonArray().apply { uids.forEach { add(it) } })
+            }
+        }
+
+        // check if tun inbound exists
+        val inboundsJson = json.get("inbounds")?.takeIf { it.isJsonArray }?.asJsonArray
+            ?: JsonArray().also { json.add("inbounds", it) }
+        val tunNotExists = inboundsJson.none { elem ->
+            elem.isJsonObject && elem.asJsonObject.get("protocol")
+                ?.takeIf { it.isJsonPrimitive && it.asJsonPrimitive.isString }
+                ?.asString == "tun"
+        }
+
+        if (tunNotExists) {
+            // add tun inbound from template
+            initV2rayConfig(configContext)?.let { templateConfig ->
+                templateConfig.inbounds.firstOrNull { it.tag == "tun" }?.let { inboundTun ->
+                    inboundTun.settings?.mtu = SettingsManager.getVpnMtu()
+                    inboundsJson.add(JsonUtil.parseString(JsonUtil.toJson(inboundTun)))
+                }
+            }
+        }
+
+        return JsonUtil.toJsonPretty(json)?.let { ConfigResult(true, configContext.guid, it) } ?: result
+    }
+
+    /** Builds full config for policy-group mode. */
+    private fun buildGroupConfig(configContext: CoreConfigContext): V2rayConfig? {
+        val config = configContext.selectedProfile
+        val validConfigs = configContext.resolvedProfiles
+
+        if (validConfigs.isEmpty()) {
+            LogUtil.w(AppConfig.TAG, "All configs are invalid")
+            return null
+        }
+
+        val v2rayConfig = initV2rayConfig(configContext) ?: return null
+        v2rayConfig.log.loglevel = MmkvManager.decodeSettingsString(AppConfig.PREF_LOGLEVEL) ?: "warning"
+        v2rayConfig.remarks = config.remarks
+
+        getInbounds(v2rayConfig)
+
+        v2rayConfig.outbounds.removeAt(0)
+        val outboundsList = mutableListOf<V2rayConfig.OutboundBean>()
+        var index = 0
+        for (item in validConfigs) {
+            index++
+            val outbound = convertProfile2Outbound(item) ?: continue
+            outbound.tag = "proxy-$index-${item.remarks.trim()}"
+            outboundsList.add(outbound)
+        }
+        outboundsList.addAll(v2rayConfig.outbounds)
+        v2rayConfig.outbounds = ArrayList(outboundsList)
+
+        getRouting(configContext, v2rayConfig)
+        getFakeDns(v2rayConfig)
+        getDns(v2rayConfig)
+        getBalance(configContext, v2rayConfig)
+
+        if (MmkvManager.decodeSettingsBool(AppConfig.PREF_LOCAL_DNS_ENABLED)) {
+            getCustomLocalDns(v2rayConfig)
+        }
+        if (!MmkvManager.decodeSettingsBool(AppConfig.PREF_SPEED_ENABLED)) {
+            v2rayConfig.stats = null
+            v2rayConfig.policy = null
+        }
+
+        // Resolve and add to DNS Hosts
+        if (MmkvManager.decodeSettingsString(AppConfig.PREF_OUTBOUND_DOMAIN_RESOLVE_METHOD, "1") == "1") {
+            resolveOutboundDomainsToHosts(v2rayConfig)
+        }
+
+        return v2rayConfig
+    }
+
+    /**
+     * Builds full V2Ray config for proxy-chain mode.
+     *
+     * Uses resolvedProfiles as an ordered chain and links each hop
+     * with dialerProxy.
+     */
+    private fun buildProxyChainConfig(configContext: CoreConfigContext): V2rayConfig? {
+        val config = configContext.selectedProfile
+        val resolvedProfiles = configContext.resolvedProfiles
+
+        val v2rayConfig = initV2rayConfig(configContext) ?: return null
+        v2rayConfig.log.loglevel = MmkvManager.decodeSettingsString(AppConfig.PREF_LOGLEVEL) ?: "warning"
+        v2rayConfig.remarks = config.remarks
+
+        getInbounds(v2rayConfig)
+
+        // Build and link the whole chain directly from resolvedProfiles.
+        val chainOutbounds = resolvedProfiles.mapNotNull { profile ->
+            convertProfile2Outbound(profile)
+        }.toMutableList()
+        if (chainOutbounds.size < 2) {
+            LogUtil.w(AppConfig.TAG, "Proxy chain requires at least 2 valid profiles, but only ${chainOutbounds.size} found")
+            return null
+        }
+
+        chainOutbounds.forEachIndexed { index, outbound ->
+            outbound.tag = if (index == 0) AppConfig.TAG_PROXY else AppConfig.TAG_PROXY + index
+        }
+        for (index in 0 until chainOutbounds.size - 1) {
+            chainOutbounds[index].ensureSockopt().dialerProxy = chainOutbounds[index + 1].tag
+        }
+
+        // Keep built-in outbounds and place the chain before them.
+        val builtinOutbounds = if (v2rayConfig.outbounds.size > 1) {
+            v2rayConfig.outbounds.drop(1)
+        } else {
+            emptyList()
+        }
+        v2rayConfig.outbounds = ArrayList(chainOutbounds + builtinOutbounds)
+
+        getRouting(configContext, v2rayConfig)
+        getFakeDns(v2rayConfig)
+        getDns(v2rayConfig)
+
+        if (MmkvManager.decodeSettingsBool(AppConfig.PREF_LOCAL_DNS_ENABLED) == true) {
+            getCustomLocalDns(v2rayConfig)
+        }
+        if (MmkvManager.decodeSettingsBool(AppConfig.PREF_SPEED_ENABLED) != true) {
+            v2rayConfig.stats = null
+            v2rayConfig.policy = null
+        }
+
+        // Resolve and add to DNS Hosts
+        if (MmkvManager.decodeSettingsString(AppConfig.PREF_OUTBOUND_DOMAIN_RESOLVE_METHOD, "1") == "1") {
+            resolveOutboundDomainsToHosts(v2rayConfig)
+        }
+
+        return v2rayConfig
+    }
+
+    /** Builds full config for normal single-node mode. */
+    private fun buildNormalConfig(configContext: CoreConfigContext): V2rayConfig? {
+        val config = configContext.selectedProfile
+
+        val address = config.server ?: return null
+        if (!Utils.isPureIpAddress(address) && !Utils.isValidUrl(address)) {
+            LogUtil.w(AppConfig.TAG, "$address is an invalid ip or domain")
+            return null
+        }
+
+        val v2rayConfig = initV2rayConfig(configContext) ?: return null
+        v2rayConfig.log.loglevel = MmkvManager.decodeSettingsString(AppConfig.PREF_LOGLEVEL) ?: "warning"
+        v2rayConfig.remarks = config.remarks
+
+        getInbounds(v2rayConfig)
+        getOutbounds(configContext, v2rayConfig) ?: return null
+        getRouting(configContext, v2rayConfig)
+        getFakeDns(v2rayConfig)
+        getDns(v2rayConfig)
+
+        if (MmkvManager.decodeSettingsBool(AppConfig.PREF_LOCAL_DNS_ENABLED) == true) {
+            getCustomLocalDns(v2rayConfig)
+        }
+        if (MmkvManager.decodeSettingsBool(AppConfig.PREF_SPEED_ENABLED) != true) {
+            v2rayConfig.stats = null
+            v2rayConfig.policy = null
+        }
+
+        // Resolve and add to DNS Hosts
+        if (MmkvManager.decodeSettingsString(AppConfig.PREF_OUTBOUND_DOMAIN_RESOLVE_METHOD, "1") == "1") {
+            resolveOutboundDomainsToHosts(v2rayConfig)
+        }
+
+        return v2rayConfig
+    }
+
+    /**
+     * Removes non-essential sections for speedtest use.
+     */
+    private fun postProcessForSpeedtest(v2rayConfig: V2rayConfig) {
+        v2rayConfig.log.loglevel = MmkvManager.decodeSettingsString(AppConfig.PREF_LOGLEVEL) ?: "warning"
+        v2rayConfig.inbounds.clear()
+        v2rayConfig.routing.rules.clear()
+        v2rayConfig.dns = null
+        v2rayConfig.fakedns = null
+        v2rayConfig.stats = null
+        v2rayConfig.policy = null
+        v2rayConfig.outbounds.forEach { key -> key.mux = null }
+    }
+
+    /** Converts a built config object into a unified result payload. */
+    private fun toConfigResult(configContext: CoreConfigContext, v2rayConfig: V2rayConfig): ConfigResult {
+        return ConfigResult(
+            status = true,
+            guid = configContext.guid,
+            content = JsonUtil.toJsonPretty(v2rayConfig) ?: ""
+        )
+    }
+
+    /**
+     * Initializes V2ray configuration.
+     *
+     * This function loads the V2ray configuration from assets or from a cached value.
+     * It first attempts to use the cached configuration if available, otherwise reads
+     * the configuration from the "v2ray_config.json" asset file.
+     *
+     * @param configContext Runtime context used to access app assets and profile data
+     * @return V2rayConfig object parsed from the JSON configuration, or null if the configuration is empty
+     */
+    private fun initV2rayConfig(configContext: CoreConfigContext): V2rayConfig? {
+        val context = configContext.context
+        var assets = ""
+        if (needTun()) {
+            assets = initConfigCacheWithTun ?: Utils.readTextFromAssets(context, "v2ray_config_with_tun.json")
+            if (TextUtils.isEmpty(assets)) {
+                return null
+            }
+            initConfigCacheWithTun = assets
+        } else {
+            assets = initConfigCache ?: Utils.readTextFromAssets(context, "v2ray_config.json")
+            if (TextUtils.isEmpty(assets)) {
+                return null
+            }
+            initConfigCache = assets
+        }
+        val config = JsonUtil.fromJson(assets, V2rayConfig::class.java)
+        return config
+    }
+
+
+    //endregion
+
+
+    //region some sub function
+
+    private fun needTun(): Boolean {
+        return SettingsManager.isVpnMode() && !SettingsManager.isUsingHevTun()
+    }
+
+    /**
+     * Configures the inbound settings for V2ray.
+     *
+     * This function sets up the listening ports, sniffing options, and other inbound-related configurations.
+     *
+     * @param v2rayConfig The V2ray configuration object to be modified
+     * @return true if inbound configuration was successful, false otherwise
+     */
+    private fun getInbounds(v2rayConfig: V2rayConfig): Boolean {
+        try {
+            val vpn = SettingsManager.isVpnMode()
+            val useHev = SettingsManager.isUsingHevTun()
+            val forcedByHev = vpn && useHev
+
+            val enableLocalProxy = forcedByHev || MmkvManager.decodeSettingsBool(AppConfig.PREF_ENABLE_LOCAL_PROXY, true)
+
+            val socksPort = SettingsManager.getSocksPort()
+            val socksUsername = SettingsManager.getSocksUsername()
+            val socksPassword = SettingsManager.getSocksPassword()
+            val inbound1 = v2rayConfig.inbounds[0]
+            if (inbound1.settings == null) {
+                inbound1.settings = V2rayConfig.InboundBean.InSettingsBean()
+            }
+
+            if (MmkvManager.decodeSettingsBool(AppConfig.PREF_PROXY_SHARING) != true) {
+                inbound1.listen = AppConfig.LOOPBACK
+            }
+            inbound1.port = socksPort
+            inbound1.settings?.udp = MmkvManager.decodeSettingsBool(AppConfig.PREF_SOCKS_ENABLE_UDP, true)
+            if (socksUsername != null && socksPassword != null) {
+                inbound1.settings?.auth = "password"
+                inbound1.settings?.accounts = listOf(
+                    V2rayConfig.InboundBean.InSettingsBean.SocksAccountBean(
+                        user = socksUsername,
+                        pass = socksPassword
+                    )
+                )
+            } else {
+                inbound1.settings?.auth = "noauth"
+                inbound1.settings?.accounts = null
+            }
+            val fakedns = MmkvManager.decodeSettingsBool(AppConfig.PREF_FAKE_DNS_ENABLED) == true
+            val sniffAllTlsAndHttp =
+                MmkvManager.decodeSettingsBool(AppConfig.PREF_SNIFFING_ENABLED, true) != false
+            inbound1.sniffing?.enabled = fakedns || sniffAllTlsAndHttp
+            inbound1.sniffing?.routeOnly =
+                MmkvManager.decodeSettingsBool(AppConfig.PREF_ROUTE_ONLY_ENABLED, false)
+            if (!sniffAllTlsAndHttp) {
+                inbound1.sniffing?.destOverride?.clear()
+            }
+            if (fakedns) {
+                inbound1.sniffing?.destOverride?.add("fakedns")
+            }
+
+            if (!Utils.isXray()) {
+                val inbound2 = JsonUtil.fromJson(JsonUtil.toJson(inbound1), V2rayConfig.InboundBean::class.java) ?: return false
+                inbound2.tag = EConfigType.HTTP.name.lowercase()
+                inbound2.port = SettingsManager.getHttpPort()
+                inbound2.protocol = EConfigType.HTTP.name.lowercase()
+                inbound2.settings?.auth = null
+                inbound2.settings?.udp = null
+                v2rayConfig.inbounds.add(inbound2)
+            }
+
+            if (!enableLocalProxy) {
+                v2rayConfig.inbounds.removeIf { it.protocol == "socks" || it.protocol == "http" }
+            }
+
+            if (needTun()) {
+                val inboundTun = v2rayConfig.inbounds.firstOrNull { e -> e.tag == "tun" }
+                inboundTun?.settings?.mtu = SettingsManager.getVpnMtu()
+                inboundTun?.sniffing = inbound1.sniffing
+            }
+        } catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to configure inbounds", e)
+            return false
+        }
+        return true
+    }
+
+    /**
+     * Configures the fake DNS settings if enabled.
+     *
+     * Adds FakeDNS configuration to v2rayConfig if both local DNS and fake DNS are enabled.
+     *
+     * @param v2rayConfig The V2ray configuration object to be modified
+     */
+    private fun getFakeDns(v2rayConfig: V2rayConfig) {
+        if (MmkvManager.decodeSettingsBool(AppConfig.PREF_LOCAL_DNS_ENABLED) == true
+            && MmkvManager.decodeSettingsBool(AppConfig.PREF_FAKE_DNS_ENABLED) == true
+        ) {
+            v2rayConfig.fakedns = listOf(V2rayConfig.FakednsBean())
+        }
+    }
+
+    /**
+     * Injects custom outbound profiles into the V2ray configuration.
+     * Uses pre-resolved profiles from the context instead of re-parsing.
+     *
+     * @param v2rayConfig The V2ray configuration to modify
+     * @param customOutbounds Pre-resolved custom outbound profiles (tag -> ProfileItem mapping)
+     */
+    private fun injectCustomOutbounds(v2rayConfig: V2rayConfig, customOutbounds: Map<String, ProfileItem>) {
+        val existingTags = v2rayConfig.outbounds.mapTo(mutableSetOf()) { it.tag }
+
+        customOutbounds.forEach { (tag, profile) ->
+            if (tag in existingTags) return@forEach
+            try {
+                val outbound = convertProfile2Outbound(profile) ?: run {
+                    LogUtil.w(AppConfig.TAG, "Could not convert profile '$tag' to outbound, skipping")
+                    return@forEach
+                }
+                outbound.tag = tag
+                v2rayConfig.outbounds.add(outbound)
+                existingTags.add(tag)
+                LogUtil.d(AppConfig.TAG, "Injected custom outbound: tag='$tag'")
+            } catch (e: Exception) {
+                LogUtil.e(AppConfig.TAG, "Failed to inject custom outbound for tag '$tag', skipping", e)
+            }
+        }
+    }
+
+    /**
+     * Configures routing settings for V2ray.
+     *
+     * Sets up the domain strategy, injects custom outbounds from rulesets, and adds routing rules.
+     *
+     * @param configContext Configuration context with custom outbound profiles
+     * @param v2rayConfig The V2ray configuration object to be modified
+     * @return true if routing configuration was successful, false otherwise
+     */
+    private fun getRouting(configContext: CoreConfigContext, v2rayConfig: V2rayConfig): Boolean {
+        try {
+
+            v2rayConfig.routing.domainStrategy =
+                MmkvManager.decodeSettingsString(AppConfig.PREF_ROUTING_DOMAIN_STRATEGY)
+                    ?: "AsIs"
+
+            // Inject custom outbound profiles from routing rulesets
+            injectCustomOutbounds(v2rayConfig, configContext.customOutboundProfiles)
+
+            val rulesetItems = MmkvManager.decodeRoutingRulesets()
+            rulesetItems?.forEach { key ->
+                getRoutingUserRule(configContext, key, v2rayConfig)
+            }
+        } catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to configure routing", e)
+            return false
+        }
+        return true
+    }
+
+    /**
+     * Adds a specific ruleset item to the routing configuration.
+     *
+     * @param configContext Runtime context used by routing helpers
+     * @param item The ruleset item to add
+     * @param v2rayConfig The V2ray configuration object to be modified
+     */
+    private fun getRoutingUserRule(configContext: CoreConfigContext, item: RulesetItem?, v2rayConfig: V2rayConfig) {
+        val context = configContext.context
+        try {
+            if (item == null || !item.enabled) {
+                return
+            }
+
+            val rule = JsonUtil.fromJson(JsonUtil.toJson(item), V2rayConfig.RoutingBean.RulesBean::class.java) ?: return
+
+            // Replace specific geoip rules with ext versions
+            rule.ip?.let { ipList ->
+                val updatedIpList = ArrayList<String>()
+                ipList.forEach { ip ->
+                    when (ip) {
+                        AppConfig.GEOIP_CN -> updatedIpList.add("ext:${AppConfig.GEOIP_ONLY_CN_PRIVATE_DAT}:cn")
+                        AppConfig.GEOIP_PRIVATE -> updatedIpList.add("ext:${AppConfig.GEOIP_ONLY_CN_PRIVATE_DAT}:private")
+                        else -> updatedIpList.add(ip)
+                    }
+                }
+                rule.ip = updatedIpList
+            }
+
+            if (SettingsManager.canUseProcessRouting()) {
+                // Convert process package names to UIDs
+                rule.process?.let { processList ->
+                    if (processList.isNotEmpty()) {
+                        val uids = PackageUidResolver.packageNamesToUids(context, processList)
+                        rule.process = uids.ifEmpty { null }
+                    }
+                }
+            } else {
+                rule.process = null
+            }
+
+            // If the outbound tag is a custom one that failed to inject, fall back to proxy
+            val outboundTag = rule.outboundTag
+            if (!outboundTag.isNullOrBlank()
+                && outboundTag !in AppConfig.BUILTIN_OUTBOUND_TAGS
+                && v2rayConfig.outbounds.none { it.tag == outboundTag }
+            ) {
+                LogUtil.w(AppConfig.TAG, "Outbound tag '$outboundTag' not found, falling back to '${AppConfig.TAG_PROXY}'")
+                rule.outboundTag = AppConfig.TAG_PROXY
+            }
+
+            v2rayConfig.routing.rules.add(rule)
+
+        } catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to apply routing user rule", e)
+        }
+    }
+
+    /**
+     * Retrieves domain rules for a specific outbound tag.
+     *
+     * Searches through all rulesets to find domains targeting the specified tag.
+     *
+     * @param tag The outbound tag to search for
+     * @return ArrayList of domain rules matching the tag
+     */
+    private fun getUserRule2Domain(tag: String): ArrayList<String> {
+        val domain = ArrayList<String>()
+
+        val rulesetItems = MmkvManager.decodeRoutingRulesets()
+        rulesetItems?.forEach { key ->
+            if (key.enabled && key.outboundTag == tag && !key.domain.isNullOrEmpty()) {
+                key.domain?.forEach {
+                    domain.add(it)
+                }
+            }
+        }
+
+        return domain
+    }
+
+    /**
+     * Retrieves domain rules for custom outbound tags.
+     *
+     * Searches through all rulesets to find domains targeting any custom outbound tags.
+     *
+     * @return ArrayList of domain rules matching custom outbound tags
+     */
+    private fun getCustomOutboundUserRule2Domain(): ArrayList<String> {
+        val domain = ArrayList<String>()
+
+        val rulesetItems = MmkvManager.decodeRoutingRulesets()
+        rulesetItems?.forEach { key ->
+            if (key.enabled && !AppConfig.BUILTIN_OUTBOUND_TAGS.contains(key.outboundTag)
+                && !key.domain.isNullOrEmpty()
+            ) {
+                key.domain?.forEach {
+                    domain.add(it)
+                }
+            }
+        }
+
+        return domain
+    }
+
+    /**
+     * Configures custom local DNS settings.
+     *
+     * Sets up DNS inbound, outbound, and routing rules for local DNS resolution.
+     *
+     * @param v2rayConfig The V2ray configuration object to be modified
+     * @return true if custom local DNS configuration was successful, false otherwise
+     */
+    private fun getCustomLocalDns(v2rayConfig: V2rayConfig): Boolean {
+        try {
+            if (MmkvManager.decodeSettingsBool(AppConfig.PREF_FAKE_DNS_ENABLED) == true) {
+                val geositeCn = arrayListOf(AppConfig.GEOSITE_CN)
+                val proxyDomain = getUserRule2Domain(AppConfig.TAG_PROXY)
+                val directDomain = getUserRule2Domain(AppConfig.TAG_DIRECT)
+                val finalDomain = geositeCn.plus(proxyDomain).plus(directDomain).distinct()
+                // fakedns with all domains to make it always top priority
+                v2rayConfig.dns?.servers?.add(
+                    0,
+                    V2rayConfig.DnsBean.ServersBean(
+                        address = "fakedns",
+                        domains = finalDomain
+                    )
+                )
+            }
+
+            if (SettingsManager.isVpnMode()) {
+                if (SettingsManager.isUsingHevTun()) {
+                    //hev-socks5-tunnel dns routing
+                    v2rayConfig.routing.rules.add(
+                        0, V2rayConfig.RoutingBean.RulesBean(
+                            inboundTag = arrayListOf("socks"),
+                            outboundTag = "dns-out",
+                            port = "53",
+                        )
+                    )
+                } else {
+                    v2rayConfig.routing.rules.add(
+                        0, V2rayConfig.RoutingBean.RulesBean(
+                            inboundTag = arrayListOf("tun"),
+                            outboundTag = "dns-out",
+                            port = "53",
+                        )
+                    )
+                }
+            }
+
+            // DNS outbound
+            if (v2rayConfig.outbounds.none { e -> e.protocol == "dns" && e.tag == "dns-out" }) {
+                v2rayConfig.outbounds.add(
+                    V2rayConfig.OutboundBean(
+                        protocol = "dns",
+                        tag = "dns-out",
+                        settings = null,
+                        streamSettings = null,
+                        mux = null
+                    )
+                )
+            }
+        } catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to configure custom local DNS", e)
+            return false
+        }
+        return true
+    }
+
+    /**
+     * Configures the DNS settings for V2ray.
+     *
+     * Sets up DNS servers, hosts, and routing rules for DNS resolution.
+     *
+     * @param v2rayConfig The V2ray configuration object to be modified
+     * @return true if DNS configuration was successful, false otherwise
+     */
+    private fun getDns(v2rayConfig: V2rayConfig): Boolean {
+        try {
+            val hosts = mutableMapOf<String, Any>()
+            val servers = ArrayList<Any>()
+
+            //remote Dns
+            val remoteDns = SettingsManager.getRemoteDnsServers()
+            val proxyDomain = (getUserRule2Domain(AppConfig.TAG_PROXY) + getCustomOutboundUserRule2Domain()).distinct()
+            remoteDns.forEach {
+                servers.add(it)
+            }
+            if (proxyDomain.isNotEmpty()) {
+                servers.add(
+                    V2rayConfig.DnsBean.ServersBean(
+                        address = remoteDns.first(),
+                        domains = proxyDomain,
+                    )
+                )
+            }
+
+            // domestic DNS
+            val domesticDns = SettingsManager.getDomesticDnsServers()
+            val directDomain = getUserRule2Domain(AppConfig.TAG_DIRECT)
+            val isCnRoutingMode = directDomain.contains(AppConfig.GEOSITE_CN)
+            val cnRegionFilter = { domain: String ->
+                domain.startsWith("geosite:") && (domain.endsWith("-cn") || domain.endsWith("@cn"))
+                        || domain == AppConfig.GEOSITE_CN
+            }
+            val finalDirectDomain = if (isCnRoutingMode) directDomain.filterNot {
+                cnRegionFilter(it)
+            } else directDomain
+            val domesticDnsTags = mutableListOf<String>()
+            domesticDns.forEachIndexed { index, element ->
+                val tag = AppConfig.TAG_DOMESTIC_DNS + index
+                servers.add(
+                    V2rayConfig.DnsBean.ServersBean(
+                        address = element,
+                        domains = finalDirectDomain,
+                        skipFallback = true,
+                        tag = tag
+                    )
+                )
+                domesticDnsTags.add(tag)
+            }
+            if (isCnRoutingMode) {
+                val geoipCn = arrayListOf(AppConfig.GEOIP_CN)
+                val cnRegionDomain = directDomain.filter { cnRegionFilter(it) }
+                domesticDns.forEachIndexed { index, element ->
+                    val geositeCnDnsTag = AppConfig.TAG_DOMESTIC_DNS + index + "_cn_expect"
+                    servers.add(
+                        V2rayConfig.DnsBean.ServersBean(
+                            address = element,
+                            domains = cnRegionDomain,
+                            expectIPs = geoipCn,
+                            skipFallback = true,
+                            tag = geositeCnDnsTag
+                        )
+                    )
+                    domesticDnsTags.add(geositeCnDnsTag)
+                }
+            }
+
+            //block dns
+            val blkDomain = getUserRule2Domain(AppConfig.TAG_BLOCKED)
+            if (blkDomain.isNotEmpty()) {
+                hosts.putAll(blkDomain.map { it to AppConfig.LOOPBACK })
+            }
+
+            // hardcode googleapi rule to fix play store problems
+            hosts[AppConfig.GOOGLEAPIS_CN_DOMAIN] = AppConfig.GOOGLEAPIS_COM_DOMAIN
+
+            // hardcode popular Android Private DNS rule to fix localhost DNS problem
+            hosts[AppConfig.DNS_ALIDNS_DOMAIN] = AppConfig.DNS_ALIDNS_ADDRESSES
+            hosts[AppConfig.DNS_CLOUDFLARE_ONE_DOMAIN] = AppConfig.DNS_CLOUDFLARE_ONE_ADDRESSES
+            hosts[AppConfig.DNS_CLOUDFLARE_DNS_COM_DOMAIN] = AppConfig.DNS_CLOUDFLARE_DNS_COM_ADDRESSES
+            hosts[AppConfig.DNS_CLOUDFLARE_DNS_DOMAIN] = AppConfig.DNS_CLOUDFLARE_DNS_ADDRESSES
+            hosts[AppConfig.DNS_DNSPOD_DOMAIN] = AppConfig.DNS_DNSPOD_ADDRESSES
+            hosts[AppConfig.DNS_GOOGLE_DOMAIN] = AppConfig.DNS_GOOGLE_ADDRESSES
+            hosts[AppConfig.DNS_QUAD9_DOMAIN] = AppConfig.DNS_QUAD9_ADDRESSES
+            hosts[AppConfig.DNS_YANDEX_DOMAIN] = AppConfig.DNS_YANDEX_ADDRESSES
+
+            //User DNS hosts
+            try {
+                val userHosts = MmkvManager.decodeSettingsString(AppConfig.PREF_DNS_HOSTS)
+                if (userHosts.isNotNullEmpty()) {
+                    var userHostsMap = userHosts?.split(",")
+                        ?.filter { it.isNotEmpty() }
+                        ?.filter { it.contains(":") }
+                        ?.associate { it.split(":").let { (k, v) -> k to v } }
+                    if (userHostsMap != null) hosts.putAll(userHostsMap)
+                }
+            } catch (e: Exception) {
+                LogUtil.e(AppConfig.TAG, "Failed to configure user DNS hosts", e)
+            }
+
+            // DNS dns
+            v2rayConfig.dns = V2rayConfig.DnsBean(
+                servers = servers,
+                hosts = hosts,
+                tag = AppConfig.TAG_DNS,
+                enableParallelQuery = if ((domesticDns.size + remoteDns.size) > 2) true else null
+            )
+
+            // DNS routing
+            v2rayConfig.routing.rules.add(
+                V2rayConfig.RoutingBean.RulesBean(
+                    outboundTag = AppConfig.TAG_DIRECT,
+                    inboundTag = domesticDnsTags,
+                    domain = null
+                )
+            )
+            v2rayConfig.routing.rules.add(
+                V2rayConfig.RoutingBean.RulesBean(
+                    outboundTag = AppConfig.TAG_PROXY,
+                    inboundTag = arrayListOf(AppConfig.TAG_DNS),
+                    domain = null
+                )
+            )
+        } catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to configure DNS", e)
+            return false
+        }
+        return true
+    }
+
+
+    //endregion
+
+
+    //region outbound related functions
+
+    /**
+     * Configures the primary outbound connection.
+     *
+     * Converts the profile to an outbound configuration and applies global settings.
+     *
+     * @param configContext Runtime context containing the selected profile
+     * @param v2rayConfig The V2ray configuration object to be modified
+     * @return true if outbound configuration was successful, null if there was an error
+     */
+    private fun getOutbounds(configContext: CoreConfigContext, v2rayConfig: V2rayConfig): Boolean? {
+        val outbound = convertProfile2Outbound(configContext.selectedProfile) ?: return null
+
+        if (v2rayConfig.outbounds.isNotEmpty()) {
+            v2rayConfig.outbounds[0] = outbound
+        } else {
+            v2rayConfig.outbounds.add(outbound)
+        }
+        return true
+    }
+
+    /**
+     * Configures load balancing settings for the V2ray configuration.
+     *
+     * @param configContext Runtime context containing policy group settings
+     * @param v2rayConfig The V2ray configuration object to be modified with balancing settings
+     */
+    private fun getBalance(configContext: CoreConfigContext, v2rayConfig: V2rayConfig) {
+        val config = configContext.selectedProfile
+        try {
+            v2rayConfig.routing.rules.forEach { rule ->
+                if (rule.outboundTag == AppConfig.TAG_PROXY) {
+                    rule.outboundTag = null
+                    rule.balancerTag = AppConfig.TAG_BALANCER
+                }
+            }
+
+            val lstSelector = listOf("proxy-")
+            when (config.policyGroupType) {
+                // Least Ping goto else
+                "1" -> {
+                    // Least Load
+                    val balancer = V2rayConfig.RoutingBean.BalancerBean(
+                        tag = AppConfig.TAG_BALANCER,
+                        selector = lstSelector,
+                        strategy = V2rayConfig.RoutingBean.StrategyObject(
+                            type = "leastLoad"
+                        )
+                    )
+                    v2rayConfig.routing.balancers = listOf(balancer)
+                    v2rayConfig.burstObservatory = V2rayConfig.BurstObservatoryObject(
+                        subjectSelector = lstSelector,
+                        pingConfig = V2rayConfig.BurstObservatoryObject.PingConfigObject(
+                            destination = MmkvManager.decodeSettingsString(AppConfig.PREF_DELAY_TEST_URL) ?: AppConfig.DELAY_TEST_URL,
+                            interval = "5m",
+                            sampling = 2,
+                            timeout = "30s"
+                        )
+                    )
+                }
+
+                "2" -> {
+                    // Random
+                    val balancer = V2rayConfig.RoutingBean.BalancerBean(
+                        tag = AppConfig.TAG_BALANCER,
+                        selector = lstSelector,
+                        strategy = V2rayConfig.RoutingBean.StrategyObject(
+                            type = "random"
+                        )
+                    )
+                    v2rayConfig.routing.balancers = listOf(balancer)
+                }
+
+                "3" -> {
+                    // Round Robin
+                    val balancer = V2rayConfig.RoutingBean.BalancerBean(
+                        tag = AppConfig.TAG_BALANCER,
+                        selector = lstSelector,
+                        strategy = V2rayConfig.RoutingBean.StrategyObject(
+                            type = "roundRobin"
+                        )
+                    )
+                    v2rayConfig.routing.balancers = listOf(balancer)
+                }
+
+                else -> {
+                    // Default: Least Ping
+                    val balancer = V2rayConfig.RoutingBean.BalancerBean(
+                        tag = AppConfig.TAG_BALANCER,
+                        selector = lstSelector,
+                        strategy = V2rayConfig.RoutingBean.StrategyObject(
+                            type = "leastPing"
+                        )
+                    )
+                    v2rayConfig.routing.balancers = listOf(balancer)
+                    v2rayConfig.observatory = V2rayConfig.ObservatoryObject(
+                        subjectSelector = lstSelector,
+                        probeUrl = MmkvManager.decodeSettingsString(AppConfig.PREF_DELAY_TEST_URL) ?: AppConfig.DELAY_TEST_URL,
+                        probeInterval = "3m",
+                        enableConcurrency = true
+                    )
+                }
+            }
+
+            if (v2rayConfig.routing.domainStrategy == "IPIfNonMatch") {
+                v2rayConfig.routing.rules.add(
+                    V2rayConfig.RoutingBean.RulesBean(
+                        ip = arrayListOf("0.0.0.0/0", "::/0"),
+                        balancerTag = AppConfig.TAG_BALANCER,
+                    )
+                )
+            } else {
+                v2rayConfig.routing.rules.add(
+                    V2rayConfig.RoutingBean.RulesBean(
+                        network = "tcp,udp",
+                        balancerTag = AppConfig.TAG_BALANCER,
+                    )
+                )
+            }
+        } catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to configure balance", e)
+        }
+    }
+
+    /**
+     * Resolves domain names to IP addresses in outbound connections.
+     *
+     * Pre-resolves domains to improve connection speed and reliability.
+     *
+     * @param v2rayConfig The V2ray configuration object to be modified
+     */
+    private fun resolveOutboundDomainsToHosts(v2rayConfig: V2rayConfig) {
+        val proxyOutboundList = v2rayConfig.getAllProxyOutbound()
+        val dns = v2rayConfig.dns ?: return
+        val newHosts = dns.hosts?.toMutableMap() ?: mutableMapOf()
+        val preferIpv6 = MmkvManager.decodeSettingsBool(AppConfig.PREF_PREFER_IPV6) == true
+
+        for (item in proxyOutboundList) {
+            val domain = item.getServerAddress()
+            if (domain.isNullOrEmpty()) continue
+
+            if (newHosts.containsKey(domain)) {
+                item.ensureSockopt().domainStrategy = "UseIP"
+                item.ensureSockopt().happyEyeballs = V2rayConfig.OutboundBean.StreamSettingsBean.HappyEyeballsBean(
+                    prioritizeIPv6 = preferIpv6,
+                    interleave = 2
+                )
+                continue
+            }
+
+            val resolvedIps = HttpUtil.resolveHostToIP(domain, preferIpv6)
+            if (resolvedIps.isNullOrEmpty()) continue
+
+            item.ensureSockopt().domainStrategy = "UseIP"
+            item.ensureSockopt().happyEyeballs = V2rayConfig.OutboundBean.StreamSettingsBean.HappyEyeballsBean(
+                prioritizeIPv6 = preferIpv6,
+                interleave = 2
+            )
+            newHosts[domain] = if (resolvedIps.size == 1) {
+                resolvedIps[0]
+            } else {
+                resolvedIps
+            }
+        }
+
+        dns.hosts = newHosts
+    }
+
+    /**
+     * Converts a profile item to an outbound configuration.
+     *
+     * Delegates to [CoreOutboundBuilder] which owns all per-protocol
+     * conversion logic, keeping this manager focused on config orchestration.
+     *
+     * @param profileItem The profile item to convert
+     * @return OutboundBean configuration for the profile, or null if not supported
+     */
+    private fun convertProfile2Outbound(profileItem: ProfileItem): V2rayConfig.OutboundBean? {
+        return CoreOutboundBuilder.convert(profileItem)
+    }
+
+    //endregion
+}

V2rayNG/app/src/main/java/com/v2ray/ang/core/CoreNativeManager.kt

@@ -1,4 +1,4 @@
-package com.v2ray.ang.handler
+package com.v2ray.ang.core
 
 import android.content.Context
 import com.v2ray.ang.AppConfig
@@ -16,7 +16,7 @@ import java.util.concurrent.atomic.AtomicBoolean
  * Thread-safe singleton wrapper for Libv2ray native methods.
  * Provides initialization protection and unified API for V2Ray core operations.
  */
-object V2RayNativeManager {
+object CoreNativeManager {
     private val initialized = AtomicBoolean(false)
 
     /**
@@ -88,4 +88,4 @@ object V2RayNativeManager {
             throw e
         }
     }
-}
+}

V2rayNG/app/src/main/java/com/v2ray/ang/core/CoreOutboundBuilder.kt

@@ -0,0 +1,697 @@
+package com.v2ray.ang.core
+
+import android.text.TextUtils
+import com.google.gson.JsonArray
+import com.google.gson.JsonObject
+import com.v2ray.ang.AppConfig
+import com.v2ray.ang.dto.ProfileItem
+import com.v2ray.ang.dto.V2rayConfig.OutboundBean
+import com.v2ray.ang.enums.EConfigType
+import com.v2ray.ang.enums.NetworkType
+import com.v2ray.ang.extension.isNotNullEmpty
+import com.v2ray.ang.extension.nullIfBlank
+import com.v2ray.ang.handler.MmkvManager
+import com.v2ray.ang.util.HttpUtil
+import com.v2ray.ang.util.JsonUtil
+import com.v2ray.ang.util.LogUtil
+import com.v2ray.ang.util.Utils
+
+/**
+ * Centralizes ProfileItem -> OutboundBean conversion.
+ * Most protocol builders mirror the previous *Fmt.toOutbound behavior.
+ */
+object CoreOutboundBuilder {
+
+    /** Dispatches a profile to protocol-specific outbound builder. */
+    fun convert(profileItem: ProfileItem): OutboundBean? {
+        val outbound = when (profileItem.configType) {
+            EConfigType.VMESS -> toOutboundVmess(profileItem)
+            EConfigType.SHADOWSOCKS -> toOutboundShadowsocks(profileItem)
+            EConfigType.SOCKS -> toOutboundSocks(profileItem)
+            EConfigType.VLESS -> toOutboundVless(profileItem)
+            EConfigType.TROJAN -> toOutboundTrojan(profileItem)
+            EConfigType.WIREGUARD -> toOutboundWireguard(profileItem)
+            EConfigType.HYSTERIA2 -> toOutboundHysteria2(profileItem)
+            EConfigType.HTTP -> toOutboundHttp(profileItem)
+            else -> null
+        }
+
+        outbound ?: return null
+        val ret = updateOutboundWithGlobalSettings(outbound)
+        if (!ret) return null
+        return outbound
+    }
+
+    /** Applies global outbound options (mux, protocol-specific tweaks, etc.). */
+    private fun updateOutboundWithGlobalSettings(outbound: OutboundBean): Boolean {
+        try {
+            var muxEnabled = MmkvManager.decodeSettingsBool(AppConfig.PREF_MUX_ENABLED, false)
+            val protocol = outbound.protocol
+            if (protocol.equals(EConfigType.SHADOWSOCKS.name, true)
+                || protocol.equals(EConfigType.SOCKS.name, true)
+                || protocol.equals(EConfigType.HTTP.name, true)
+                || protocol.equals(EConfigType.TROJAN.name, true)
+                || protocol.equals(EConfigType.WIREGUARD.name, true)
+                || protocol.equals(EConfigType.HYSTERIA2.name, true)
+                || protocol.equals(EConfigType.HYSTERIA.name, true)
+            ) {
+                muxEnabled = false
+            } else if (outbound.streamSettings?.network == NetworkType.XHTTP.type) {
+                muxEnabled = false
+            }
+
+            if (muxEnabled) {
+                outbound.mux?.enabled = true
+                outbound.mux?.concurrency = MmkvManager.decodeSettingsString(AppConfig.PREF_MUX_CONCURRENCY, "8").orEmpty().toInt()
+                outbound.mux?.xudpConcurrency = MmkvManager.decodeSettingsString(AppConfig.PREF_MUX_XUDP_CONCURRENCY, "16").orEmpty().toInt()
+                outbound.mux?.xudpProxyUDP443 = MmkvManager.decodeSettingsString(AppConfig.PREF_MUX_XUDP_QUIC, "reject")
+                if (protocol.equals(EConfigType.VLESS.name, true) && outbound.settings?.vnext?.first()?.users?.first()?.flow?.isNotEmpty() == true) {
+                    outbound.mux?.concurrency = -1
+                }
+            } else {
+                outbound.mux?.enabled = false
+                outbound.mux?.concurrency = -1
+            }
+
+            if (protocol.equals(EConfigType.WIREGUARD.name, true)) {
+                var localTunAddr = if (outbound.settings?.address == null) {
+                    listOf(AppConfig.WIREGUARD_LOCAL_ADDRESS_V4)
+                } else {
+                    outbound.settings?.address as List<*>
+                }
+                if (MmkvManager.decodeSettingsBool(AppConfig.PREF_IPV6_ENABLED) != true) {
+                    localTunAddr = listOf(localTunAddr.first())
+                }
+                outbound.settings?.address = localTunAddr
+            }
+
+            if (outbound.streamSettings?.network == AppConfig.DEFAULT_NETWORK
+                && outbound.streamSettings?.tcpSettings?.header?.type == AppConfig.HEADER_TYPE_HTTP
+            ) {
+                val path = outbound.streamSettings?.tcpSettings?.header?.request?.path
+                val host = outbound.streamSettings?.tcpSettings?.header?.request?.headers?.Host
+
+                val requestString: String by lazy {
+                    """{"version":"1.1","method":"GET","headers":{"User-Agent":["Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.6478.122 Mobile Safari/537.36"],"Accept-Encoding":["gzip, deflate"],"Connection":["keep-alive"],"Pragma":["no-cache"]}}"""
+                }
+                outbound.streamSettings?.tcpSettings?.header?.request = JsonUtil.fromJson(
+                    requestString,
+                    OutboundBean.StreamSettingsBean.TcpSettingsBean.HeaderBean.RequestBean::class.java
+                )
+                outbound.streamSettings?.tcpSettings?.header?.request?.path =
+                    if (path.isNullOrEmpty()) {
+                        listOf("/")
+                    } else {
+                        path
+                    }
+                outbound.streamSettings?.tcpSettings?.header?.request?.headers?.Host = host
+            }
+
+
+        } catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to update outbound with global settings", e)
+            return false
+        }
+        return true
+    }
+
+    /** Creates an initial outbound template for a protocol type. */
+    fun createInitOutbound(configType: EConfigType): OutboundBean? {
+        return when (configType) {
+            EConfigType.VMESS,
+            EConfigType.VLESS ->
+                return OutboundBean(
+                    protocol = configType.name.lowercase(),
+                    settings = OutboundBean.OutSettingsBean(
+                        vnext = listOf(
+                            OutboundBean.OutSettingsBean.VnextBean(
+                                users = listOf(OutboundBean.OutSettingsBean.VnextBean.UsersBean())
+                            )
+                        )
+                    ),
+                    streamSettings = OutboundBean.StreamSettingsBean()
+                )
+
+            EConfigType.SHADOWSOCKS,
+            EConfigType.SOCKS,
+            EConfigType.HTTP,
+            EConfigType.TROJAN ->
+                return OutboundBean(
+                    protocol = configType.name.lowercase(),
+                    settings = OutboundBean.OutSettingsBean(
+                        servers = listOf(OutboundBean.OutSettingsBean.ServersBean())
+                    ),
+                    streamSettings = OutboundBean.StreamSettingsBean()
+                )
+
+            EConfigType.WIREGUARD ->
+                return OutboundBean(
+                    protocol = configType.name.lowercase(),
+                    settings = OutboundBean.OutSettingsBean(
+                        secretKey = "",
+                        peers = listOf(OutboundBean.OutSettingsBean.WireGuardBean())
+                    )
+                )
+
+            EConfigType.HYSTERIA,
+            EConfigType.HYSTERIA2 ->
+                return OutboundBean(
+                    protocol = EConfigType.HYSTERIA.name.lowercase(),
+                    settings = OutboundBean.OutSettingsBean(
+                        servers = null
+                    ),
+                    streamSettings = OutboundBean.StreamSettingsBean()
+                )
+
+            else -> null
+        }
+    }
+
+    // ── Per-protocol builders — implementations are identical to each *Fmt.toOutbound ──
+
+    private fun toOutboundVmess(profileItem: ProfileItem): OutboundBean? {
+        val outboundBean = createInitOutbound(EConfigType.VMESS)
+
+        outboundBean?.settings?.vnext?.first()?.let { vnext ->
+            vnext.address = getServerAddress(profileItem)
+            vnext.port = profileItem.serverPort.orEmpty().toInt()
+            vnext.users[0].id = profileItem.password.orEmpty()
+            vnext.users[0].security = profileItem.method
+        }
+
+        val sni = outboundBean?.streamSettings?.let {
+            populateTransportSettings(it, profileItem)
+        }
+
+        outboundBean?.streamSettings?.let {
+            populateTlsSettings(it, profileItem, sni)
+        }
+
+        return outboundBean
+    }
+
+    private fun toOutboundVless(profileItem: ProfileItem): OutboundBean? {
+        val outboundBean = createInitOutbound(EConfigType.VLESS)
+
+        outboundBean?.settings?.vnext?.first()?.let { vnext ->
+            vnext.address = getServerAddress(profileItem)
+            vnext.port = profileItem.serverPort.orEmpty().toInt()
+            vnext.users[0].id = profileItem.password.orEmpty()
+            vnext.users[0].encryption = profileItem.method
+            vnext.users[0].flow = profileItem.flow
+        }
+
+        val sni = outboundBean?.streamSettings?.let {
+            populateTransportSettings(it, profileItem)
+        }
+
+        outboundBean?.streamSettings?.let {
+            populateTlsSettings(it, profileItem, sni)
+        }
+
+        return outboundBean
+    }
+
+    private fun toOutboundShadowsocks(profileItem: ProfileItem): OutboundBean? {
+        val outboundBean = createInitOutbound(EConfigType.SHADOWSOCKS)
+
+        outboundBean?.settings?.servers?.first()?.let { server ->
+            server.address = getServerAddress(profileItem)
+            server.port = profileItem.serverPort.orEmpty().toInt()
+            server.password = profileItem.password
+            server.method = profileItem.method
+        }
+
+        val sni = outboundBean?.streamSettings?.let {
+            populateTransportSettings(it, profileItem)
+        }
+
+        outboundBean?.streamSettings?.let {
+            populateTlsSettings(it, profileItem, sni)
+        }
+
+        return outboundBean
+    }
+
+    private fun toOutboundTrojan(profileItem: ProfileItem): OutboundBean? {
+        val outboundBean = createInitOutbound(EConfigType.TROJAN)
+
+        outboundBean?.settings?.servers?.first()?.let { server ->
+            server.address = getServerAddress(profileItem)
+            server.port = profileItem.serverPort.orEmpty().toInt()
+            server.password = profileItem.password
+            server.flow = profileItem.flow
+        }
+
+        val sni = outboundBean?.streamSettings?.let {
+            populateTransportSettings(it, profileItem)
+        }
+
+        outboundBean?.streamSettings?.let {
+            populateTlsSettings(it, profileItem, sni)
+        }
+
+        return outboundBean
+    }
+
+    private fun toOutboundSocks(profileItem: ProfileItem): OutboundBean? {
+        val outboundBean = createInitOutbound(EConfigType.SOCKS)
+
+        outboundBean?.settings?.servers?.first()?.let { server ->
+            server.address = getServerAddress(profileItem)
+            server.port = profileItem.serverPort.orEmpty().toInt()
+            if (profileItem.username.isNotNullEmpty()) {
+                val socksUsersBean = OutboundBean.OutSettingsBean.ServersBean.SocksUsersBean()
+                socksUsersBean.user = profileItem.username.orEmpty()
+                socksUsersBean.pass = profileItem.password.orEmpty()
+                server.users = listOf(socksUsersBean)
+            }
+        }
+
+        return outboundBean
+    }
+
+    private fun toOutboundHttp(profileItem: ProfileItem): OutboundBean? {
+        val outboundBean = createInitOutbound(EConfigType.HTTP)
+
+        outboundBean?.settings?.servers?.first()?.let { server ->
+            server.address = getServerAddress(profileItem)
+            server.port = profileItem.serverPort.orEmpty().toInt()
+            if (profileItem.username.isNotNullEmpty()) {
+                val socksUsersBean = OutboundBean.OutSettingsBean.ServersBean.SocksUsersBean()
+                socksUsersBean.user = profileItem.username.orEmpty()
+                socksUsersBean.pass = profileItem.password.orEmpty()
+                server.users = listOf(socksUsersBean)
+            }
+        }
+
+        return outboundBean
+    }
+
+    private fun toOutboundWireguard(profileItem: ProfileItem): OutboundBean? {
+        val outboundBean = createInitOutbound(EConfigType.WIREGUARD)
+
+        outboundBean?.settings?.let { wireguard ->
+            wireguard.secretKey = profileItem.secretKey
+            wireguard.address = (profileItem.localAddress ?: AppConfig.WIREGUARD_LOCAL_ADDRESS_V4).split(",")
+            wireguard.peers?.firstOrNull()?.let { peer ->
+                peer.publicKey = profileItem.publicKey.orEmpty()
+                peer.preSharedKey = profileItem.preSharedKey?.nullIfBlank()
+                peer.endpoint = Utils.getIpv6Address(profileItem.server) + ":${profileItem.serverPort}"
+            }
+            wireguard.mtu = profileItem.mtu
+            wireguard.reserved = profileItem.reserved?.takeIf { it.isNotBlank() }?.split(",")?.filter { it.isNotBlank() }?.map { it.trim().toInt() }
+        }
+
+        return outboundBean
+    }
+
+    private fun toOutboundHysteria2(profileItem: ProfileItem): OutboundBean? {
+        val outboundBean = createInitOutbound(EConfigType.HYSTERIA2) ?: return null
+        profileItem.network = NetworkType.HYSTERIA.type
+        profileItem.alpn = "h3"
+
+        outboundBean.settings?.let { server ->
+            server.address = getServerAddress(profileItem)
+            server.port = profileItem.serverPort.orEmpty().toInt()
+            server.version = 2
+        }
+
+        val sni = outboundBean.streamSettings?.let {
+            populateTransportSettings(it, profileItem)
+        }
+
+        outboundBean.streamSettings?.let {
+            populateTlsSettings(it, profileItem, sni)
+        }
+
+        return outboundBean
+    }
+
+    /**
+     * Configures transport settings for an outbound connection.
+     *
+     * Sets up protocol-specific transport options based on the profile settings.
+     *
+     * @param streamSettings The stream settings to configure
+     * @param profileItem The profile containing transport configuration
+     * @return The Server Name Indication (SNI) value to use, or null if not applicable
+     */
+    fun populateTransportSettings(streamSettings: OutboundBean.StreamSettingsBean, profileItem: ProfileItem): String? {
+        val transport = profileItem.network.orEmpty()
+        val headerType = profileItem.headerType
+        val host = profileItem.host
+        val path = profileItem.path
+        val seed = profileItem.seed
+//        val quicSecurity = profileItem.quicSecurity
+//        val key = profileItem.quicKey
+        val mode = profileItem.mode
+        val serviceName = profileItem.serviceName
+        val authority = profileItem.authority
+        val xhttpMode = profileItem.xhttpMode
+        val xhttpExtra = profileItem.xhttpExtra
+        val finalMask = profileItem.finalMask
+        var sni: String? = null
+        streamSettings.network = transport.ifEmpty { NetworkType.TCP.type }
+        when (streamSettings.network) {
+            NetworkType.TCP.type -> {
+                val tcpSetting = OutboundBean.StreamSettingsBean.TcpSettingsBean()
+                if (headerType == AppConfig.HEADER_TYPE_HTTP) {
+                    tcpSetting.header.type = AppConfig.HEADER_TYPE_HTTP
+                    if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(path)) {
+                        val requestObj = OutboundBean.StreamSettingsBean.TcpSettingsBean.HeaderBean.RequestBean()
+                        requestObj.headers.Host = host.orEmpty().split(",").map { it.trim() }.filter { it.isNotEmpty() }
+                        requestObj.path = path.orEmpty().split(",").map { it.trim() }.filter { it.isNotEmpty() }
+                        tcpSetting.header.request = requestObj
+                        sni = requestObj.headers.Host?.getOrNull(0)
+                    }
+                } else {
+                    tcpSetting.header.type = "none"
+                    sni = host
+                }
+                streamSettings.tcpSettings = tcpSetting
+            }
+
+            NetworkType.KCP.type -> {
+                val kcpSetting = OutboundBean.StreamSettingsBean.KcpSettingsBean()
+                profileItem.kcpMtu?.let { kcpSetting.mtu = it }
+                profileItem.kcpTti?.let { kcpSetting.tti = it }
+                streamSettings.kcpSettings = kcpSetting
+                val udpMaskList = mutableListOf<OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean>()
+                if (!headerType.isNullOrEmpty() && headerType != "none") {
+                    val kcpHeaderType = when {
+                        headerType == "wechat-video" -> "header-wechat"
+                        else -> "header-$headerType"
+                    }
+                    udpMaskList.add(
+                        OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean(
+                            type = kcpHeaderType,
+                            settings = if (headerType == "dns" && !host.isNullOrEmpty()) {
+                                OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean.MaskSettingsBean(
+                                    domain = host
+                                )
+                            } else {
+                                null
+                            }
+                        )
+                    )
+                }
+                if (seed.isNullOrEmpty()) {
+                    udpMaskList.add(
+                        OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean(
+                            type = "mkcp-original"
+                        )
+                    )
+                } else {
+                    udpMaskList.add(
+                        OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean(
+                            type = "mkcp-aes128gcm",
+                            settings = OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean.MaskSettingsBean(
+                                password = seed
+                            )
+                        )
+                    )
+                }
+                streamSettings.finalmask = OutboundBean.StreamSettingsBean.FinalMaskBean(
+                    udp = udpMaskList.toList()
+                )
+            }
+
+            NetworkType.WS.type -> {
+                val wssetting = OutboundBean.StreamSettingsBean.WsSettingsBean()
+                wssetting.headers.Host = host.orEmpty()
+                sni = host
+                wssetting.path = path ?: "/"
+                streamSettings.wsSettings = wssetting
+            }
+
+            NetworkType.HTTP_UPGRADE.type -> {
+                val httpupgradeSetting = OutboundBean.StreamSettingsBean.HttpupgradeSettingsBean()
+                httpupgradeSetting.host = host.orEmpty()
+                sni = host
+                httpupgradeSetting.path = path ?: "/"
+                streamSettings.httpupgradeSettings = httpupgradeSetting
+            }
+
+            NetworkType.XHTTP.type -> {
+                val xhttpSetting = OutboundBean.StreamSettingsBean.XhttpSettingsBean()
+                xhttpSetting.host = host.orEmpty()
+                sni = host
+                xhttpSetting.path = path ?: "/"
+                xhttpSetting.mode = xhttpMode
+                xhttpSetting.extra = JsonUtil.parseString(xhttpExtra)
+                streamSettings.xhttpSettings = xhttpSetting
+            }
+
+            NetworkType.H2.type, NetworkType.HTTP.type -> {
+                streamSettings.network = NetworkType.H2.type
+                val h2Setting = OutboundBean.StreamSettingsBean.HttpSettingsBean()
+                h2Setting.host = host.orEmpty().split(",").map { it.trim() }.filter { it.isNotEmpty() }
+                sni = h2Setting.host.getOrNull(0)
+                h2Setting.path = path ?: "/"
+                streamSettings.httpSettings = h2Setting
+            }
+
+//                    "quic" -> {
+//                        val quicsetting = QuicSettingBean()
+//                        quicsetting.security = quicSecurity ?: "none"
+//                        quicsetting.key = key.orEmpty()
+//                        quicsetting.header.type = headerType ?: "none"
+//                        quicSettings = quicsetting
+//                    }
+
+            NetworkType.GRPC.type -> {
+                val grpcSetting = OutboundBean.StreamSettingsBean.GrpcSettingsBean()
+                grpcSetting.multiMode = mode == "multi"
+                grpcSetting.serviceName = serviceName.orEmpty()
+                grpcSetting.authority = authority.orEmpty()
+                grpcSetting.idle_timeout = 60
+                grpcSetting.health_check_timeout = 20
+                sni = authority
+                streamSettings.grpcSettings = grpcSetting
+            }
+
+            NetworkType.HYSTERIA.type -> {
+                val hysteriaSetting = OutboundBean.StreamSettingsBean.HysteriaSettingsBean(
+                    version = 2,
+                    auth = profileItem.password.orEmpty(),
+                )
+                val quicParams = OutboundBean.StreamSettingsBean.FinalMaskBean.QuicParamsBean(
+                    brutalUp = profileItem.bandwidthUp?.nullIfBlank(),
+                    brutalDown = profileItem.bandwidthDown?.nullIfBlank(),
+                )
+                quicParams.congestion = if (quicParams.brutalUp != null || quicParams.brutalDown != null) "brutal" else null
+                if (profileItem.portHopping.isNotNullEmpty()) {
+                    val rawInterval = profileItem.portHoppingInterval?.trim().nullIfBlank()
+                    val interval = if (rawInterval == null) {
+                        "30"
+                    } else {
+                        val singleValue = rawInterval.toIntOrNull()
+                        if (singleValue != null) {
+                            if (singleValue < 5) {
+                                "30"
+                            } else {
+                                rawInterval
+                            }
+                        } else {
+                            val parts = rawInterval.split('-')
+                            if (parts.size == 2) {
+                                val start = parts[0].trim().toIntOrNull()
+                                val end = parts[1].trim().toIntOrNull()
+                                if (start != null && end != null) {
+                                    val minStart = maxOf(5, start)
+                                    val minEnd = maxOf(minStart, end)
+                                    "$minStart-$minEnd"
+                                } else {
+                                    "30"
+                                }
+                            } else {
+                                "30"
+                            }
+                        }
+                    }
+                    quicParams.udpHop = OutboundBean.StreamSettingsBean.FinalMaskBean.QuicParamsBean.UdpHopBean(
+                        ports = profileItem.portHopping,
+                        interval = interval
+                    )
+                }
+                val finalmask = OutboundBean.StreamSettingsBean.FinalMaskBean(
+                    quicParams = quicParams
+                )
+                if (profileItem.obfsPassword.isNotNullEmpty()) {
+                    finalmask.udp = listOf(
+                        OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean(
+                            type = "salamander",
+                            settings = OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean.MaskSettingsBean(
+                                password = profileItem.obfsPassword.orEmpty()
+                            )
+                        )
+                    )
+                }
+                streamSettings.hysteriaSettings = hysteriaSetting
+                streamSettings.finalmask = finalmask
+            }
+        }
+        finalMask?.let {
+            val parsedFinalMask = JsonUtil.parseString(finalMask)
+            if (parsedFinalMask != null) {
+                streamSettings.finalmask = parsedFinalMask
+            } else {
+                LogUtil.w("V2rayConfigManager", "Invalid finalMask JSON, keeping previously generated finalmask")
+            }
+        }
+        return sni
+    }
+
+    /**
+     * Configures TLS or REALITY security settings for an outbound connection.
+     *
+     * Sets up security-related parameters like certificates, fingerprints, and SNI.
+     *
+     * @param streamSettings The stream settings to configure
+     * @param profileItem The profile containing security configuration
+     * @param sniExt An external SNI value to use if the profile doesn't specify one
+     */
+    fun populateTlsSettings(streamSettings: OutboundBean.StreamSettingsBean, profileItem: ProfileItem, sniExt: String?) {
+        val streamSecurity = profileItem.security.orEmpty()
+        val allowInsecure = profileItem.insecure == true
+        val sni = if (profileItem.sni.isNullOrEmpty()) {
+            when {
+                sniExt.isNotNullEmpty() && Utils.isDomainName(sniExt) -> sniExt
+                profileItem.server.isNotNullEmpty() && Utils.isDomainName(profileItem.server) -> profileItem.server
+                else -> sniExt
+            }
+        } else {
+            profileItem.sni
+        }
+
+        streamSettings.security = streamSecurity.nullIfBlank()
+        if (streamSettings.security == null) return
+        val tlsSetting = OutboundBean.StreamSettingsBean.TlsSettingsBean(
+            allowInsecure = allowInsecure,
+            serverName = sni.nullIfBlank(),
+            fingerprint = profileItem.fingerPrint.nullIfBlank(),
+            alpn = profileItem.alpn?.split(",")?.map { it.trim() }?.filter { it.isNotEmpty() }.takeIf { !it.isNullOrEmpty() },
+            echConfigList = profileItem.echConfigList.nullIfBlank(),
+            pinnedPeerCertSha256 = profileItem.pinnedCA256.nullIfBlank(),
+            publicKey = profileItem.publicKey.nullIfBlank(),
+            shortId = profileItem.shortId.nullIfBlank(),
+            spiderX = profileItem.spiderX.nullIfBlank(),
+            mldsa65Verify = profileItem.mldsa65Verify.nullIfBlank(),
+        )
+        if (streamSettings.security == AppConfig.TLS) {
+            streamSettings.tlsSettings = tlsSetting
+            streamSettings.realitySettings = null
+        } else if (streamSettings.security == AppConfig.REALITY) {
+            streamSettings.tlsSettings = null
+            streamSettings.realitySettings = tlsSetting
+        }
+
+        if (profileItem.finalMask.isNullOrEmpty()) {
+            updateOutboundFragment(streamSettings)
+        }
+    }
+
+    /**
+     * Updates the outbound with fragment settings for traffic optimization.
+     *
+     * Configures packet fragmentation for TLS and REALITY protocols if enabled.
+     *
+     * @param streamSettings The streamSettings object to be modified
+     * @return true if fragment configuration was successful, false otherwise
+     */
+    private fun updateOutboundFragment(streamSettings: OutboundBean.StreamSettingsBean): Boolean {
+        try {
+            if (MmkvManager.decodeSettingsBool(AppConfig.PREF_FRAGMENT_ENABLED, false) == false) {
+                return true
+            }
+            if (streamSettings.security != AppConfig.TLS
+                && streamSettings.security != AppConfig.REALITY
+            ) {
+                return true
+            }
+            if (streamSettings.sockopt?.dialerProxy.isNotNullEmpty()) {
+                return true
+            }
+
+            var packets =
+                MmkvManager.decodeSettingsString(AppConfig.PREF_FRAGMENT_PACKETS) ?: "tlshello"
+            if (streamSettings.security == AppConfig.REALITY
+                && packets == "tlshello"
+            ) {
+                packets = "1-3"
+            } else if (streamSettings.security == AppConfig.TLS
+                && packets != "tlshello"
+            ) {
+                packets = "tlshello"
+            }
+
+            val fragmentMask = OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean(
+                type = "fragment",
+                settings = OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean.MaskSettingsBean(
+                    packets = packets,
+                    length = MmkvManager.decodeSettingsString(AppConfig.PREF_FRAGMENT_LENGTH)
+                        ?: "50-100",
+                    delay = MmkvManager.decodeSettingsString(AppConfig.PREF_FRAGMENT_INTERVAL)
+                        ?: "10-20"
+                )
+            )
+            val noiseMask = OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean(
+                type = "noise",
+                settings = OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean.MaskSettingsBean(
+                    noise = listOf(
+                        OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean.MaskSettingsBean.NoiseMaskBean(
+                            rand = "10-20",
+                            delay = "10-16",
+                        )
+                    )
+                )
+            )
+
+            val finalMaskObj = streamSettings.finalmask?.let { existingFinalMask ->
+                JsonUtil.parseString(JsonUtil.toJson(existingFinalMask))
+            } ?: JsonObject()
+
+            // finalmask.tcp / finalmask.udp are arrays; prepend mask at index 0.
+            fun prependMask(scope: String, mask: OutboundBean.StreamSettingsBean.FinalMaskBean.MaskBean) {
+                val current = finalMaskObj.get(scope)
+                if (current != null && current.isJsonArray && current.asJsonArray.size() > 0) {
+                    return
+                }
+
+                val newArray = JsonArray()
+                newArray.add(JsonUtil.parseString(JsonUtil.toJson(mask)))
+
+                if (current != null && current.isJsonArray) {
+                    current.asJsonArray.forEach { newArray.add(it) }
+                }
+                finalMaskObj.add(scope, newArray)
+            }
+
+            prependMask("tcp", fragmentMask)
+            prependMask("udp", noiseMask)
+            streamSettings.finalmask = finalMaskObj
+        } catch (e: Exception) {
+            LogUtil.e(AppConfig.TAG, "Failed to update outbound fragment", e)
+            return false
+        }
+        return true
+    }
+
+    private fun getServerAddress(profileItem: ProfileItem): String {
+        if (Utils.isPureIpAddress(profileItem.server.orEmpty())) {
+            return profileItem.server.orEmpty()
+        }
+
+        val domain = HttpUtil.toIdnDomain(profileItem.server.orEmpty())
+        if (MmkvManager.decodeSettingsString(AppConfig.PREF_OUTBOUND_DOMAIN_RESOLVE_METHOD, "1") != "2") {
+            return domain
+        }
+        //Resolve and replace domain
+        val resolvedIps = HttpUtil.resolveHostToIP(domain, MmkvManager.decodeSettingsBool(AppConfig.PREF_PREFER_IPV6))
+        if (resolvedIps.isNullOrEmpty()) {
+            return domain
+        }
+        return resolvedIps.first()
+    }
+}

V2rayNG/app/src/main/java/com/v2ray/ang/core/CoreServiceManager.kt

@@ -1,4 +1,4 @@
-package com.v2ray.ang.handler
+package com.v2ray.ang.core
 
 import android.app.Service
 import android.content.BroadcastReceiver
@@ -16,8 +16,12 @@ import com.v2ray.ang.contracts.ServiceControl
 import com.v2ray.ang.dto.ProfileItem
 import com.v2ray.ang.enums.EConfigType
 import com.v2ray.ang.extension.toast
-import com.v2ray.ang.service.V2RayProxyOnlyService
-import com.v2ray.ang.service.V2RayVpnService
+import com.v2ray.ang.handler.MmkvManager
+import com.v2ray.ang.handler.NotificationManager
+import com.v2ray.ang.handler.SettingsManager
+import com.v2ray.ang.handler.SpeedtestManager
+import com.v2ray.ang.service.CoreProxyOnlyService
+import com.v2ray.ang.service.CoreVpnService
 import com.v2ray.ang.util.LogUtil
 import com.v2ray.ang.util.MessageUtil
 import com.v2ray.ang.util.Utils
@@ -30,9 +34,9 @@ import libv2ray.ProcessFinder
 import java.lang.ref.SoftReference
 import java.net.InetSocketAddress
 
-object V2RayServiceManager {
+object CoreServiceManager {
 
-    private val coreController: CoreController = V2RayNativeManager.newCoreController(CoreCallback())
+    private val coreController: CoreController = CoreNativeManager.newCoreController(CoreCallback())
     private val mMsgReceive = ReceiveMessageHandler()
     private var currentConfig: ProfileItem? = null
     private var processFinder: XrayProcessFinder? = null
@@ -41,7 +45,7 @@ object V2RayServiceManager {
         set(value) {
             field = value
             val service = value?.get()?.getService()
-            V2RayNativeManager.initCoreEnv(service)
+            CoreNativeManager.initCoreEnv(service)
             if (service != null && processFinder == null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                 processFinder = XrayProcessFinder(service)
                 coreController.registerProcessFinder(processFinder)
@@ -123,6 +127,7 @@ object V2RayServiceManager {
 
         if (config.configType != EConfigType.CUSTOM
             && config.configType != EConfigType.POLICYGROUP
+            && config.configType != EConfigType.PROXYCHAIN
             && !Utils.isValidUrl(config.server)
             && !Utils.isPureIpAddress(config.server.orEmpty())
         ) {
@@ -144,10 +149,10 @@ object V2RayServiceManager {
         val isVpnMode = SettingsManager.isVpnMode()
         val intent = if (isVpnMode) {
             LogUtil.i(AppConfig.TAG, "StartCore-Manager: Starting VPN service")
-            Intent(context.applicationContext, V2RayVpnService::class.java)
+            Intent(context.applicationContext, CoreVpnService::class.java)
         } else {
             LogUtil.i(AppConfig.TAG, "StartCore-Manager: Starting Proxy service")
-            Intent(context.applicationContext, V2RayProxyOnlyService::class.java)
+            Intent(context.applicationContext, CoreProxyOnlyService::class.java)
         }
 
         try {
@@ -187,7 +192,7 @@ object V2RayServiceManager {
         }
 
         LogUtil.i(AppConfig.TAG, "StartCore-Manager: Starting core loop for ${config.remarks}")
-        val result = V2rayConfigManager.getV2rayConfig(service, guid)
+        val result = CoreConfigManager.getV2rayConfig(service, guid)
         LogUtil.d(AppConfig.TAG, result.content)
         if (!result.status) {
             LogUtil.e(AppConfig.TAG, "StartCore-Manager: Failed to get V2Ray config")

V2rayNG/app/src/main/java/com/v2ray/ang/dto/CoreConfigContext.kt

@@ -0,0 +1,16 @@
+package com.v2ray.ang.dto
+
+import android.content.Context
+import com.v2ray.ang.enums.CoreResolvedType
+
+/**
+ * Runtime context produced by the builder and consumed by CoreConfigManager.
+ */
+data class CoreConfigContext(
+    val context: Context,
+    val guid: String,
+    val selectedProfile: ProfileItem,
+    val resolvedProfiles: List<ProfileItem>,
+    val resolvedType: CoreResolvedType,
+    val customOutboundProfiles: Map<String, ProfileItem> = emptyMap(),
+)

V2rayNG/app/src/main/java/com/v2ray/ang/dto/ProfileItem.kt

@@ -69,6 +69,7 @@ data class ProfileItem(
     var policyGroupType: String? = null,
     var policyGroupSubscriptionId: String? = null,
     var policyGroupFilter: String? = null,
+    var proxyChainProfiles: String? = null,
 
     ) {
     companion object {
@@ -129,6 +130,7 @@ data class ProfileItem(
                 && this.portHopping == obj.portHopping
                 && this.portHoppingInterval == obj.portHoppingInterval
                 && this.pinnedCA256 == obj.pinnedCA256
+                && this.proxyChainProfiles == obj.proxyChainProfiles
                 )
     }
 }

V2rayNG/app/src/main/java/com/v2ray/ang/dto/RealPingEvent.kt

@@ -0,0 +1,14 @@
+package com.v2ray.ang.dto
+
+sealed class RealPingEvent {
+
+    /** Periodic progress update while the batch is still running. */
+    data class Progress(val text: String) : RealPingEvent()
+
+    /** A single server result is available. */
+    data class Result(val guid: String, val delayMillis: Long) : RealPingEvent()
+
+    /** The entire batch has finished or been cancelled. */
+    data class Finish(val status: String) : RealPingEvent()
+}
+

V2rayNG/app/src/main/java/com/v2ray/ang/dto/V2rayConfig.kt

@@ -401,6 +401,7 @@ data class V2rayConfig(
         val clientIp: String? = null,
         val disableCache: Boolean? = null,
         val queryStrategy: String? = null,
+        val enableParallelQuery: Boolean? = null,
         val tag: String? = null
     ) {
         data class ServersBean(

V2rayNG/app/src/main/java/com/v2ray/ang/enums/CoreResolvedType.kt

@@ -0,0 +1,9 @@
+package com.v2ray.ang.enums
+
+/** Runtime type used during config assembly only. */
+enum class CoreResolvedType {
+    NORMAL,
+    POLICYGROUP,
+    PROXYCHAIN,
+    CUSTOM,
+}

V2rayNG/app/src/main/java/com/v2ray/ang/enums/EConfigType.kt

@@ -15,7 +15,8 @@ enum class EConfigType(val value: Int, val protocolScheme: String) {
     HYSTERIA2(9, AppConfig.HYSTERIA2),
     HYSTERIA(900, AppConfig.HYSTERIA),
     HTTP(10, AppConfig.HTTP),
-    POLICYGROUP(101, AppConfig.CUSTOM);
+    POLICYGROUP(101, AppConfig.CUSTOM),
+    PROXYCHAIN(102, AppConfig.CUSTOM);
 
     companion object {
         fun fromInt(value: Int) = entries.firstOrNull { it.value == value }

V2rayNG/app/src/main/java/com/v2ray/ang/enums/NotificationChannelType.kt

@@ -0,0 +1,22 @@
+package com.v2ray.ang.enums
+
+/**
+ * Enum defining different notification channels.
+ * Each channel has a unique channelId, notificationId, and display name.
+ */
+enum class NotificationChannelType(
+    val channelId: String,
+    val channelName: String,
+    val notificationId: Int
+) {
+    SUBSCRIPTION_UPDATE(
+        channelId = "subscription_update_channel",
+        channelName = "Subscription Update Service",
+        notificationId = 13
+    ),
+    CORE_TEST(
+        channelId = "core_test_channel",
+        channelName = "Core Test Service",
+        notificationId = 12
+    )
+}

V2rayNG/app/src/main/java/com/v2ray/ang/fmt/FmtBase.kt

@@ -172,21 +172,4 @@ open class FmtBase {
 
         return dicQuery
     }
-
-    fun getServerAddress(profileItem: ProfileItem): String {
-        if (Utils.isPureIpAddress(profileItem.server.orEmpty())) {
-            return profileItem.server.orEmpty()
-        }
-
-        val domain = HttpUtil.toIdnDomain(profileItem.server.orEmpty())
-        if (MmkvManager.decodeSettingsString(AppConfig.PREF_OUTBOUND_DOMAIN_RESOLVE_METHOD, "1") != "2") {
-            return domain
-        }
-        //Resolve and replace domain
-        val resolvedIps = HttpUtil.resolveHostToIP(domain, MmkvManager.decodeSettingsBool(AppConfig.PREF_PREFER_IPV6))
-        if (resolvedIps.isNullOrEmpty()) {
-            return domain
-        }
-        return resolvedIps.first()
-    }
 }

V2rayNG/app/src/main/java/com/v2ray/ang/fmt/HttpFmt.kt

@@ -1,32 +0,0 @@
-package com.v2ray.ang.fmt
-
-import com.v2ray.ang.dto.ProfileItem
-import com.v2ray.ang.dto.V2rayConfig.OutboundBean
-import com.v2ray.ang.enums.EConfigType
-import com.v2ray.ang.extension.isNotNullEmpty
-import com.v2ray.ang.handler.V2rayConfigManager
-
-object HttpFmt : FmtBase() {
-    /**
-     * Converts a ProfileItem object to an OutboundBean object.
-     *
-     * @param profileItem the ProfileItem object to convert
-     * @return the converted OutboundBean object, or null if conversion fails
-     */
-    fun toOutbound(profileItem: ProfileItem): OutboundBean? {
-        val outboundBean = V2rayConfigManager.createInitOutbound(EConfigType.HTTP)
-
-        outboundBean?.settings?.servers?.first()?.let { server ->
-            server.address = getServerAddress(profileItem)
-            server.port = profileItem.serverPort.orEmpty().toInt()
-            if (profileItem.username.isNotNullEmpty()) {
-                val socksUsersBean = OutboundBean.OutSettingsBean.ServersBean.SocksUsersBean()
-                socksUsersBean.user = profileItem.username.orEmpty()
-                socksUsersBean.pass = profileItem.password.orEmpty()
-                server.users = listOf(socksUsersBean)
-            }
-        }
-
-        return outboundBean
-    }
-}

V2rayNG/app/src/main/java/com/v2ray/ang/fmt/Hysteria2Fmt.kt

@@ -2,14 +2,12 @@ package com.v2ray.ang.fmt
 
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.dto.ProfileItem
-import com.v2ray.ang.dto.V2rayConfig.OutboundBean
 import com.v2ray.ang.enums.EConfigType
 import com.v2ray.ang.enums.NetworkType
 import com.v2ray.ang.extension.idnHost
 import com.v2ray.ang.extension.isNotNullEmpty
 import com.v2ray.ang.extension.nullIfBlank
 import com.v2ray.ang.handler.MmkvManager
-import com.v2ray.ang.handler.V2rayConfigManager
 import com.v2ray.ang.util.Utils
 import java.net.URI
 
@@ -110,32 +108,4 @@ object Hysteria2Fmt : FmtBase() {
 
         return toUri(config, config.password, dicQuery)
     }
-
-    /**
-     * Converts a ProfileItem object to an OutboundBean object.
-     *
-     * @param profileItem the ProfileItem object to convert
-     * @return the converted OutboundBean object, or null if conversion fails
-     */
-    fun toOutbound(profileItem: ProfileItem): OutboundBean? {
-        val outboundBean = V2rayConfigManager.createInitOutbound(EConfigType.HYSTERIA2) ?: return null
-        profileItem.network = NetworkType.HYSTERIA.type
-        profileItem.alpn = "h3"
-
-        outboundBean.settings?.let { server ->
-            server.address = getServerAddress(profileItem)
-            server.port = profileItem.serverPort.orEmpty().toInt()
-            server.version = 2
-        }
-
-        val sni = outboundBean.streamSettings?.let {
-            V2rayConfigManager.populateTransportSettings(it, profileItem)
-        }
-
-        outboundBean.streamSettings?.let {
-            V2rayConfigManager.populateTlsSettings(it, profileItem, sni)
-        }
-
-        return outboundBean
-    }
 }

V2rayNG/app/src/main/java/com/v2ray/ang/fmt/ShadowsocksFmt.kt

@@ -2,11 +2,9 @@ package com.v2ray.ang.fmt
 
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.dto.ProfileItem
-import com.v2ray.ang.dto.V2rayConfig.OutboundBean
 import com.v2ray.ang.enums.EConfigType
 import com.v2ray.ang.enums.NetworkType
 import com.v2ray.ang.extension.idnHost
-import com.v2ray.ang.handler.V2rayConfigManager
 import com.v2ray.ang.util.LogUtil
 import com.v2ray.ang.util.Utils
 import java.net.URI
@@ -124,31 +122,4 @@ object ShadowsocksFmt : FmtBase() {
 
         return toUri(config, Utils.encode(pw, true), null)
     }
-
-    /**
-     * Converts a ProfileItem object to an OutboundBean object.
-     *
-     * @param profileItem the ProfileItem object to convert
-     * @return the converted OutboundBean object, or null if conversion fails
-     */
-    fun toOutbound(profileItem: ProfileItem): OutboundBean? {
-        val outboundBean = V2rayConfigManager.createInitOutbound(EConfigType.SHADOWSOCKS)
-
-        outboundBean?.settings?.servers?.first()?.let { server ->
-            server.address = getServerAddress(profileItem)
-            server.port = profileItem.serverPort.orEmpty().toInt()
-            server.password = profileItem.password
-            server.method = profileItem.method
-        }
-
-        val sni = outboundBean?.streamSettings?.let {
-            V2rayConfigManager.populateTransportSettings(it, profileItem)
-        }
-
-        outboundBean?.streamSettings?.let {
-            V2rayConfigManager.populateTlsSettings(it, profileItem, sni)
-        }
-
-        return outboundBean
-    }
 }

V2rayNG/app/src/main/java/com/v2ray/ang/fmt/SocksFmt.kt

@@ -1,11 +1,9 @@
 package com.v2ray.ang.fmt
 
 import com.v2ray.ang.dto.ProfileItem
-import com.v2ray.ang.dto.V2rayConfig.OutboundBean
 import com.v2ray.ang.enums.EConfigType
 import com.v2ray.ang.extension.idnHost
 import com.v2ray.ang.extension.isNotNullEmpty
-import com.v2ray.ang.handler.V2rayConfigManager
 import com.v2ray.ang.util.Utils
 import java.net.URI
 
@@ -53,27 +51,4 @@ object SocksFmt : FmtBase() {
 
         return toUri(config, Utils.encode(pw, true), null)
     }
-
-    /**
-     * Converts a ProfileItem object to an OutboundBean object.
-     *
-     * @param profileItem the ProfileItem object to convert
-     * @return the converted OutboundBean object, or null if conversion fails
-     */
-    fun toOutbound(profileItem: ProfileItem): OutboundBean? {
-        val outboundBean = V2rayConfigManager.createInitOutbound(EConfigType.SOCKS)
-
-        outboundBean?.settings?.servers?.first()?.let { server ->
-            server.address = getServerAddress(profileItem)
-            server.port = profileItem.serverPort.orEmpty().toInt()
-            if (profileItem.username.isNotNullEmpty()) {
-                val socksUsersBean = OutboundBean.OutSettingsBean.ServersBean.SocksUsersBean()
-                socksUsersBean.user = profileItem.username.orEmpty()
-                socksUsersBean.pass = profileItem.password.orEmpty()
-                server.users = listOf(socksUsersBean)
-            }
-        }
-
-        return outboundBean
-    }
 }

V2rayNG/app/src/main/java/com/v2ray/ang/fmt/TrojanFmt.kt

@@ -2,12 +2,10 @@ package com.v2ray.ang.fmt
 
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.dto.ProfileItem
-import com.v2ray.ang.dto.V2rayConfig.OutboundBean
 import com.v2ray.ang.enums.EConfigType
 import com.v2ray.ang.enums.NetworkType
 import com.v2ray.ang.extension.idnHost
 import com.v2ray.ang.handler.MmkvManager
-import com.v2ray.ang.handler.V2rayConfigManager
 import com.v2ray.ang.util.Utils
 import java.net.URI
 
@@ -53,31 +51,4 @@ object TrojanFmt : FmtBase() {
 
         return toUri(config, config.password, dicQuery)
     }
-
-    /**
-     * Converts a ProfileItem object to an OutboundBean object.
-     *
-     * @param profileItem the ProfileItem object to convert
-     * @return the converted OutboundBean object, or null if conversion fails
-     */
-    fun toOutbound(profileItem: ProfileItem): OutboundBean? {
-        val outboundBean = V2rayConfigManager.createInitOutbound(EConfigType.TROJAN)
-
-        outboundBean?.settings?.servers?.first()?.let { server ->
-            server.address = getServerAddress(profileItem)
-            server.port = profileItem.serverPort.orEmpty().toInt()
-            server.password = profileItem.password
-            server.flow = profileItem.flow
-        }
-
-        val sni = outboundBean?.streamSettings?.let {
-            V2rayConfigManager.populateTransportSettings(it, profileItem)
-        }
-
-        outboundBean?.streamSettings?.let {
-            V2rayConfigManager.populateTlsSettings(it, profileItem, sni)
-        }
-
-        return outboundBean
-    }
 }

V2rayNG/app/src/main/java/com/v2ray/ang/fmt/VlessFmt.kt

@@ -2,11 +2,9 @@ package com.v2ray.ang.fmt
 
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.dto.ProfileItem
-import com.v2ray.ang.dto.V2rayConfig.OutboundBean
 import com.v2ray.ang.enums.EConfigType
 import com.v2ray.ang.extension.idnHost
 import com.v2ray.ang.handler.MmkvManager
-import com.v2ray.ang.handler.V2rayConfigManager
 import com.v2ray.ang.util.Utils
 import java.net.URI
 
@@ -50,31 +48,4 @@ object VlessFmt : FmtBase() {
         return toUri(config, config.password, dicQuery)
     }
 
-    /**
-     * Converts a ProfileItem object to an OutboundBean object.
-     *
-     * @param profileItem the ProfileItem object to convert
-     * @return the converted OutboundBean object, or null if conversion fails
-     */
-    fun toOutbound(profileItem: ProfileItem): OutboundBean? {
-        val outboundBean = V2rayConfigManager.createInitOutbound(EConfigType.VLESS)
-
-        outboundBean?.settings?.vnext?.first()?.let { vnext ->
-            vnext.address = getServerAddress(profileItem)
-            vnext.port = profileItem.serverPort.orEmpty().toInt()
-            vnext.users[0].id = profileItem.password.orEmpty()
-            vnext.users[0].encryption = profileItem.method
-            vnext.users[0].flow = profileItem.flow
-        }
-
-        val sni = outboundBean?.streamSettings?.let {
-            V2rayConfigManager.populateTransportSettings(it, profileItem)
-        }
-
-        outboundBean?.streamSettings?.let {
-            V2rayConfigManager.populateTlsSettings(it, profileItem, sni)
-        }
-
-        return outboundBean
-    }
 }

V2rayNG/app/src/main/java/com/v2ray/ang/fmt/VmessFmt.kt

@@ -3,14 +3,12 @@ package com.v2ray.ang.fmt
 import android.text.TextUtils
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.dto.ProfileItem
-import com.v2ray.ang.dto.V2rayConfig.OutboundBean
 import com.v2ray.ang.dto.VmessQRCode
 import com.v2ray.ang.enums.EConfigType
 import com.v2ray.ang.enums.NetworkType
 import com.v2ray.ang.extension.idnHost
 import com.v2ray.ang.extension.nullIfBlank
 import com.v2ray.ang.handler.MmkvManager
-import com.v2ray.ang.handler.V2rayConfigManager
 import com.v2ray.ang.util.JsonUtil
 import com.v2ray.ang.util.LogUtil
 import com.v2ray.ang.util.Utils
@@ -174,31 +172,5 @@ object VmessFmt : FmtBase() {
         return config
     }
 
-    /**
-     * Converts a ProfileItem object to an OutboundBean object.
-     *
-     * @param profileItem the ProfileItem object to convert
-     * @return the converted OutboundBean object, or null if conversion fails
-     */
-    fun toOutbound(profileItem: ProfileItem): OutboundBean? {
-        val outboundBean = V2rayConfigManager.createInitOutbound(EConfigType.VMESS)
-
-        outboundBean?.settings?.vnext?.first()?.let { vnext ->
-            vnext.address = getServerAddress(profileItem)
-            vnext.port = profileItem.serverPort.orEmpty().toInt()
-            vnext.users[0].id = profileItem.password.orEmpty()
-            vnext.users[0].security = profileItem.method
-        }
-
-        val sni = outboundBean?.streamSettings?.let {
-            V2rayConfigManager.populateTransportSettings(it, profileItem)
-        }
-
-        outboundBean?.streamSettings?.let {
-            V2rayConfigManager.populateTlsSettings(it, profileItem, sni)
-        }
-
-        return outboundBean
-    }
 
 }

V2rayNG/app/src/main/java/com/v2ray/ang/fmt/WireguardFmt.kt

@@ -1,14 +1,11 @@
 package com.v2ray.ang.fmt
 
 import com.v2ray.ang.AppConfig
-import com.v2ray.ang.AppConfig.WIREGUARD_LOCAL_ADDRESS_V4
 import com.v2ray.ang.dto.ProfileItem
-import com.v2ray.ang.dto.V2rayConfig.OutboundBean
 import com.v2ray.ang.enums.EConfigType
 import com.v2ray.ang.extension.idnHost
 import com.v2ray.ang.extension.nullIfBlank
 import com.v2ray.ang.extension.removeWhiteSpace
-import com.v2ray.ang.handler.V2rayConfigManager
 import com.v2ray.ang.util.Utils
 import java.net.URI
 
@@ -31,7 +28,7 @@ object WireguardFmt : FmtBase() {
         config.serverPort = uri.port.toString()
 
         config.secretKey = uri.userInfo.orEmpty()
-        config.localAddress = queryParam["address"] ?: WIREGUARD_LOCAL_ADDRESS_V4
+        config.localAddress = queryParam["address"] ?: AppConfig.WIREGUARD_LOCAL_ADDRESS_V4
         config.publicKey = queryParam["publickey"].orEmpty()
         config.preSharedKey = queryParam["presharedkey"]?.nullIfBlank()
         config.mtu = Utils.parseInt(queryParam["mtu"] ?: AppConfig.WIREGUARD_LOCAL_MTU)
@@ -82,7 +79,7 @@ object WireguardFmt : FmtBase() {
 
         config.secretKey = interfaceParams["privatekey"].orEmpty()
         config.remarks = System.currentTimeMillis().toString()
-        config.localAddress = interfaceParams["address"] ?: WIREGUARD_LOCAL_ADDRESS_V4
+        config.localAddress = interfaceParams["address"] ?: AppConfig.WIREGUARD_LOCAL_ADDRESS_V4
         config.mtu = Utils.parseInt(interfaceParams["mtu"] ?: AppConfig.WIREGUARD_LOCAL_MTU)
         config.publicKey = peerParams["publickey"].orEmpty()
         config.preSharedKey = peerParams["presharedkey"]?.nullIfBlank()
@@ -100,29 +97,6 @@ object WireguardFmt : FmtBase() {
         return config
     }
 
-    /**
-     * Converts a ProfileItem object to an OutboundBean object.
-     *
-     * @param profileItem the ProfileItem object to convert
-     * @return the converted OutboundBean object, or null if conversion fails
-     */
-    fun toOutbound(profileItem: ProfileItem): OutboundBean? {
-        val outboundBean = V2rayConfigManager.createInitOutbound(EConfigType.WIREGUARD)
-
-        outboundBean?.settings?.let { wireguard ->
-            wireguard.secretKey = profileItem.secretKey
-            wireguard.address = (profileItem.localAddress ?: WIREGUARD_LOCAL_ADDRESS_V4).split(",")
-            wireguard.peers?.firstOrNull()?.let { peer ->
-                peer.publicKey = profileItem.publicKey.orEmpty()
-                peer.preSharedKey = profileItem.preSharedKey?.nullIfBlank()
-                peer.endpoint = Utils.getIpv6Address(profileItem.server) + ":${profileItem.serverPort}"
-            }
-            wireguard.mtu = profileItem.mtu
-            wireguard.reserved = profileItem.reserved?.takeIf { it.isNotBlank() }?.split(",")?.filter { it.isNotBlank() }?.map { it.trim().toInt() }
-        }
-
-        return outboundBean
-    }
 
     /**
      * Converts a ProfileItem object to a URI string.

V2rayNG/app/src/main/java/com/v2ray/ang/handler/AngConfigManager.kt

@@ -6,6 +6,7 @@ import android.text.TextUtils
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.AppConfig.HY2
 import com.v2ray.ang.R
+import com.v2ray.ang.core.CoreConfigManager
 import com.v2ray.ang.dto.ProfileItem
 import com.v2ray.ang.dto.SubscriptionCache
 import com.v2ray.ang.dto.SubscriptionItem
@@ -111,7 +112,7 @@ object AngConfigManager {
     fun shareFullContent2Clipboard(context: Context, guid: String?): Int {
         try {
             if (guid == null) return -1
-            val result = V2rayConfigManager.getV2rayConfig(context, guid)
+            val result = CoreConfigManager.getV2rayConfig(context, guid)
             if (result.status) {
                 Utils.setClipboard(context, result.content)
             } else {
@@ -136,15 +137,12 @@ object AngConfigManager {
 
             return config.configType.protocolScheme + when (config.configType) {
                 EConfigType.VMESS -> VmessFmt.toUri(config)
-                EConfigType.CUSTOM -> ""
                 EConfigType.SHADOWSOCKS -> ShadowsocksFmt.toUri(config)
                 EConfigType.SOCKS -> SocksFmt.toUri(config)
-                EConfigType.HTTP -> ""
                 EConfigType.VLESS -> VlessFmt.toUri(config)
                 EConfigType.TROJAN -> TrojanFmt.toUri(config)
                 EConfigType.WIREGUARD -> WireguardFmt.toUri(config)
                 EConfigType.HYSTERIA2 -> Hysteria2Fmt.toUri(config)
-                EConfigType.POLICYGROUP -> ""
                 else -> {}
             }
         } catch (e: Exception) {

V2rayNG/app/src/main/java/com/v2ray/ang/handler/NotificationManager.kt

@@ -13,6 +13,7 @@ import androidx.annotation.RequiresApi
 import androidx.core.app.NotificationCompat
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.R
+import com.v2ray.ang.core.CoreServiceManager
 import com.v2ray.ang.dto.ProfileItem
 import com.v2ray.ang.extension.toSpeedString
 import com.v2ray.ang.ui.MainActivity
@@ -44,7 +45,7 @@ object NotificationManager {
      */
     fun startSpeedNotification(currentConfig: ProfileItem?) {
         if (MmkvManager.decodeSettingsBool(AppConfig.PREF_SPEED_ENABLED) != true) return
-        if (speedNotificationJob != null || V2RayServiceManager.isRunning() == false) return
+        if (speedNotificationJob != null || CoreServiceManager.isRunning() == false) return
 
         var lastZeroSpeed = false
         val outboundTags = currentConfig?.getAllOutboundTags()
@@ -67,15 +68,15 @@ object NotificationManager {
                 var proxyTotal = 0L
                 val text = StringBuilder()
                 outboundTags?.forEach {
-                    val up = V2RayServiceManager.queryStats(it, AppConfig.UPLINK)
-                    val down = V2RayServiceManager.queryStats(it, AppConfig.DOWNLINK)
+                    val up = CoreServiceManager.queryStats(it, AppConfig.UPLINK)
+                    val down = CoreServiceManager.queryStats(it, AppConfig.DOWNLINK)
                     if (up + down > 0) {
                         appendSpeedString(text, it, up / sinceLastQueryInSeconds, down / sinceLastQueryInSeconds)
                         proxyTotal += up + down
                     }
                 }
-                val directUplink = V2RayServiceManager.queryStats(AppConfig.TAG_DIRECT, AppConfig.UPLINK)
-                val directDownlink = V2RayServiceManager.queryStats(AppConfig.TAG_DIRECT, AppConfig.DOWNLINK)
+                val directUplink = CoreServiceManager.queryStats(AppConfig.TAG_DIRECT, AppConfig.UPLINK)
+                val directDownlink = CoreServiceManager.queryStats(AppConfig.TAG_DIRECT, AppConfig.DOWNLINK)
                 val zeroSpeed = proxyTotal == 0L && directUplink == 0L && directDownlink == 0L
                 if (!zeroSpeed || !lastZeroSpeed) {
                     if (proxyTotal == 0L) {
@@ -251,6 +252,6 @@ object NotificationManager {
      * @return The service instance.
      */
     private fun getService(): Service? {
-        return V2RayServiceManager.serviceControl?.get()?.getService()
+        return CoreServiceManager.serviceControl?.get()?.getService()
     }
 }

V2rayNG/app/src/main/java/com/v2ray/ang/handler/SettingsManager.kt

@@ -393,6 +393,15 @@ object SettingsManager {
         }
     }
 
+    /**
+     * Get real ping concurrency.
+     * @return The number of concurrent real-ping tests (clamped to 1..64).
+     */
+    fun getRealPingConcurrency(): Int {
+        val value = MmkvManager.decodeSettingsString(AppConfig.PREF_REAL_PING_CONCURRENCY)?.toIntOrNull() ?: 16
+        return value.coerceIn(1, 128)
+    }
+
     /**
      * Get the locale.
      * @return The locale.

V2rayNG/app/src/main/java/com/v2ray/ang/handler/SubscriptionUpdater.kt

@@ -1,12 +1,7 @@
 package com.v2ray.ang.handler
 
 import android.annotation.SuppressLint
-import android.app.NotificationChannel
-import android.app.NotificationManager
 import android.content.Context
-import android.os.Build
-import androidx.core.app.NotificationCompat
-import androidx.core.app.NotificationManagerCompat
 import androidx.work.Constraints
 import androidx.work.CoroutineWorker
 import androidx.work.ExistingPeriodicWorkPolicy
@@ -20,6 +15,8 @@ import com.v2ray.ang.AppConfig
 import com.v2ray.ang.R
 import com.v2ray.ang.dto.SubscriptionCache
 import com.v2ray.ang.util.LogUtil
+import com.v2ray.ang.util.NotificationHelper
+import com.v2ray.ang.enums.NotificationChannelType
 import java.util.concurrent.TimeUnit
 
 object SubscriptionUpdater {
@@ -140,7 +137,7 @@ object SubscriptionUpdater {
         LogUtil.i(
             AppConfig.TAG,
             "SubscriptionUpdater: scheduled [$subId] interval=${intervalMinutes}min " +
-                "initialDelay=${initialDelayMillis / 1000}s policy=$existingWorkPolicy"
+                    "initialDelay=${initialDelayMillis / 1000}s policy=$existingWorkPolicy"
         )
     }
 
@@ -153,16 +150,6 @@ object SubscriptionUpdater {
     class UpdateTask(context: Context, params: WorkerParameters) :
         CoroutineWorker(context, params) {
 
-        private val notificationManager = NotificationManagerCompat.from(applicationContext)
-        private val notification =
-            NotificationCompat.Builder(applicationContext, AppConfig.SUBSCRIPTION_UPDATE_CHANNEL)
-                .setWhen(0)
-                .setTicker("Update")
-                .setContentTitle(applicationContext.getString(R.string.title_pref_auto_update_subscription))
-                .setSmallIcon(R.drawable.ic_stat_name)
-                .setCategory(NotificationCompat.CATEGORY_SERVICE)
-                .setPriority(NotificationCompat.PRIORITY_DEFAULT)
-
         @SuppressLint("MissingPermission")
         override suspend fun doWork(): Result {
             val subId = inputData.getString(KEY_SUB_ID)
@@ -173,7 +160,6 @@ object SubscriptionUpdater {
                 return Result.success()
             }
 
-
             val subItem = MmkvManager.decodeSubscription(subId)
             if (subItem == null) {
                 LogUtil.w(AppConfig.TAG, "SubscriptionUpdater: no subscription found for $subId")
@@ -187,22 +173,20 @@ object SubscriptionUpdater {
 
             val sub = SubscriptionCache(subId, subItem)
 
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-                notificationManager.createNotificationChannel(
-                    NotificationChannel(
-                        AppConfig.SUBSCRIPTION_UPDATE_CHANNEL,
-                        AppConfig.SUBSCRIPTION_UPDATE_CHANNEL_NAME,
-                        NotificationManager.IMPORTANCE_MIN
-                    )
-                )
-            }
+            // Notify about update start
+            NotificationHelper.notify(
+                NotificationChannelType.SUBSCRIPTION_UPDATE,
+                applicationContext,
+                applicationContext.getString(R.string.title_pref_auto_update_subscription),
+                "Updating ${sub.subscription.remarks}"
+            )
 
-            notificationManager.notify(3, notification.build())
             LogUtil.i(AppConfig.TAG, "SubscriptionUpdater automatic update: ---${sub.subscription.remarks}")
             AngConfigManager.updateConfigViaSub(sub)
-            notification.setContentText("Updating ${sub.subscription.remarks}")
 
-            notificationManager.cancel(3)
+            // Clear notification
+            NotificationHelper.cancel(NotificationChannelType.SUBSCRIPTION_UPDATE, applicationContext)
+
             return Result.success()
         }
     }

V2rayNG/app/src/main/java/com/v2ray/ang/receiver/BootReceiver.kt

@@ -6,7 +6,7 @@ import android.content.Intent
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.handler.MmkvManager
 import com.v2ray.ang.handler.SubscriptionUpdater
-import com.v2ray.ang.handler.V2RayServiceManager
+import com.v2ray.ang.core.CoreServiceManager
 import com.v2ray.ang.util.LogUtil
 
 class BootReceiver : BroadcastReceiver() {
@@ -37,7 +37,7 @@ class BootReceiver : BroadcastReceiver() {
         }
 
         LogUtil.i(AppConfig.TAG, "BootReceiver: Starting V2Ray service")
-        V2RayServiceManager.startVService(context)
+        CoreServiceManager.startVService(context)
         SubscriptionUpdater.sync(context)
     }
 }

V2rayNG/app/src/main/java/com/v2ray/ang/receiver/TaskerReceiver.kt

@@ -5,7 +5,7 @@ import android.content.Context
 import android.content.Intent
 import android.text.TextUtils
 import com.v2ray.ang.AppConfig
-import com.v2ray.ang.handler.V2RayServiceManager
+import com.v2ray.ang.core.CoreServiceManager
 import com.v2ray.ang.util.LogUtil
 
 class TaskerReceiver : BroadcastReceiver() {
@@ -28,12 +28,12 @@ class TaskerReceiver : BroadcastReceiver() {
                 return
             } else if (switch) {
                 if (guid == AppConfig.TASKER_DEFAULT_GUID) {
-                    V2RayServiceManager.startVServiceFromToggle(context)
+                    CoreServiceManager.startVServiceFromToggle(context)
                 } else {
-                    V2RayServiceManager.startVService(context, guid)
+                    CoreServiceManager.startVService(context, guid)
                 }
             } else {
-                V2RayServiceManager.stopVService(context)
+                CoreServiceManager.stopVService(context)
             }
         } catch (e: Exception) {
             LogUtil.e(AppConfig.TAG, "Error processing Tasker broadcast", e)

V2rayNG/app/src/main/java/com/v2ray/ang/receiver/WidgetProvider.kt

@@ -9,7 +9,7 @@ import android.content.Intent
 import android.widget.RemoteViews
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.R
-import com.v2ray.ang.handler.V2RayServiceManager
+import com.v2ray.ang.core.CoreServiceManager
 
 class WidgetProvider : AppWidgetProvider() {
     /**
@@ -22,7 +22,7 @@ class WidgetProvider : AppWidgetProvider() {
      */
     override fun onUpdate(context: Context, appWidgetManager: AppWidgetManager, appWidgetIds: IntArray) {
         super.onUpdate(context, appWidgetManager, appWidgetIds)
-        updateWidgetBackground(context, appWidgetManager, appWidgetIds, V2RayServiceManager.isRunning())
+        updateWidgetBackground(context, appWidgetManager, appWidgetIds, CoreServiceManager.isRunning())
     }
 
     /**
@@ -67,10 +67,10 @@ class WidgetProvider : AppWidgetProvider() {
     override fun onReceive(context: Context, intent: Intent) {
         super.onReceive(context, intent)
         if (AppConfig.BROADCAST_ACTION_WIDGET_CLICK == intent.action) {
-            if (V2RayServiceManager.isRunning()) {
-                V2RayServiceManager.stopVService(context)
+            if (CoreServiceManager.isRunning()) {
+                CoreServiceManager.stopVService(context)
             } else {
-                V2RayServiceManager.startVServiceFromToggle(context)
+                CoreServiceManager.startVServiceFromToggle(context)
             }
         } else if (AppConfig.BROADCAST_ACTION_ACTIVITY == intent.action) {
             AppWidgetManager.getInstance(context)?.let { manager ->

V2rayNG/app/src/main/java/com/v2ray/ang/service/CoreProxyOnlyService.kt

@@ -7,19 +7,19 @@ import android.os.IBinder
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.contracts.ServiceControl
 import com.v2ray.ang.handler.SettingsManager
-import com.v2ray.ang.handler.V2RayServiceManager
+import com.v2ray.ang.core.CoreServiceManager
 import com.v2ray.ang.util.LogUtil
 import com.v2ray.ang.util.MyContextWrapper
 import java.lang.ref.SoftReference
 
-class V2RayProxyOnlyService : Service(), ServiceControl {
+class CoreProxyOnlyService : Service(), ServiceControl {
     /**
      * Initializes the service.
      */
     override fun onCreate() {
         super.onCreate()
         LogUtil.i(AppConfig.TAG, "StartCore-Proxy: Service created")
-        V2RayServiceManager.serviceControl = SoftReference(this)
+        CoreServiceManager.serviceControl = SoftReference(this)
     }
 
     /**
@@ -31,7 +31,7 @@ class V2RayProxyOnlyService : Service(), ServiceControl {
      */
     override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
         LogUtil.i(AppConfig.TAG, "StartCore-Proxy: Service command received")
-        V2RayServiceManager.startCoreLoop(null)
+        CoreServiceManager.startCoreLoop(null)
         return START_STICKY
     }
 
@@ -40,7 +40,7 @@ class V2RayProxyOnlyService : Service(), ServiceControl {
      */
     override fun onDestroy() {
         super.onDestroy()
-        V2RayServiceManager.stopCoreLoop()
+        CoreServiceManager.stopCoreLoop()
     }
 
     /**

V2rayNG/app/src/main/java/com/v2ray/ang/service/CoreTestService.kt

@@ -0,0 +1,140 @@
+package com.v2ray.ang.service
+
+import android.app.Service
+import android.content.Intent
+import android.os.IBinder
+import com.v2ray.ang.AppConfig
+import com.v2ray.ang.R
+import com.v2ray.ang.dto.RealPingEvent
+import com.v2ray.ang.dto.TestServiceMessage
+import com.v2ray.ang.extension.serializable
+import com.v2ray.ang.handler.MmkvManager
+import com.v2ray.ang.core.CoreNativeManager
+import com.v2ray.ang.util.LogUtil
+import com.v2ray.ang.util.MessageUtil
+import com.v2ray.ang.util.NotificationHelper
+import com.v2ray.ang.enums.NotificationChannelType
+import java.util.Collections
+
+class CoreTestService : Service() {
+
+    // manage active batch workers so each batch is independent and cancellable
+    private val activeWorkers = Collections.synchronizedList(mutableListOf<RealPingWorkerService>())
+
+    /**
+     * Initializes the V2Ray environment.
+     */
+    override fun onCreate() {
+        super.onCreate()
+        CoreNativeManager.initCoreEnv(this)
+    }
+
+    /**
+     * Binds the service.
+     * @param intent The intent.
+     * @return The binder.
+     */
+    override fun onBind(intent: Intent?): IBinder? {
+        return null
+    }
+
+    /**
+     * Cleans up resources when the service is destroyed.
+     */
+    override fun onDestroy() {
+        LogUtil.i(AppConfig.TAG, "CoreTestService is being destroyed, cancelling ${activeWorkers.size} active workers")
+        // cancel any active workers
+        val snapshot = ArrayList(activeWorkers)
+        snapshot.forEach { it.cancel() }
+        activeWorkers.clear()
+        NotificationHelper.stopForeground(this)
+        super.onDestroy()
+    }
+
+    /**
+     * Handles the start command for the service.
+     * @param intent The intent.
+     * @param flags The flags.
+     * @param startId The start ID.
+     * @return The start mode.
+     */
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        val message = intent?.serializable<TestServiceMessage>("content")
+        if (message == null) {
+            stopSelf(startId)
+            return START_NOT_STICKY
+        }
+
+        when (message.key) {
+            AppConfig.MSG_MEASURE_CONFIG_START -> handleMeasureStart(message, startId)
+            AppConfig.MSG_MEASURE_CONFIG_CANCEL -> handleMeasureCancel()
+            else -> { NotificationHelper.stopForeground(this); stopSelf(startId) }
+        }
+        return START_NOT_STICKY
+    }
+
+    private fun handleMeasureStart(message: TestServiceMessage, startId: Int) {
+        LogUtil.i(AppConfig.TAG, "CoreTestService starting worker   subscription ${message.subscriptionId}")
+
+        NotificationHelper.startForeground(
+            this,
+            NotificationChannelType.CORE_TEST,
+            getString(R.string.app_name),
+            getString(R.string.title_real_ping_all_server)
+        )
+
+        val guidsList = when {
+            message.serverGuids.isNotEmpty() -> message.serverGuids
+            message.subscriptionId.isNotEmpty() -> MmkvManager.decodeServerList(message.subscriptionId)
+            else -> MmkvManager.decodeAllServerList()
+        }
+
+        if (guidsList.isNotEmpty()) {
+            lateinit var worker: RealPingWorkerService
+            worker = RealPingWorkerService(
+                context = this,
+                guids = guidsList,
+                onEvent = { event -> handleWorkerEvent(event) { activeWorkers.remove(worker) }  }
+            )
+            activeWorkers.add(worker)
+            worker.start()
+        } else {
+            NotificationHelper.stopForeground(this)
+            stopSelf(startId)
+        }
+    }
+
+    private fun handleWorkerEvent(event: RealPingEvent, onWorkerDone: () -> Unit) {
+        when (event) {
+            is RealPingEvent.Progress -> {
+                NotificationHelper.updateNotification(
+                    channelType = NotificationChannelType.CORE_TEST,
+                    context = this,
+                    content = getString(R.string.connection_runing_task_left, event.text)
+                )
+                MessageUtil.sendMsg2UI(this, AppConfig.MSG_MEASURE_CONFIG_NOTIFY, event.text)
+            }
+            is RealPingEvent.Result -> {
+                MmkvManager.encodeServerTestDelayMillis(event.guid, event.delayMillis)
+                MessageUtil.sendMsg2UI(this, AppConfig.MSG_MEASURE_CONFIG_SUCCESS, event.guid)
+            }
+            is RealPingEvent.Finish -> {
+                MessageUtil.sendMsg2UI(this, AppConfig.MSG_MEASURE_CONFIG_FINISH, event.status)
+                onWorkerDone()
+                if (activeWorkers.isEmpty()) {
+                    NotificationHelper.stopForeground(this)
+                    stopSelf()
+                }
+            }
+        }
+    }
+
+    private fun handleMeasureCancel() {
+        LogUtil.i(AppConfig.TAG, "CoreTestService received cancel message, cancelling ${activeWorkers.size} active workers")
+        val snapshot = ArrayList(activeWorkers)
+        snapshot.forEach { it.cancel() }
+        activeWorkers.clear()
+        NotificationHelper.stopForeground(this)
+        stopSelf()
+    }
+}

V2rayNG/app/src/main/java/com/v2ray/ang/service/CoreVpnService.kt

@@ -23,14 +23,14 @@ import com.v2ray.ang.contracts.Tun2SocksControl
 import com.v2ray.ang.handler.MmkvManager
 import com.v2ray.ang.handler.NotificationManager
 import com.v2ray.ang.handler.SettingsManager
-import com.v2ray.ang.handler.V2RayServiceManager
+import com.v2ray.ang.core.CoreServiceManager
 import com.v2ray.ang.util.LogUtil
 import com.v2ray.ang.util.MyContextWrapper
 import com.v2ray.ang.util.Utils
 import java.lang.ref.SoftReference
 
 @SuppressLint("VpnServicePolicy")
-class V2RayVpnService : VpnService(), ServiceControl {
+class CoreVpnService : VpnService(), ServiceControl {
     private lateinit var mInterface: ParcelFileDescriptor
     private var isRunning = false
     private var tun2SocksService: Tun2SocksControl? = null
@@ -77,7 +77,7 @@ class V2RayVpnService : VpnService(), ServiceControl {
         LogUtil.i(AppConfig.TAG, "StartCore-VPN: Service created")
         val policy = StrictMode.ThreadPolicy.Builder().permitAll().build()
         StrictMode.setThreadPolicy(policy)
-        V2RayServiceManager.serviceControl = SoftReference(this)
+        CoreServiceManager.serviceControl = SoftReference(this)
     }
 
     override fun onRevoke() {
@@ -128,7 +128,7 @@ class V2RayVpnService : VpnService(), ServiceControl {
             LogUtil.e(AppConfig.TAG, "StartCore-VPN: Interface not initialized")
             return
         }
-        if (!V2RayServiceManager.startCoreLoop(mInterface)) {
+        if (!CoreServiceManager.startCoreLoop(mInterface)) {
             LogUtil.e(AppConfig.TAG, "StartCore-VPN: Failed to start core loop")
             stopAllService()
             return
@@ -361,7 +361,7 @@ class V2RayVpnService : VpnService(), ServiceControl {
         tun2SocksService?.stopTun2Socks()
         tun2SocksService = null
 
-        V2RayServiceManager.stopCoreLoop()
+        CoreServiceManager.stopCoreLoop()
 
         if (isForced) {
             //stopSelf has to be called ahead of mInterface.close(). otherwise v2ray core cannot be stooped

V2rayNG/app/src/main/java/com/v2ray/ang/service/QSTileService.kt

@@ -10,7 +10,7 @@ import android.service.quicksettings.TileService
 import androidx.core.content.ContextCompat
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.R
-import com.v2ray.ang.handler.V2RayServiceManager
+import com.v2ray.ang.core.CoreServiceManager
 import com.v2ray.ang.util.LogUtil
 import com.v2ray.ang.util.MessageUtil
 import com.v2ray.ang.util.Utils
@@ -29,7 +29,7 @@ class QSTileService : TileService() {
             qsTile?.label = getString(R.string.app_name)
         } else if (state == Tile.STATE_ACTIVE) {
             qsTile?.state = Tile.STATE_ACTIVE
-            qsTile?.label = V2RayServiceManager.getRunningServerName()
+            qsTile?.label = CoreServiceManager.getRunningServerName()
         }
 
         qsTile?.updateTile()
@@ -42,7 +42,7 @@ class QSTileService : TileService() {
     override fun onStartListening() {
         super.onStartListening()
 
-        if (V2RayServiceManager.isRunning()) {
+        if (CoreServiceManager.isRunning()) {
             setState(Tile.STATE_ACTIVE)
         } else {
             setState(Tile.STATE_INACTIVE)
@@ -75,11 +75,11 @@ class QSTileService : TileService() {
         super.onClick()
         when (qsTile.state) {
             Tile.STATE_INACTIVE -> {
-                V2RayServiceManager.startVServiceFromToggle(this)
+                CoreServiceManager.startVServiceFromToggle(this)
             }
 
             Tile.STATE_ACTIVE -> {
-                V2RayServiceManager.stopVService(this)
+                CoreServiceManager.stopVService(this)
             }
         }
     }

V2rayNG/app/src/main/java/com/v2ray/ang/service/RealPingWorkerService.kt

@@ -1,11 +1,10 @@
 package com.v2ray.ang.service
 
 import android.content.Context
-import com.v2ray.ang.AppConfig
+import com.v2ray.ang.dto.RealPingEvent
 import com.v2ray.ang.handler.SettingsManager
-import com.v2ray.ang.handler.V2RayNativeManager
-import com.v2ray.ang.handler.V2rayConfigManager
-import com.v2ray.ang.util.MessageUtil
+import com.v2ray.ang.core.CoreNativeManager
+import com.v2ray.ang.core.CoreConfigManager
 import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.CoroutineName
 import kotlinx.coroutines.CoroutineScope
@@ -23,11 +22,11 @@ import java.util.concurrent.atomic.AtomicInteger
 class RealPingWorkerService(
     private val context: Context,
     private val guids: List<String>,
-    private val onFinish: (status: String) -> Unit = {}
+    private val onEvent: (RealPingEvent) -> Unit = {}
 ) {
     private val job = SupervisorJob()
-    private val cpu = Runtime.getRuntime().availableProcessors().coerceAtLeast(1)
-    private val dispatcher = Executors.newFixedThreadPool(cpu * 4).asCoroutineDispatcher()
+    private val concurrency = SettingsManager.getRealPingConcurrency()
+    private val dispatcher = Executors.newFixedThreadPool(concurrency).asCoroutineDispatcher()
     private val scope = CoroutineScope(job + dispatcher + CoroutineName("RealPingBatchWorker"))
 
     private val runningCount = AtomicInteger(0)
@@ -40,11 +39,13 @@ class RealPingWorkerService(
                 runningCount.incrementAndGet()
                 try {
                     val result = startRealPing(guid)
-                    MessageUtil.sendMsg2UI(context, AppConfig.MSG_MEASURE_CONFIG_SUCCESS, Pair(guid, result))
+                    onEvent(RealPingEvent.Result(guid, result))
+                } catch (_: Throwable) {
+                    // ignore
                 } finally {
                     val count = totalCount.decrementAndGet()
                     val left = runningCount.decrementAndGet()
-                    MessageUtil.sendMsg2UI(context, AppConfig.MSG_MEASURE_CONFIG_NOTIFY, "$left / $count")
+                    onEvent(RealPingEvent.Progress("$left / $count"))
                 }
             }
         }
@@ -52,9 +53,9 @@ class RealPingWorkerService(
         scope.launch {
             try {
                 joinAll(*jobs.toTypedArray())
-                onFinish("0")
+                onEvent(RealPingEvent.Finish("0"))
             } catch (_: CancellationException) {
-                onFinish("-1")
+                onEvent(RealPingEvent.Finish("-1"))
             } finally {
                 close()
             }
@@ -75,11 +76,10 @@ class RealPingWorkerService(
 
     private fun startRealPing(guid: String): Long {
         val retFailure = -1L
-        val configResult = V2rayConfigManager.getV2rayConfig4Speedtest(context, guid)
+        val configResult = CoreConfigManager.getV2rayConfig4Speedtest(context, guid)
         if (!configResult.status) {
             return retFailure
         }
-        return V2RayNativeManager.measureOutboundDelay(configResult.content, SettingsManager.getDelayTestUrl())
+        return CoreNativeManager.measureOutboundDelay(configResult.content, SettingsManager.getDelayTestUrl())
     }
 }
-

V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayTestService.kt

@@ -1,89 +0,0 @@
-package com.v2ray.ang.service
-
-import android.app.Service
-import android.content.Intent
-import android.os.IBinder
-import com.v2ray.ang.AppConfig
-import com.v2ray.ang.AppConfig.MSG_MEASURE_CONFIG
-import com.v2ray.ang.AppConfig.MSG_MEASURE_CONFIG_CANCEL
-import com.v2ray.ang.dto.TestServiceMessage
-import com.v2ray.ang.extension.serializable
-import com.v2ray.ang.handler.MmkvManager
-import com.v2ray.ang.handler.V2RayNativeManager
-import com.v2ray.ang.util.MessageUtil
-import java.util.Collections
-
-class V2RayTestService : Service() {
-
-    // manage active batch workers so each batch is independent and cancellable
-    private val activeWorkers = Collections.synchronizedList(mutableListOf<RealPingWorkerService>())
-
-    /**
-     * Initializes the V2Ray environment.
-     */
-    override fun onCreate() {
-        super.onCreate()
-        V2RayNativeManager.initCoreEnv(this)
-    }
-
-    /**
-     * Binds the service.
-     * @param intent The intent.
-     * @return The binder.
-     */
-    override fun onBind(intent: Intent?): IBinder? {
-        return null
-    }
-
-    /**
-     * Cleans up resources when the service is destroyed.
-     */
-    override fun onDestroy() {
-        super.onDestroy()
-        // cancel any active workers
-        val snapshot = ArrayList(activeWorkers)
-        snapshot.forEach { it.cancel() }
-        activeWorkers.clear()
-    }
-
-    /**
-     * Handles the start command for the service.
-     * @param intent The intent.
-     * @param flags The flags.
-     * @param startId The start ID.
-     * @return The start mode.
-     */
-    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
-        val message = intent?.serializable<TestServiceMessage>("content") ?: return super.onStartCommand(intent, flags, startId)
-        when (message.key) {
-            MSG_MEASURE_CONFIG -> {
-                val guidsList = if (message.serverGuids.isNotEmpty()) {
-                    message.serverGuids
-                } else if (message.subscriptionId.isNotEmpty()) {
-                    MmkvManager.decodeServerList(message.subscriptionId)
-                } else {
-                    MmkvManager.decodeAllServerList()
-                }
-
-                if (guidsList.isNotEmpty()) {
-                    lateinit var worker: RealPingWorkerService
-                    worker = RealPingWorkerService(this, guidsList) { status ->
-                        // notify UI and remove the worker from active list when finished
-                        MessageUtil.sendMsg2UI(this@V2RayTestService, AppConfig.MSG_MEASURE_CONFIG_FINISH, status)
-                        activeWorkers.remove(worker)
-                    }
-                    activeWorkers.add(worker)
-                    worker.start()
-                }
-            }
-
-            MSG_MEASURE_CONFIG_CANCEL -> {
-                // cancel all running batch workers independently
-                val snapshot = ArrayList(activeWorkers)
-                snapshot.forEach { it.cancel() }
-                activeWorkers.clear()
-            }
-        }
-        return super.onStartCommand(intent, flags, startId)
-    }
-}

V2rayNG/app/src/main/java/com/v2ray/ang/ui/AboutActivity.kt

@@ -5,7 +5,7 @@ import com.v2ray.ang.AppConfig
 import com.v2ray.ang.BuildConfig
 import com.v2ray.ang.R
 import com.v2ray.ang.databinding.ActivityAboutBinding
-import com.v2ray.ang.handler.V2RayNativeManager
+import com.v2ray.ang.core.CoreNativeManager
 import com.v2ray.ang.util.Utils
 
 class AboutActivity : BaseActivity() {
@@ -42,7 +42,7 @@ class AboutActivity : BaseActivity() {
             Utils.openUri(this, AppConfig.APP_PRIVACY_POLICY)
         }
 
-        "v${BuildConfig.VERSION_NAME} (${V2RayNativeManager.getLibVersion()})".also {
+        "v${BuildConfig.VERSION_NAME} (${CoreNativeManager.getLibVersion()})".also {
             binding.tvVersion.text = it
         }
         BuildConfig.APPLICATION_ID.also {

V2rayNG/app/src/main/java/com/v2ray/ang/ui/CheckUpdateActivity.kt

@@ -13,7 +13,7 @@ import com.v2ray.ang.extension.toastError
 import com.v2ray.ang.extension.toastSuccess
 import com.v2ray.ang.handler.MmkvManager
 import com.v2ray.ang.handler.UpdateCheckerManager
-import com.v2ray.ang.handler.V2RayNativeManager
+import com.v2ray.ang.core.CoreNativeManager
 import com.v2ray.ang.util.LogUtil
 import com.v2ray.ang.util.Utils
 import kotlinx.coroutines.launch
@@ -36,7 +36,7 @@ class CheckUpdateActivity : BaseActivity() {
         }
         binding.checkPreRelease.isChecked = MmkvManager.decodeSettingsBool(AppConfig.PREF_CHECK_UPDATE_PRE_RELEASE, false)
 
-        "v${BuildConfig.VERSION_NAME} (${V2RayNativeManager.getLibVersion()})".also {
+        "v${BuildConfig.VERSION_NAME} (${CoreNativeManager.getLibVersion()})".also {
             binding.tvVersion.text = it
         }
 

V2rayNG/app/src/main/java/com/v2ray/ang/ui/GroupServerFragment.kt

@@ -181,6 +181,10 @@ class GroupServerFragment : BaseFragment<FragmentGroupServerBinding>(),
                 ownerActivity.startActivity(intent.setClass(ownerActivity, ServerGroupActivity::class.java))
             }
 
+            EConfigType.PROXYCHAIN -> {
+                ownerActivity.startActivity(intent.setClass(ownerActivity, ServerProxyChainActivity::class.java))
+            }
+
             else -> {
                 ownerActivity.startActivity(intent.setClass(ownerActivity, ServerActivity::class.java))
             }
@@ -265,7 +269,9 @@ class GroupServerFragment : BaseFragment<FragmentGroupServerBinding>(),
         }
 
         override fun onShare(guid: String, profile: ProfileItem, position: Int, more: Boolean) {
-            val isCustom = profile.configType == EConfigType.CUSTOM || profile.configType == EConfigType.POLICYGROUP
+            val isCustom = profile.configType == EConfigType.CUSTOM
+                    || profile.configType == EConfigType.POLICYGROUP
+                    || profile.configType == EConfigType.PROXYCHAIN
 
             val (shareOptions, skip) = if (more) {
                 val options = if (isCustom) share_method_more.asList().takeLast(3) else share_method_more.asList()

V2rayNG/app/src/main/java/com/v2ray/ang/ui/MainActivity.kt

@@ -32,7 +32,7 @@ import com.v2ray.ang.handler.MmkvManager
 import com.v2ray.ang.handler.SettingsChangeManager
 import com.v2ray.ang.handler.SettingsManager
 import com.v2ray.ang.handler.SubscriptionUpdater
-import com.v2ray.ang.handler.V2RayServiceManager
+import com.v2ray.ang.core.CoreServiceManager
 import com.v2ray.ang.util.LogUtil
 import com.v2ray.ang.util.Utils
 import com.v2ray.ang.viewmodel.MainViewModel
@@ -137,7 +137,7 @@ class MainActivity : HelperBaseActivity(), NavigationView.OnNavigationItemSelect
         applyRunningState(isLoading = true, isRunning = false)
 
         if (mainViewModel.isRunning.value == true) {
-            V2RayServiceManager.stopVService(this)
+            CoreServiceManager.stopVService(this)
         } else if (SettingsManager.isVpnMode()) {
             val intent = VpnService.prepare(this)
             if (intent == null) {
@@ -164,12 +164,12 @@ class MainActivity : HelperBaseActivity(), NavigationView.OnNavigationItemSelect
             toast(R.string.title_file_chooser)
             return
         }
-        V2RayServiceManager.startVService(this)
+        CoreServiceManager.startVService(this)
     }
 
     fun restartV2Ray() {
         if (mainViewModel.isRunning.value == true) {
-            V2RayServiceManager.stopVService(this)
+            CoreServiceManager.stopVService(this)
         }
         lifecycleScope.launch {
             delay(500)
@@ -254,6 +254,11 @@ class MainActivity : HelperBaseActivity(), NavigationView.OnNavigationItemSelect
             true
         }
 
+        R.id.import_manually_proxy_chain -> {
+            importManually(EConfigType.PROXYCHAIN.value)
+            true
+        }
+
         R.id.import_manually_vmess -> {
             importManually(EConfigType.VMESS.value)
             true
@@ -356,6 +361,12 @@ class MainActivity : HelperBaseActivity(), NavigationView.OnNavigationItemSelect
                     .putExtra("subscriptionId", mainViewModel.subscriptionId)
                     .setClass(this, ServerGroupActivity::class.java)
             )
+        } else if (createConfigType == EConfigType.PROXYCHAIN.value) {
+            startActivity(
+                Intent()
+                    .putExtra("subscriptionId", mainViewModel.subscriptionId)
+                    .setClass(this, ServerProxyChainActivity::class.java)
+            )
         } else {
             startActivity(
                 Intent()

V2rayNG/app/src/main/java/com/v2ray/ang/ui/ScStartActivity.kt

@@ -2,7 +2,7 @@ package com.v2ray.ang.ui
 
 import android.os.Bundle
 import com.v2ray.ang.R
-import com.v2ray.ang.handler.V2RayServiceManager
+import com.v2ray.ang.core.CoreServiceManager
 
 class ScStartActivity : BaseActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -11,8 +11,8 @@ class ScStartActivity : BaseActivity() {
 
         setContentView(R.layout.activity_none)
 
-        if (!V2RayServiceManager.isRunning()) {
-            V2RayServiceManager.startVServiceFromToggle(this)
+        if (!CoreServiceManager.isRunning()) {
+            CoreServiceManager.startVServiceFromToggle(this)
         }
         finish()
     }

V2rayNG/app/src/main/java/com/v2ray/ang/ui/ScStopActivity.kt

@@ -2,7 +2,7 @@ package com.v2ray.ang.ui
 
 import android.os.Bundle
 import com.v2ray.ang.R
-import com.v2ray.ang.handler.V2RayServiceManager
+import com.v2ray.ang.core.CoreServiceManager
 
 class ScStopActivity : BaseActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -11,8 +11,8 @@ class ScStopActivity : BaseActivity() {
 
         setContentView(R.layout.activity_none)
 
-        if (V2RayServiceManager.isRunning()) {
-            V2RayServiceManager.stopVService(this)
+        if (CoreServiceManager.isRunning()) {
+            CoreServiceManager.stopVService(this)
         }
         finish()
     }

V2rayNG/app/src/main/java/com/v2ray/ang/ui/ScSwitchActivity.kt

@@ -2,7 +2,7 @@ package com.v2ray.ang.ui
 
 import android.os.Bundle
 import com.v2ray.ang.R
-import com.v2ray.ang.handler.V2RayServiceManager
+import com.v2ray.ang.core.CoreServiceManager
 
 class ScSwitchActivity : BaseActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -11,10 +11,10 @@ class ScSwitchActivity : BaseActivity() {
 
         setContentView(R.layout.activity_none)
 
-        if (V2RayServiceManager.isRunning()) {
-            V2RayServiceManager.stopVService(this)
+        if (CoreServiceManager.isRunning()) {
+            CoreServiceManager.stopVService(this)
         } else {
-            V2RayServiceManager.startVServiceFromToggle(this)
+            CoreServiceManager.startVServiceFromToggle(this)
         }
         finish()
     }

V2rayNG/app/src/main/java/com/v2ray/ang/ui/ServerActivity.kt

@@ -148,14 +148,12 @@ class ServerActivity : BaseActivity() {
 
         val layoutId = when (config?.configType ?: createConfigType) {
             EConfigType.VMESS -> R.layout.activity_server_vmess
-            EConfigType.CUSTOM -> null
             EConfigType.SHADOWSOCKS -> R.layout.activity_server_shadowsocks
             EConfigType.SOCKS, EConfigType.HTTP -> R.layout.activity_server_socks
             EConfigType.VLESS -> R.layout.activity_server_vless
             EConfigType.TROJAN -> R.layout.activity_server_trojan
             EConfigType.WIREGUARD -> R.layout.activity_server_wireguard
             EConfigType.HYSTERIA2 -> R.layout.activity_server_hysteria2
-            EConfigType.POLICYGROUP -> null
             else -> null
         } ?: return
         setContentViewWithToolbar(layoutId, showHomeAsUp = true, title = (config?.configType ?: createConfigType).toString())

V2rayNG/app/src/main/java/com/v2ray/ang/ui/ServerProxyChainActivity.kt

@@ -0,0 +1,228 @@
+package com.v2ray.ang.ui
+
+import android.os.Bundle
+import android.text.TextUtils
+import android.view.Menu
+import android.view.MenuItem
+import androidx.appcompat.app.AlertDialog
+import androidx.recyclerview.widget.ItemTouchHelper
+import androidx.recyclerview.widget.LinearLayoutManager
+import com.v2ray.ang.AppConfig
+import com.v2ray.ang.R
+import com.v2ray.ang.contracts.BaseAdapterListener
+import com.v2ray.ang.databinding.ActivityServerProxyChainBinding
+import com.v2ray.ang.dto.ProfileItem
+import com.v2ray.ang.enums.EConfigType
+import com.v2ray.ang.extension.toast
+import com.v2ray.ang.extension.toastSuccess
+import com.v2ray.ang.helper.SimpleItemTouchHelperCallback
+import com.v2ray.ang.handler.MmkvManager
+import com.v2ray.ang.handler.SettingsManager
+import com.v2ray.ang.util.Utils
+
+class ServerProxyChainActivity : BaseActivity() {
+    private val binding by lazy { ActivityServerProxyChainBinding.inflate(layoutInflater) }
+    private val editGuid by lazy { intent.getStringExtra("guid").orEmpty() }
+    private val isRunning by lazy {
+        intent.getBooleanExtra("isRunning", false)
+                && editGuid.isNotEmpty()
+                && editGuid == MmkvManager.getSelectServer()
+    }
+    private val subscriptionId by lazy {
+        intent.getStringExtra("subscriptionId")
+    }
+    private lateinit var memberAdapter: ServerProxyChainMemberAdapter
+
+    private var allRemarks: List<String> = emptyList()
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentViewWithToolbar(binding.root, showHomeAsUp = true, title = EConfigType.PROXYCHAIN.toString())
+
+        loadAvailableRemarks()
+        setupRecycler()
+        binding.fabAddProxyChainMember.setOnClickListener {
+            addMemberRow()
+        }
+
+        val config = MmkvManager.decodeServerConfig(editGuid)
+        if (config != null) {
+            bindingServer(config)
+        } else {
+            clearServer()
+        }
+    }
+
+    private fun loadAvailableRemarks() {
+        allRemarks = MmkvManager.decodeAllServerList()
+            .asSequence()
+            .mapNotNull { guid -> MmkvManager.decodeServerConfig(guid) }
+            .filter { profile ->
+                profile.configType != EConfigType.CUSTOM
+                        && profile.configType != EConfigType.POLICYGROUP
+                        && profile.configType != EConfigType.PROXYCHAIN
+            }
+            .map { it.remarks.trim() }
+            .filter { it.isNotEmpty() }
+            .distinct()
+            .toList()
+    }
+
+    private fun setupRecycler() {
+        memberAdapter = ServerProxyChainMemberAdapter(
+            members = mutableListOf(),
+            suggestions = allRemarks,
+            adapterListener = ActivityAdapterListener()
+        )
+        binding.recyclerProxyChainMembers.layoutManager = LinearLayoutManager(this)
+        binding.recyclerProxyChainMembers.adapter = memberAdapter
+        ItemTouchHelper(SimpleItemTouchHelperCallback(memberAdapter)).attachToRecyclerView(binding.recyclerProxyChainMembers)
+    }
+
+    private fun bindingServer(config: ProfileItem): Boolean {
+        binding.etRemarks.text = Utils.getEditable(config.remarks)
+        val rows = parseChainMembers(config.proxyChainProfiles)
+        memberAdapter.replaceAll(rows)
+        if (rows.isEmpty()) {
+            memberAdapter.addRow()
+        }
+        return true
+    }
+
+    private fun clearServer(): Boolean {
+        binding.etRemarks.text = null
+        memberAdapter.replaceAll(listOf("", ""))
+        return true
+    }
+
+    private fun saveServer(): Boolean {
+        if (TextUtils.isEmpty(binding.etRemarks.text.toString())) {
+            toast(R.string.server_lab_remarks)
+            return false
+        }
+
+        val chainMembers = memberAdapter.getMembers().map { it.trim() }.filter { it.isNotEmpty() }
+        if (chainMembers.size != memberAdapter.getMembers().size) {
+            toast(R.string.server_proxy_chain_members_unselected)
+            return false
+        }
+        if (chainMembers.size < 2) {
+            toast(R.string.server_proxy_chain_members_insufficient)
+            return false
+        }
+
+        val invalidMembers = chainMembers.filter { member ->
+            val profile = SettingsManager.getServerViaRemarks(member)
+            profile == null
+                    || profile.configType == EConfigType.CUSTOM
+                    || profile.configType == EConfigType.POLICYGROUP
+                    || profile.configType == EConfigType.PROXYCHAIN
+        }
+        if (invalidMembers.isNotEmpty()) {
+            toast(getString(R.string.server_proxy_chain_members_invalid, invalidMembers.joinToString(", ")))
+            return false
+        }
+
+        val config = MmkvManager.decodeServerConfig(editGuid) ?: ProfileItem.create(EConfigType.PROXYCHAIN)
+        config.remarks = binding.etRemarks.text.toString().trim()
+        config.proxyChainProfiles = chainMembers.joinToString(",")
+        config.description = chainMembers.joinToString(" -> ")
+
+        if (config.subscriptionId.isEmpty() && !subscriptionId.isNullOrEmpty()) {
+            config.subscriptionId = subscriptionId.orEmpty()
+        }
+
+        MmkvManager.encodeServerConfig(editGuid, config)
+        toastSuccess(R.string.toast_success)
+        finish()
+        return true
+    }
+
+    private fun deleteServer(): Boolean {
+        if (editGuid.isNotEmpty()) {
+            if (editGuid != MmkvManager.getSelectServer()) {
+                if (MmkvManager.decodeSettingsBool(AppConfig.PREF_CONFIRM_REMOVE)) {
+                    AlertDialog.Builder(this).setMessage(R.string.del_config_comfirm)
+                        .setPositiveButton(android.R.string.ok) { _, _ ->
+                            MmkvManager.removeServer(editGuid)
+                            finish()
+                        }
+                        .setNegativeButton(android.R.string.cancel) { _, _ ->
+                            // do nothing
+                        }
+                        .show()
+                } else {
+                    MmkvManager.removeServer(editGuid)
+                    finish()
+                }
+            } else {
+                toast(R.string.toast_action_not_allowed)
+            }
+        }
+        return true
+    }
+
+    private fun addMemberRow() {
+        if (allRemarks.isEmpty()) {
+            toast(R.string.toast_none_data)
+            return
+        }
+        memberAdapter.addRow()
+    }
+
+    private fun parseChainMembers(raw: String?): List<String> {
+        return raw.orEmpty()
+            .split(",")
+            .map { it.trim() }
+            .filter { it.isNotEmpty() }
+    }
+
+    private inner class ActivityAdapterListener : BaseAdapterListener {
+        override fun onEdit(guid: String, position: Int) {
+            // Row selection is handled directly by AutoCompleteTextView in the adapter.
+        }
+
+        override fun onRemove(guid: String, position: Int) {
+            memberAdapter.removeRow(position)
+        }
+
+        override fun onShare(url: String) {
+        }
+
+        override fun onRefreshData() {
+        }
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+        menuInflater.inflate(R.menu.action_server, menu)
+        val delButton = menu.findItem(R.id.del_config)
+        val saveButton = menu.findItem(R.id.save_config)
+
+        if (editGuid.isNotEmpty()) {
+            if (isRunning) {
+                delButton?.isVisible = false
+                saveButton?.isVisible = false
+            }
+        } else {
+            delButton?.isVisible = false
+        }
+
+        return super.onCreateOptionsMenu(menu)
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem) = when (item.itemId) {
+        R.id.del_config -> {
+            deleteServer()
+            true
+        }
+
+        R.id.save_config -> {
+            saveServer()
+            true
+        }
+
+        else -> super.onOptionsItemSelected(item)
+    }
+}
+
+

V2rayNG/app/src/main/java/com/v2ray/ang/ui/ServerProxyChainMemberAdapter.kt

@@ -0,0 +1,136 @@
+package com.v2ray.ang.ui
+
+import android.graphics.Color
+import android.widget.ArrayAdapter
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import com.v2ray.ang.contracts.BaseAdapterListener
+import com.v2ray.ang.databinding.ItemRecyclerProxyChainMemberBinding
+import com.v2ray.ang.helper.ItemTouchHelperAdapter
+import com.v2ray.ang.helper.ItemTouchHelperViewHolder
+import java.util.Collections
+
+class ServerProxyChainMemberAdapter(
+    private val members: MutableList<String>,
+    private val suggestions: List<String>,
+    private val adapterListener: BaseAdapterListener?
+) : RecyclerView.Adapter<ServerProxyChainMemberAdapter.MemberViewHolder>(), ItemTouchHelperAdapter {
+
+    override fun getItemCount(): Int = members.size
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MemberViewHolder {
+        return MemberViewHolder(
+            ItemRecyclerProxyChainMemberBinding.inflate(
+                LayoutInflater.from(parent.context),
+                parent,
+                false
+            )
+        )
+    }
+
+    override fun onBindViewHolder(holder: MemberViewHolder, position: Int) {
+        val adapterPos = holder.bindingAdapterPosition.takeIf { it != RecyclerView.NO_POSITION } ?: position
+        val value = members[position]
+        holder.binding.tvMemberIndex.text = (position + 1).toString()
+
+        val dropdownAdapter = ArrayAdapter(
+            holder.itemView.context,
+            android.R.layout.simple_dropdown_item_1line,
+            suggestions
+        )
+        holder.binding.spMemberRemark.setAdapter(dropdownAdapter)
+        holder.binding.spMemberRemark.threshold = 0
+        holder.binding.spMemberRemark.setText(value, false)
+
+        holder.binding.spMemberRemark.setOnItemClickListener { _, _, selectedIndex, _ ->
+            if (adapterPos in members.indices) {
+                members[adapterPos] = suggestions[selectedIndex].trim()
+                adapterListener?.onRefreshData()
+            }
+        }
+        holder.binding.spMemberRemark.onFocusChangeListener = View.OnFocusChangeListener { _, hasFocus ->
+            if (hasFocus) return@OnFocusChangeListener
+            val text = holder.binding.spMemberRemark.text?.toString().orEmpty().trim()
+            if (adapterPos in members.indices && members[adapterPos] != text) {
+                members[adapterPos] = text
+                adapterListener?.onRefreshData()
+            }
+        }
+        holder.binding.spMemberRemark.setOnClickListener { holder.binding.spMemberRemark.showDropDown() }
+        holder.binding.btnMemberDropdown.setOnClickListener {
+            holder.binding.spMemberRemark.requestFocus()
+            holder.binding.spMemberRemark.showDropDown()
+        }
+        holder.itemView.setOnClickListener { holder.binding.spMemberRemark.showDropDown() }
+
+        holder.binding.layoutRemove.setOnClickListener {
+            val removePos = holder.bindingAdapterPosition
+            if (removePos != RecyclerView.NO_POSITION) {
+                adapterListener?.onRemove("", removePos)
+            }
+        }
+    }
+
+    fun addRow() {
+        members.add("")
+        notifyItemInserted(members.lastIndex)
+        adapterListener?.onRefreshData()
+    }
+
+    fun removeRow(position: Int) {
+        if (position < 0 || position >= members.size) return
+        members.removeAt(position)
+        notifyItemRemoved(position)
+        notifyItemRangeChanged(position, members.size - position)
+        adapterListener?.onRefreshData()
+    }
+
+    fun setRemark(position: Int, remark: String) {
+        if (position < 0 || position >= members.size) return
+        members[position] = remark
+        notifyItemChanged(position)
+        adapterListener?.onRefreshData()
+    }
+
+    fun replaceAll(newMembers: List<String>) {
+        members.clear()
+        members.addAll(newMembers)
+        notifyDataSetChanged()
+        adapterListener?.onRefreshData()
+    }
+
+    fun getMembers(): List<String> = members.toList()
+
+    override fun onItemMove(fromPosition: Int, toPosition: Int): Boolean {
+        if (fromPosition == toPosition) return true
+        Collections.swap(members, fromPosition, toPosition)
+        notifyItemMoved(fromPosition, toPosition)
+        notifyItemChanged(fromPosition)
+        notifyItemChanged(toPosition)
+        return true
+    }
+
+    override fun onItemMoveCompleted() {
+        adapterListener?.onRefreshData()
+    }
+
+    override fun onItemDismiss(position: Int) {
+        // Swipe-to-dismiss disabled for this adapter.
+    }
+
+    class MemberViewHolder(val binding: ItemRecyclerProxyChainMemberBinding) :
+        BaseViewHolder(binding.root), ItemTouchHelperViewHolder
+
+    open class BaseViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        fun onItemSelected() {
+            itemView.setBackgroundColor(Color.LTGRAY)
+        }
+
+        fun onItemClear() {
+            itemView.setBackgroundColor(Color.TRANSPARENT)
+        }
+    }
+}
+

V2rayNG/app/src/main/java/com/v2ray/ang/util/MessageUtil.kt

@@ -3,9 +3,11 @@ package com.v2ray.ang.util
 import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
+import android.os.Build
+import androidx.core.content.ContextCompat
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.dto.TestServiceMessage
-import com.v2ray.ang.service.V2RayTestService
+import com.v2ray.ang.service.CoreTestService
 import java.io.Serializable
 
 object MessageUtil {
@@ -42,9 +44,26 @@ object MessageUtil {
     fun sendMsg2TestService(ctx: Context, message: TestServiceMessage) {
         try {
             val intent = Intent()
-            intent.component = ComponentName(ctx, V2RayTestService::class.java)
+            intent.component = ComponentName(ctx, CoreTestService::class.java)
             intent.putExtra("content", message)
-            ctx.startService(intent)
+            when (message.key) {
+                AppConfig.MSG_MEASURE_CONFIG_START -> {
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                        ContextCompat.startForegroundService(ctx, intent)
+                    } else {
+                        ctx.startService(intent)
+                    }
+                }
+
+                AppConfig.MSG_MEASURE_CONFIG_CANCEL -> {
+                    // Do not wake up service just to cancel; stop only if it is already running.
+                    ctx.stopService(intent)
+                }
+
+                else -> {
+                    ctx.startService(intent)
+                }
+            }
         } catch (e: Exception) {
             LogUtil.e(AppConfig.TAG, "Failed to send message to test service", e)
         }

V2rayNG/app/src/main/java/com/v2ray/ang/util/NotificationHelper.kt

@@ -0,0 +1,162 @@
+package com.v2ray.ang.util
+
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.Service
+import android.content.Context
+import android.os.Build
+import androidx.core.app.NotificationCompat
+import com.v2ray.ang.R
+import com.v2ray.ang.enums.NotificationChannelType
+
+/**
+ * Unified notification helper for different notification channels.
+ * Supports both regular notifications and foreground service notifications.
+ *
+ * Performance: NotificationManager is cached. Builder is created once per update.
+ * Safe for high-frequency updates (100+ times/second).
+ */
+object NotificationHelper {
+
+    // Cached instances for performance
+    private var cachedNotificationManager: NotificationManager? = null
+    private val builderCache = mutableMapOf<Int, NotificationCompat.Builder>()
+
+    /**
+     * Notify with a regular notification (non-foreground).
+     *
+     * @param channelType The notification channel type (defines channelId, notificationId, etc.)
+     * @param context The context for building the notification
+     * @param title The notification title
+     * @param content The notification content text
+     */
+    fun notify(
+        channelType: NotificationChannelType,
+        context: Context,
+        title: String,
+        content: String
+    ) {
+        ensureChannelCreated(channelType, context)
+        val notificationManager = getNotificationManager(context)
+        val builder = buildNotificationBuilder(channelType, context, title, content)
+        notificationManager.notify(channelType.notificationId, builder.build())
+    }
+
+    /**
+     * Update an existing notification's content.
+     * Optimized for high-frequency updates (100+/sec).
+     * Reuses cached Builder to minimize allocation overhead.
+     *
+     * @param channelType The notification channel type
+     * @param context The context
+     * @param content The new content text
+     */
+    fun updateNotification(
+        channelType: NotificationChannelType,
+        context: Context,
+        content: String
+    ) {
+        val notificationManager = getNotificationManager(context)
+
+        // Get or create builder from cache
+        val builder = builderCache.getOrPut(channelType.notificationId) {
+            buildNotificationBuilder(channelType, context, "", content)
+        }
+
+        // Update only the content text (fast operation)
+        builder.setContentText(content)
+        notificationManager.notify(channelType.notificationId, builder.build())
+    }
+
+    /**
+     * Start a foreground service with a notification.
+     *
+     * @param service The service to set as foreground
+     * @param channelType The notification channel type
+     * @param title The notification title
+     * @param content The notification content text
+     */
+    fun startForeground(
+        service: Service,
+        channelType: NotificationChannelType,
+        title: String,
+        content: String
+    ) {
+        ensureChannelCreated(channelType, service)
+        val builder = buildNotificationBuilder(channelType, service, title, content)
+        service.startForeground(channelType.notificationId, builder.build())
+    }
+
+    /**
+     * Stop the foreground notification for a service.
+     *
+     * @param service The service to stop foreground on
+     */
+    fun stopForeground(service: Service) {
+        service.stopForeground(Service.STOP_FOREGROUND_REMOVE)
+    }
+
+    /**
+     * Cancel a notification and clean up cached builder.
+     *
+     * @param channelType The notification channel type
+     * @param context The context
+     */
+    fun cancel(
+        channelType: NotificationChannelType,
+        context: Context
+    ) {
+        getNotificationManager(context).cancel(channelType.notificationId)
+        builderCache.remove(channelType.notificationId)  // Clean up cache
+    }
+
+    // ====== Private helper methods ======
+
+    private fun getNotificationManager(context: Context): NotificationManager {
+        if (cachedNotificationManager == null) {
+            cachedNotificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+        }
+        return cachedNotificationManager!!
+    }
+
+    private fun ensureChannelCreated(channelType: NotificationChannelType, context: Context) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return
+
+        val notificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+        if (notificationManager.getNotificationChannel(channelType.channelId) != null) return
+
+        val channel = NotificationChannel(
+            channelType.channelId,
+            channelType.channelName,
+            NotificationManager.IMPORTANCE_LOW
+        ).apply {
+            lockscreenVisibility = Notification.VISIBILITY_PRIVATE
+        }
+        notificationManager.createNotificationChannel(channel)
+    }
+
+    private fun buildNotificationBuilder(
+        channelType: NotificationChannelType,
+        context: Context,
+        title: String,
+        content: String
+    ): NotificationCompat.Builder {
+        val channelId = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            channelType.channelId
+        } else {
+            ""
+        }
+
+        val displayTitle = title.ifEmpty { context.getString(R.string.app_name) }
+        return NotificationCompat.Builder(context, channelId)
+            .setSmallIcon(R.drawable.ic_stat_name)
+            .setContentTitle(displayTitle)
+            .setContentText(content)
+            .setOngoing(false)
+            .setOnlyAlertOnce(true)
+            .setPriority(NotificationCompat.PRIORITY_LOW)
+            .setCategory(NotificationCompat.CATEGORY_SERVICE)
+    }
+}
+

V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/MainViewModel.kt

@@ -222,7 +222,7 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
             MessageUtil.sendMsg2TestService(
                 getApplication(),
                 TestServiceMessage(
-                    key = AppConfig.MSG_MEASURE_CONFIG,
+                    key = AppConfig.MSG_MEASURE_CONFIG_START,
                     subscriptionId = subscriptionId,
                     serverGuids = if (keywordFilter.isNotEmpty()) serversCache.map { it.guid } else emptyList()
                 )
@@ -470,9 +470,8 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
                 }
 
                 AppConfig.MSG_MEASURE_CONFIG_SUCCESS -> {
-                    val resultPair = intent.serializable<Pair<String, Long>>("content") ?: return
-                    MmkvManager.encodeServerTestDelayMillis(resultPair.first, resultPair.second)
-                    updateListAction.value = getPosition(resultPair.first)
+                    val content = intent.getStringExtra("content")
+                    updateListAction.value = getPosition(content?: "")
                 }
 
                 AppConfig.MSG_MEASURE_CONFIG_NOTIFY -> {

V2rayNG/app/src/main/res/layout/activity_server_proxy_chain.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:fitsSystemWindows="true"
+    tools:context=".ui.ServerProxyChainActivity">
+
+    <androidx.core.widget.NestedScrollView
+        android:id="@+id/main_content"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_margin="@dimen/padding_spacing_dp16"
+                android:orientation="vertical">
+
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="@string/server_lab_remarks"
+                    android:textAppearance="@style/TextAppearance.AppCompat.Subhead" />
+
+                <EditText
+                    android:id="@+id/et_remarks"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="@dimen/padding_spacing_dp8"
+                    android:hint="@string/server_lab_remarks"
+                    android:inputType="text" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_margin="@dimen/padding_spacing_dp16"
+                android:orientation="vertical">
+
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="@string/server_proxy_chain_members"
+                    android:textAppearance="@style/TextAppearance.AppCompat.Subhead" />
+            </LinearLayout>
+
+            <androidx.recyclerview.widget.RecyclerView
+                android:id="@+id/recycler_proxy_chain_members"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:nestedScrollingEnabled="false"
+                tools:listitem="@layout/item_recycler_proxy_chain_member" />
+
+            <com.google.android.material.floatingactionbutton.FloatingActionButton
+                android:id="@+id/fab_add_proxy_chain_member"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="end"
+                android:layout_margin="@dimen/padding_spacing_dp16"
+                android:contentDescription="@string/menu_item_add_config"
+                android:src="@drawable/ic_add_24dp" />
+
+        </LinearLayout>
+    </androidx.core.widget.NestedScrollView>
+</RelativeLayout>
+

V2rayNG/app/src/main/res/layout/item_recycler_proxy_chain_member.xml

@@ -0,0 +1,84 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/item_bg"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:gravity="center_vertical">
+
+    <LinearLayout
+        android:id="@+id/info_container"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:background="?attr/selectableItemBackground"
+        android:clickable="true"
+        android:focusable="true"
+        android:gravity="center"
+        android:orientation="horizontal"
+        android:padding="@dimen/padding_spacing_dp8">
+
+        <LinearLayout
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:gravity="center_vertical"
+            android:orientation="horizontal"
+            android:padding="@dimen/padding_spacing_dp8">
+
+            <TextView
+                android:id="@+id/tv_member_index"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginEnd="@dimen/padding_spacing_dp8"
+                android:textAppearance="@style/TextAppearance.AppCompat.Subhead" />
+
+            <AutoCompleteTextView
+                android:id="@+id/sp_member_remark"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:ellipsize="end"
+                android:hint="@string/server_proxy_chain_member_unselected"
+                android:imeOptions="actionDone"
+                android:inputType="text"
+                android:maxLines="1"
+                android:textAppearance="@style/TextAppearance.AppCompat.Small"
+                tools:ignore="NestedWeights" />
+
+            <ImageView
+                android:id="@+id/btn_member_dropdown"
+                android:layout_width="@dimen/image_size_dp24"
+                android:layout_height="@dimen/image_size_dp24"
+                android:layout_marginStart="@dimen/padding_spacing_dp8"
+                android:background="?attr/selectableItemBackgroundBorderless"
+                android:clickable="true"
+                android:contentDescription="@string/server_proxy_chain_pick_members"
+                android:focusable="true"
+                app:srcCompat="@drawable/ic_arrow_drop_down" />
+        </LinearLayout>
+
+        <LinearLayout
+            android:id="@+id/layout_remove"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            android:clickable="true"
+            android:contentDescription="@string/menu_item_del_config"
+            android:focusable="true"
+            android:gravity="center"
+            android:orientation="vertical"
+            android:padding="@dimen/padding_spacing_dp8">
+
+            <ImageView
+                android:layout_width="@dimen/image_size_dp24"
+                android:layout_height="@dimen/image_size_dp24"
+                android:importantForAccessibility="no"
+                app:srcCompat="@drawable/ic_delete_24dp" />
+
+        </LinearLayout>
+
+    </LinearLayout>
+</LinearLayout>
+

V2rayNG/app/src/main/res/menu/menu_main.xml

@@ -28,6 +28,10 @@
                 android:id="@+id/import_manually_policy_group"
                 android:title="@string/menu_item_import_config_policy_group"
                 app:showAsAction="never" />
+            <item
+                android:id="@+id/import_manually_proxy_chain"
+                android:title="@string/menu_item_import_config_proxy_chain"
+                app:showAsAction="never" />
             <item
                 android:id="@+id/import_manually_vmess"
                 android:title="@string/menu_item_import_config_manually_vmess"

V2rayNG/app/src/main/res/values-ar/strings.xml

@@ -30,6 +30,7 @@
     <string name="menu_item_import_config_clipboard">استيراد التكوين من الحافظة</string>
     <string name="menu_item_import_config_local">Import config from locally</string>
     <string name="menu_item_import_config_policy_group">Add [Policy group]</string>
+    <string name="menu_item_import_config_proxy_chain">Add [Proxy chain]</string>
     <string name="menu_item_import_config_manually_vmess">الكتابة يدويًا [VMess]</string>
     <string name="menu_item_import_config_manually_vless">الكتابة يدويًا [VLESS]</string>
     <string name="menu_item_import_config_manually_ss">الكتابة يدويًا [Shadowsocks]</string>
@@ -210,6 +211,7 @@
 
     <string name="title_pref_delay_test_url">True delay test url </string>
     <string name="summary_pref_delay_test_url">Url</string>
+    <string name="title_pref_real_ping_concurrency">True delay test concurrency</string>
 
     <string name="title_pref_ip_api_url">Current connection info test url</string>
     <string name="summary_pref_ip_api_url">Url</string>
@@ -376,6 +378,12 @@
     <string name="title_policy_group_type">Policy group type</string>
     <string name="title_policy_group_subscription_id">From subscription group</string>
     <string name="title_policy_group_subscription_filter">Remarks regular filter</string>
+    <string name="server_proxy_chain_members">اعضاء سلسلة الوكيل</string>
+    <string name="server_proxy_chain_pick_members">اضغط هنا لاختيار عضو</string>
+    <string name="server_proxy_chain_member_unselected">اختر عضوا</string>
+    <string name="server_proxy_chain_members_unselected">يرجى اختيار remark لكل صف في السلسلة</string>
+    <string name="server_proxy_chain_members_insufficient">عدد الاعضاء غير كاف</string>
+    <string name="server_proxy_chain_members_invalid">اعضاء سلسلة غير صالحين: %1$s</string>
 
     <!-- BackupActivity -->
     <string name="title_configuration_backup_restore">Backup &amp; Restore</string>

V2rayNG/app/src/main/res/values-bn/strings.xml

@@ -30,6 +30,7 @@
     <string name="menu_item_import_config_clipboard">ক্লিপবোর্ড থেকে কনফিগারেশন আমদানি করুন</string>
     <string name="menu_item_import_config_local">Import config from locally</string>
     <string name="menu_item_import_config_policy_group">Add [Policy group]</string>
+    <string name="menu_item_import_config_proxy_chain">Add [Proxy chain]</string>
     <string name="menu_item_import_config_manually_vmess">ম্যানুয়ালি টাইপ করুন [VMess]</string>
     <string name="menu_item_import_config_manually_vless">ম্যানুয়ালি টাইপ করুন [VLESS]</string>
     <string name="menu_item_import_config_manually_ss">ম্যানুয়ালি টাইপ করুন [Shadowsocks]</string>
@@ -210,6 +211,7 @@
 
     <string name="title_pref_delay_test_url">সঠিক বিলম্ব পরীক্ষা ইউআরএল </string>
     <string name="summary_pref_delay_test_url">ইউআরএল</string>
+    <string name="title_pref_real_ping_concurrency">True delay test concurrency</string>
 
     <string name="title_pref_ip_api_url">Current connection info test url</string>
     <string name="summary_pref_ip_api_url">Url</string>
@@ -375,6 +377,12 @@
     <string name="title_policy_group_type">Policy group type</string>
     <string name="title_policy_group_subscription_id">From subscription group</string>
     <string name="title_policy_group_subscription_filter">Remarks regular filter</string>
+    <string name="server_proxy_chain_members">Proxy chain members</string>
+    <string name="server_proxy_chain_pick_members">Tap here to pick member</string>
+    <string name="server_proxy_chain_member_unselected">Select a member</string>
+    <string name="server_proxy_chain_members_unselected">Please select member for each chain row</string>
+    <string name="server_proxy_chain_members_insufficient">Insufficient members</string>
+    <string name="server_proxy_chain_members_invalid">Invalid chain members: %1$s</string>
 
     <!-- BackupActivity -->
     <string name="title_configuration_backup_restore">Backup &amp; Restore</string>

V2rayNG/app/src/main/res/values-bqi-rIR/strings.xml

@@ -30,6 +30,7 @@
     <string name="menu_item_import_config_clipboard">و من ٱووردن کانفیگ ز کلیپ بورد</string>
     <string name="menu_item_import_config_local">و من ٱووردن کانفیگ ز مهلی</string>
     <string name="menu_item_import_config_policy_group">ٱووردن [بونکۊ سیاست]</string>
+    <string name="menu_item_import_config_proxy_chain">Add [Proxy chain]</string>
     <string name="menu_item_import_config_manually_vmess">هؽل دستی[VMess]</string>
     <string name="menu_item_import_config_manually_vless">هؽل دستی[VLESS]</string>
     <string name="menu_item_import_config_manually_ss">هؽل دستی[Shadowsocks]</string>
@@ -210,6 +211,7 @@
 
     <string name="title_pref_delay_test_url">نشۊوی اینترنتی آزمایش تئخیر واقعی</string>
     <string name="summary_pref_delay_test_url">نشۊوی اینترنتی</string>
+    <string name="title_pref_real_ping_concurrency">هموورگی آزمایش تئخیر واقعی</string>
 
     <string name="title_pref_ip_api_url">نشۊوی اینترنتی آزمایش دووسمندیا منپیز هیم سکویی</string>
     <string name="summary_pref_ip_api_url">نشۊوی اینترنتی</string>
@@ -375,6 +377,12 @@
     <string name="title_policy_group_type">نوع بونکۊ سیاست</string>
     <string name="title_policy_group_subscription_id">ز بونکۊ اشتراک</string>
     <string name="title_policy_group_subscription_filter">توزیهات فیلتر معمۊلی</string>
+    <string name="server_proxy_chain_members">اعضای زنجیره پروکسی</string>
+    <string name="server_proxy_chain_pick_members">اینجا بزنین تا عضو اِنتخاب اکه</string>
+    <string name="server_proxy_chain_member_unselected">یه عضو اِنتخاب کۊنین</string>
+    <string name="server_proxy_chain_members_unselected">لطفا سی هر ردیو زنجیره، remark اِنتخاب کۊنین</string>
+    <string name="server_proxy_chain_members_insufficient">تعداد عضوها کافی نیس</string>
+    <string name="server_proxy_chain_members_invalid">اعضای نامعتبر زنجیره: %1$s</string>
 
     <!-- BackupActivity -->
     <string name="title_configuration_backup_restore">لادراری گرؽڌن &amp; وورگندن</string>

V2rayNG/app/src/main/res/values-fa/strings.xml

@@ -30,6 +30,7 @@
     <string name="menu_item_import_config_clipboard">کانفیگ را از کلیپ ‌بورد وارد کنید</string>
     <string name="menu_item_import_config_local">کانفیگ را از محلی وارد کنید</string>
     <string name="menu_item_import_config_policy_group">اضافه کردن [گروه خط مشی]</string>
+    <string name="menu_item_import_config_proxy_chain">Add [Proxy chain]</string>
     <string name="menu_item_import_config_manually_vmess">تایپ دستی[VMESS]</string>
     <string name="menu_item_import_config_manually_vless">تایپ دستی[VLESS]</string>
     <string name="menu_item_import_config_manually_ss">تایپ دستی[SHADOWSOCKS]</string>
@@ -208,6 +209,7 @@
 
     <string name="title_pref_delay_test_url">آدرس اینترنتی آزمایش تاخیر واقعی کانفیگ ها </string>
     <string name="summary_pref_delay_test_url">URL</string>
+    <string name="title_pref_real_ping_concurrency">تعداد همزمانی تست تأخیر واقعی</string>
 
     <string name="title_pref_ip_api_url">تست اطلاعات اتصال فعلی url</string>
     <string name="summary_pref_ip_api_url">Url</string>
@@ -372,6 +374,12 @@
     <string name="title_policy_group_type">نوع گروه خط مشی</string>
     <string name="title_policy_group_subscription_id">از گروه اشتراک</string>
     <string name="title_policy_group_subscription_filter">توضیحات فیلتر معمولی</string>
+    <string name="server_proxy_chain_members">اعضای زنجیره پروکسی</string>
+    <string name="server_proxy_chain_pick_members">برای انتخاب عضو اینجا بزنید</string>
+    <string name="server_proxy_chain_member_unselected">یک عضو را انتخاب کنید</string>
+    <string name="server_proxy_chain_members_unselected">لطفا برای هر ردیف زنجیره remark انتخاب کنید</string>
+    <string name="server_proxy_chain_members_insufficient">تعداد اعضا کافی نیست</string>
+    <string name="server_proxy_chain_members_invalid">اعضای نامعتبر زنجیره: %1$s</string>
 
     <!-- BackupActivity -->
     <string name="title_configuration_backup_restore">پشتیبان‌گیری و بازیابی</string>

V2rayNG/app/src/main/res/values-ru/strings.xml

@@ -30,6 +30,7 @@
     <string name="menu_item_import_config_clipboard">Импорт из буфера обмена</string>
     <string name="menu_item_import_config_local">Импорт из файла</string>
     <string name="menu_item_import_config_policy_group">Добавить группу политик</string>
+    <string name="menu_item_import_config_proxy_chain">Add [Proxy chain]</string>
     <string name="menu_item_import_config_manually_vmess">Ручной ввод VMess</string>
     <string name="menu_item_import_config_manually_vless">Ручной ввод VLESS</string>
     <string name="menu_item_import_config_manually_ss">Ручной ввод Shadowsocks</string>
@@ -212,6 +213,7 @@
 
     <string name="title_pref_delay_test_url">Сервис проверки задержки</string>
     <string name="summary_pref_delay_test_url">URL</string>
+    <string name="title_pref_real_ping_concurrency">Параллельность теста задержки</string>
 
     <string name="title_pref_ip_api_url">Сервис проверки текущего соединения</string>
     <string name="summary_pref_ip_api_url">URL</string>
@@ -378,6 +380,12 @@
     <string name="title_policy_group_type">Тип группы политик</string>
     <string name="title_policy_group_subscription_id">Из группы подписки</string>
     <string name="title_policy_group_subscription_filter">Название фильтра</string>
+    <string name="server_proxy_chain_members">Участники цепочки прокси</string>
+    <string name="server_proxy_chain_pick_members">Нажмите здесь, чтобы выбрать участника</string>
+    <string name="server_proxy_chain_member_unselected">Выберите участника</string>
+    <string name="server_proxy_chain_members_unselected">Пожалуйста, выберите участника для каждой строки цепочки</string>
+    <string name="server_proxy_chain_members_insufficient">Недостаточно участников</string>
+    <string name="server_proxy_chain_members_invalid">Недопустимые участники цепочки: %1$s</string>
 
     <!-- BackupActivity -->
     <string name="title_configuration_backup_restore">Резервное копирование</string>

V2rayNG/app/src/main/res/values-vi/strings.xml

@@ -30,6 +30,7 @@
     <string name="menu_item_import_config_clipboard">Nhập cấu hình từ Clipboard</string>
     <string name="menu_item_import_config_local">Import config from locally</string>
     <string name="menu_item_import_config_policy_group">Add [Policy group]</string>
+    <string name="menu_item_import_config_proxy_chain">Add [Proxy chain]</string>
     <string name="menu_item_import_config_manually_vmess">Nhập thủ công [VMess]</string>
     <string name="menu_item_import_config_manually_vless">Nhập thủ công [VLESS]</string>
     <string name="menu_item_import_config_manually_ss">Nhập thủ công [ShadowSocks]</string>
@@ -210,6 +211,7 @@
 
     <string name="title_pref_delay_test_url">URL kiểm tra độ trễ thực </string>
     <string name="summary_pref_delay_test_url">URL</string>
+    <string name="title_pref_real_ping_concurrency">Số luồng kiểm tra độ trễ thực</string>
 
     <string name="title_pref_ip_api_url">Current connection info test url</string>
     <string name="summary_pref_ip_api_url">Url</string>
@@ -377,6 +379,12 @@
     <string name="title_policy_group_type">Policy group type</string>
     <string name="title_policy_group_subscription_id">From subscription group</string>
     <string name="title_policy_group_subscription_filter">Remarks regular filter</string>
+    <string name="server_proxy_chain_members">Proxy chain members</string>
+    <string name="server_proxy_chain_pick_members">Tap here to pick member</string>
+    <string name="server_proxy_chain_member_unselected">Select a member</string>
+    <string name="server_proxy_chain_members_unselected">Please select member for each chain row</string>
+    <string name="server_proxy_chain_members_insufficient">Insufficient members</string>
+    <string name="server_proxy_chain_members_invalid">Invalid chain members: %1$s</string>
 
     <!-- BackupActivity -->
     <string name="title_configuration_backup_restore">Backup &amp; Restore</string>

V2rayNG/app/src/main/res/values-zh-rCN/strings.xml

@@ -30,6 +30,7 @@
     <string name="menu_item_import_config_clipboard">从剪贴板导入</string>
     <string name="menu_item_import_config_local">从本地导入</string>
     <string name="menu_item_import_config_policy_group">添加 [策略组]</string>
+    <string name="menu_item_import_config_proxy_chain">添加 [链式代理]</string>
     <string name="menu_item_import_config_manually_vmess">添加 [VMess]</string>
     <string name="menu_item_import_config_manually_vless">添加 [VLESS]</string>
     <string name="menu_item_import_config_manually_ss">添加 [Shadowsocks]</string>
@@ -154,9 +155,9 @@
     <string name="summary_pref_is_booted">开机时自动连接选择的服务器，可能会不成功</string>
 
     <string name="title_pref_auto_remove_invalid_after_test">测试后自动删除无效配置</string>
-    <string name="summary_pref_auto_remove_invalid_after_test">测试结果可能不准确；已删除的配置无法恢复。</string>
+    <string name="summary_pref_auto_remove_invalid_after_test">测试结果可能不准确且已删除的配置无法恢复</string>
     <string name="title_pref_auto_sort_after_test">测试后自动排序</string>
-    <string name="summary_pref_auto_sort_after_test">测试结果可能不准确；</string>
+    <string name="summary_pref_auto_sort_after_test">测试结果可能不准确</string>
 
     <string name="title_mux_settings">Mux 多路复用 设置</string>
     <string name="title_pref_mux_enabled">启用 Mux 多路复用</string>
@@ -207,6 +208,7 @@
 
     <string name="title_pref_delay_test_url">真连接延迟测试网址 </string>
     <string name="summary_pref_delay_test_url">Url</string>
+    <string name="title_pref_real_ping_concurrency">真连接延迟测试并发数量</string>
 
     <string name="title_pref_ip_api_url">当前连接信息测试网址</string>
     <string name="summary_pref_ip_api_url">URL</string>
@@ -273,7 +275,7 @@
     <string name="title_mode_help">点此查看更多帮助</string>
     <string name="title_language">语言</string>
     <string name="title_ui_settings">用户界面设置</string>
-    <string name="title_pref_ui_mode_night">界面颜色设置</string>
+    <string name="title_pref_ui_mode_night">深色模式</string>
     <string name="title_pref_use_hev_tunnel">启用 Hev TUN 功能</string>
     <string name="summary_pref_use_hev_tunnel">选择启用后 TUN 将使用 hev-socks5-tunnel 否则使用 xray-core</string>
     <string name="title_pref_hev_tunnel_loglevel">HevTun 日志级别</string>
@@ -376,6 +378,12 @@
     <string name="title_policy_group_type">策略组类型</string>
     <string name="title_policy_group_subscription_id">来自订阅分组</string>
     <string name="title_policy_group_subscription_filter">别名正则过滤</string>
+    <string name="server_proxy_chain_members">代理链成员</string>
+    <string name="server_proxy_chain_pick_members">点此选择成员</string>
+    <string name="server_proxy_chain_member_unselected">请选择成员</string>
+    <string name="server_proxy_chain_members_unselected">请为链路中的每一行选择成员</string>
+    <string name="server_proxy_chain_members_insufficient">成员数量不足</string>
+    <string name="server_proxy_chain_members_invalid">无效的链路成员: %1$s</string>
 
     <!-- BackupActivity -->
     <string name="title_configuration_backup_restore">备份 &amp; 还原</string>

V2rayNG/app/src/main/res/values-zh-rTW/strings.xml

@@ -30,6 +30,7 @@
     <string name="menu_item_import_config_clipboard">從剪貼簿匯入設定</string>
     <string name="menu_item_import_config_local">從本地匯入</string>
     <string name="menu_item_import_config_policy_group">新增 [策略組]</string>
+    <string name="menu_item_import_config_proxy_chain">新增 [鍊式代理]</string>
     <string name="menu_item_import_config_manually_vmess">新增 [VMess]</string>
     <string name="menu_item_import_config_manually_vless">新增 [VLESS]</string>
     <string name="menu_item_import_config_manually_ss">新增 [Shadowsocks]</string>
@@ -155,9 +156,9 @@
     <string name="summary_pref_is_booted">開機時自動連線選擇的伺服器，可能會不成功</string>
 
     <string name="title_pref_auto_remove_invalid_after_test">測試後自動刪除無效配置</string>
-    <string name="summary_pref_auto_remove_invalid_after_test">測試結果可能不準確；已刪除的配置無法復原。 </string>
+    <string name="summary_pref_auto_remove_invalid_after_test">測試結果可能不準確且已刪除的配置無法復原</string>
     <string name="title_pref_auto_sort_after_test">測試後自動排序</string>
-    <string name="summary_pref_auto_sort_after_test">測試結果可能不準確；</string>
+    <string name="summary_pref_auto_sort_after_test">測試結果可能不準確</string>
 
     <string name="title_mux_settings">Mux 設定</string>
     <string name="title_pref_mux_enabled">啟用 Mux 多路復用</string>
@@ -208,6 +209,7 @@
 
     <string name="title_pref_delay_test_url">真連線延遲測試網址 </string>
     <string name="summary_pref_delay_test_url">Url</string>
+    <string name="title_pref_real_ping_concurrency">真連線延遲測試並發數量</string>
 
     <string name="title_pref_ip_api_url">目前連線資訊測試網址</string>
     <string name="summary_pref_ip_api_url">URL</string>
@@ -273,8 +275,8 @@
     <string name="title_mode">模式</string>
     <string name="title_mode_help">輕觸以檢視說明</string>
     <string name="title_language">語言</string>
-    <string name="title_ui_settings">介面顏色設定</string>
-    <string name="title_pref_ui_mode_night">介面顯示模式</string>
+    <string name="title_ui_settings">介面顯示設定</string>
+    <string name="title_pref_ui_mode_night">深色模式</string>
     <string name="title_pref_use_hev_tunnel">啟用 Hev TUN 功能</string>
     <string name="summary_pref_use_hev_tunnel">選擇啟用後 TUN 將使用 hev-socks5-tunnel 否則使用 xray-core</string>
     <string name="title_pref_hev_tunnel_loglevel">HevTun 日誌級別</string>
@@ -315,8 +317,8 @@
     <string name="title_update_subscription_result">更新了 %1$d 個配置（%2$d 個成功，%3$d 個失敗，%4$d 個跳過）</string>
     <string name="title_update_subscription_no_subscription">無訂閱</string>
     <string name="toast_server_not_found_in_group">當前分組中未找到選中的伺服器</string>
-    <string name="toast_fragment_not_available">定位所選配置</string>
-    <string name="title_locate_selected_config">Locate the selected config</string>
+    <string name="toast_fragment_not_available">無法定位當前視圖</string>
+    <string name="title_locate_selected_config">定位所選配置</string>
 
     <string name="tasker_start_service">啟動服務</string>
     <string name="tasker_setting_confirm">確定</string>
@@ -376,9 +378,15 @@
     <string name="title_policy_group_type">策略群組類型</string>
     <string name="title_policy_group_subscription_id">來自訂閱分組</string>
     <string name="title_policy_group_subscription_filter">別名正規過濾</string>
+    <string name="server_proxy_chain_members">代理鏈成員</string>
+    <string name="server_proxy_chain_pick_members">點此選擇成員</string>
+    <string name="server_proxy_chain_member_unselected">請選擇成員</string>
+    <string name="server_proxy_chain_members_unselected">請為鏈路中的每一列選擇成員</string>
+    <string name="server_proxy_chain_members_insufficient">成員數量不足</string>
+    <string name="server_proxy_chain_members_invalid">無效的鏈路成員: %1$s</string>
 
     <!-- BackupActivity -->
-    <string name="title_configuration_backup_restore">Backup &amp; Restore</string>
+    <string name="title_configuration_backup_restore">備份與恢復</string>
     <string name="title_configuration_backup">備份設定</string>
     <string name="title_configuration_restore">還原設定</string>
     <string name="title_configuration_share">分享設定</string>
@@ -410,7 +418,7 @@
 
     <string-array name="mode_entries">
         <item>VPN</item>
-        <item>僅 Proxy</item>
+        <item>僅代理</item>
     </string-array>
 
     <string-array name="ui_mode_night">

V2rayNG/app/src/main/res/values/strings.xml

@@ -31,6 +31,7 @@
     <string name="menu_item_import_config_clipboard">Import from Clipboard</string>
     <string name="menu_item_import_config_local">Import from locally</string>
     <string name="menu_item_import_config_policy_group">Add [Policy group]</string>
+    <string name="menu_item_import_config_proxy_chain">Add [Proxy chain]</string>
     <string name="menu_item_import_config_manually_vmess">Add [VMess]</string>
     <string name="menu_item_import_config_manually_vless">Add [VLESS]</string>
     <string name="menu_item_import_config_manually_ss">Add [Shadowsocks]</string>
@@ -214,6 +215,7 @@
 
     <string name="title_pref_delay_test_url">True delay test url </string>
     <string name="summary_pref_delay_test_url">Url</string>
+    <string name="title_pref_real_ping_concurrency">True delay test concurrency</string>
 
     <string name="title_pref_ip_api_url">Current connection info test url</string>
     <string name="summary_pref_ip_api_url">Url</string>
@@ -382,6 +384,13 @@
     <string name="title_policy_group_subscription_id">From subscription group</string>
     <string name="title_policy_group_subscription_filter">Remarks regular filter</string>
 
+    <string name="server_proxy_chain_members">Proxy chain members</string>
+    <string name="server_proxy_chain_pick_members">Tap here to pick member</string>
+    <string name="server_proxy_chain_member_unselected">Select a member</string>
+    <string name="server_proxy_chain_members_unselected">Please select member for each chain row</string>
+    <string name="server_proxy_chain_members_insufficient">Insufficient members</string>
+    <string name="server_proxy_chain_members_invalid">Invalid chain members: %1$s</string>
+
     <!-- BackupActivity -->
     <string name="title_configuration_backup_restore">Backup &amp; Restore</string>
     <string name="title_configuration_backup">Backup config</string>

V2rayNG/app/src/main/res/xml/pref_settings.xml

@@ -303,6 +303,12 @@
             android:summary="@string/summary_pref_delay_test_url"
             android:title="@string/title_pref_delay_test_url" />
 
+        <EditTextPreference
+            android:inputType="number"
+            android:key="pref_real_ping_concurrency"
+            android:summary="16"
+            android:title="@string/title_pref_real_ping_concurrency" />
+
         <EditTextPreference
             android:key="pref_ip_api_url"
             android:summary="@string/summary_pref_ip_api_url"