diff --git a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/AppConfig.kt b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/AppConfig.kt
index 9f2278db..a196269f 100644
--- a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/AppConfig.kt
+++ b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/AppConfig.kt
@@ -50,12 +50,4 @@ object AppConfig {
     const val MSG_STATE_STOP = 4
     const val MSG_STATE_STOP_SUCCESS = 41
     const val MSG_STATE_RESTART = 5
-
-    object EConfigType {
-        val Vmess = 1
-        val Custom = 2
-        val Shadowsocks = 3
-        val Socks = 4
-    }
-
 }
\ No newline at end of file
diff --git a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/dto/EConfigType.kt b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/dto/EConfigType.kt
new file mode 100644
index 00000000..0f98ff7b
--- /dev/null
+++ b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/dto/EConfigType.kt
@@ -0,0 +1,12 @@
+package com.v2ray.ang.dto
+
+enum class EConfigType(val value: Int) {
+    VMESS(1),
+    CUSTOM(2),
+    SHADOWSOCKS(3),
+    SOCKS(4);
+
+    companion object {
+        fun fromInt(value: Int) = values().firstOrNull { it.value == value }
+    }
+}
\ No newline at end of file
diff --git a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/ui/MainActivity.kt b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/ui/MainActivity.kt
index a872572c..6d420339 100644
--- a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/ui/MainActivity.kt
+++ b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/ui/MainActivity.kt
@@ -27,6 +27,7 @@ import android.support.v4.view.GravityCompat
 import android.support.v7.app.ActionBarDrawerToggle
 import android.support.v7.widget.helper.ItemTouchHelper
 import android.util.Log
+import com.v2ray.ang.dto.EConfigType
 //import com.v2ray.ang.InappBuyActivity
 import rx.Observable
 import rx.android.schedulers.AndroidSchedulers
@@ -252,7 +253,7 @@ class MainActivity : BaseActivity(), NavigationView.OnNavigationItemSelectedList
                 adapter.updateConfigList()
             }
             for (k in 0 until configs.vmess.count()) {
-                if (configs.vmess[k].configType != AppConfig.EConfigType.Custom) {
+                if (configs.vmess[k].configType != EConfigType.CUSTOM.value) {
                     testingJobs.add(GlobalScope.launch(Dispatchers.IO) {
                         configs.vmess[k].testResult = Utils.tcping(configs.vmess[k].address, configs.vmess[k].port)
                         val myJob = coroutineContext[Job]
diff --git a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/ui/MainRecyclerAdapter.kt b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/ui/MainRecyclerAdapter.kt
index 5f9b6ac3..b557db80 100644
--- a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/ui/MainRecyclerAdapter.kt
+++ b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/ui/MainRecyclerAdapter.kt
@@ -8,6 +8,7 @@ import android.view.ViewGroup
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.R
 import com.v2ray.ang.dto.AngConfig
+import com.v2ray.ang.dto.EConfigType
 import com.v2ray.ang.helper.ItemTouchHelperAdapter
 import com.v2ray.ang.helper.ItemTouchHelperViewHolder
 import com.v2ray.ang.util.AngConfigManager
@@ -18,7 +19,6 @@ import org.jetbrains.anko.*
 import rx.Observable
 import rx.android.schedulers.AndroidSchedulers
 import java.util.concurrent.TimeUnit
-import com.v2ray.ang.extension.defaultDPreference
 
 class MainRecyclerAdapter(val activity: MainActivity) : RecyclerView.Adapter<MainRecyclerAdapter.BaseViewHolder>()
         , ItemTouchHelperAdapter {
@@ -49,7 +49,7 @@ class MainRecyclerAdapter(val activity: MainActivity) : RecyclerView.Adapter<Mai
 
     override fun onBindViewHolder(holder: BaseViewHolder, position: Int) {
         if (holder is MainViewHolder) {
-            val configType = configs.vmess[position].configType
+            val configType = EConfigType.fromInt(configs.vmess[position].configType)
             val remarks = configs.vmess[position].remarks
             val subid = configs.vmess[position].subid
             val address = configs.vmess[position].address
@@ -67,20 +67,12 @@ class MainRecyclerAdapter(val activity: MainActivity) : RecyclerView.Adapter<Mai
                 holder.subid.text = "S"
             }
 
-            if (configType == AppConfig.EConfigType.Vmess) {
-                holder.type.text = "vmess"
-                holder.statistics.text = "$address : $port"
-                holder.layout_share.visibility = View.VISIBLE
-            } else if (configType == AppConfig.EConfigType.Custom) {
+            if (configType == EConfigType.CUSTOM) {
                 holder.type.text = mActivity.getString(R.string.server_customize_config)
                 holder.statistics.text = ""//mActivity.getString(R.string.server_customize_config)
                 holder.layout_share.visibility = View.INVISIBLE
-            } else if (configType == AppConfig.EConfigType.Shadowsocks) {
-                holder.type.text = "shadowsocks"
-                holder.statistics.text = "$address : $port"
-                holder.layout_share.visibility = View.VISIBLE
-            } else if (configType == AppConfig.EConfigType.Socks) {
-                holder.type.text = "socks"
+            } else {
+                holder.type.text = configType?.name?.toLowerCase()
                 holder.statistics.text = "$address : $port"
                 holder.layout_share.visibility = View.VISIBLE
             }
@@ -125,13 +117,13 @@ class MainRecyclerAdapter(val activity: MainActivity) : RecyclerView.Adapter<Mai
             }
 
             holder.layout_edit.setOnClickListener {
-                if (configType == AppConfig.EConfigType.Vmess) {
+                if (configType == EConfigType.VMESS) {
                     mActivity.startActivity<ServerActivity>("position" to position, "isRunning" to !changeable)
-                } else if (configType == AppConfig.EConfigType.Custom) {
+                } else if (configType == EConfigType.CUSTOM) {
                     mActivity.startActivity<Server2Activity>("position" to position, "isRunning" to !changeable)
-                } else if (configType == AppConfig.EConfigType.Shadowsocks) {
+                } else if (configType == EConfigType.SHADOWSOCKS) {
                     mActivity.startActivity<Server3Activity>("position" to position, "isRunning" to !changeable)
-                } else if (configType == AppConfig.EConfigType.Socks) {
+                } else if (configType == EConfigType.SOCKS) {
                     mActivity.startActivity<Server4Activity>("position" to position, "isRunning" to !changeable)
                 }
             }
diff --git a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/AngConfigManager.kt b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/AngConfigManager.kt
index 4eb6e9de..09358c0d 100644
--- a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/AngConfigManager.kt
+++ b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/AngConfigManager.kt
@@ -14,6 +14,7 @@ import com.v2ray.ang.AppConfig.SS_PROTOCOL
 import com.v2ray.ang.AppConfig.VMESS_PROTOCOL
 import com.v2ray.ang.R
 import com.v2ray.ang.dto.AngConfig
+import com.v2ray.ang.dto.EConfigType
 import com.v2ray.ang.dto.VmessQRCode
 import java.net.URI
 import java.net.URLDecoder
@@ -65,7 +66,7 @@ object AngConfigManager {
     fun addServer(vmess: AngConfig.VmessBean, index: Int): Int {
         try {
             vmess.configVersion = 2
-            vmess.configType = AppConfig.EConfigType.Vmess
+            vmess.configType = EConfigType.VMESS.value
 
             if (index >= 0) {
                 //edit
@@ -208,14 +209,14 @@ object AngConfigManager {
         return app.defaultDPreference.getPrefString(AppConfig.PREF_CURR_CONFIG, "")
     }
 
-    fun currConfigType(): Int {
+    fun currConfigType(): EConfigType? {
         if (angConfig.index < 0
                 || angConfig.vmess.count() <= 0
                 || angConfig.index > angConfig.vmess.count() - 1
         ) {
-            return -1
+            return null
         }
-        return angConfig.vmess[angConfig.index].configType
+        return EConfigType.fromInt(angConfig.vmess[angConfig.index].configType)
     }
 
     fun currConfigName(): String {
@@ -275,7 +276,7 @@ object AngConfigManager {
                         return R.string.toast_incorrect_protocol
                     }
 
-                    vmess.configType = AppConfig.EConfigType.Vmess
+                    vmess.configType = EConfigType.VMESS.value
                     vmess.security = "auto"
                     vmess.network = "tcp"
                     vmess.headerType = "none"
@@ -478,7 +479,7 @@ object AngConfigManager {
             }
 
             val vmess = angConfig.vmess[index]
-            if (angConfig.vmess[index].configType == AppConfig.EConfigType.Vmess) {
+            if (angConfig.vmess[index].configType == EConfigType.VMESS.value) {
 
                 val vmessQRCode = VmessQRCode()
                 vmessQRCode.v = vmess.configVersion.toString()
@@ -496,7 +497,7 @@ object AngConfigManager {
                 val conf = VMESS_PROTOCOL + Utils.encode(json)
 
                 return conf
-            } else if (angConfig.vmess[index].configType == AppConfig.EConfigType.Shadowsocks) {
+            } else if (angConfig.vmess[index].configType == EConfigType.SHADOWSOCKS.value) {
                 val remark = "#" + Utils.urlEncode(vmess.remarks)
                 val url = String.format("%s:%s@%s:%s",
                         vmess.security,
@@ -504,7 +505,7 @@ object AngConfigManager {
                         vmess.address,
                         vmess.port)
                 return SS_PROTOCOL + Utils.encode(url) + remark
-            } else if (angConfig.vmess[index].configType == AppConfig.EConfigType.Socks) {
+            } else if (angConfig.vmess[index].configType == EConfigType.SOCKS.value) {
                 val remark = "#" + Utils.urlEncode(vmess.remarks)
                 val url = String.format("%s:%s",
                         vmess.address,
@@ -613,7 +614,7 @@ object AngConfigManager {
             //add
             val vmess = AngConfig.VmessBean()
             vmess.configVersion = 2
-            vmess.configType = AppConfig.EConfigType.Custom
+            vmess.configType = EConfigType.CUSTOM.value
             vmess.guid = guid
             vmess.remarks = vmess.guid
 
@@ -716,7 +717,7 @@ object AngConfigManager {
     fun addCustomServer(vmess: AngConfig.VmessBean, index: Int): Int {
         try {
             vmess.configVersion = 2
-            vmess.configType = AppConfig.EConfigType.Custom
+            vmess.configType = EConfigType.CUSTOM.value
 
             if (index >= 0) {
                 //edit
@@ -741,7 +742,7 @@ object AngConfigManager {
     fun addShadowsocksServer(vmess: AngConfig.VmessBean, index: Int): Int {
         try {
             vmess.configVersion = 2
-            vmess.configType = AppConfig.EConfigType.Shadowsocks
+            vmess.configType = EConfigType.SHADOWSOCKS.value
 
             if (index >= 0) {
                 //edit
@@ -766,7 +767,7 @@ object AngConfigManager {
     fun addSocksServer(vmess: AngConfig.VmessBean, index: Int): Int {
         try {
             vmess.configVersion = 2
-            vmess.configType = AppConfig.EConfigType.Socks
+            vmess.configType = EConfigType.SOCKS.value
 
             if (index >= 0) {
                 //edit
diff --git a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/Utils.kt b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/Utils.kt
index e50a0075..1a403778 100644
--- a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/Utils.kt
+++ b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/Utils.kt
@@ -14,36 +14,25 @@ import kotlin.collections.HashMap
 import android.app.ActivityManager
 import android.content.ClipData
 import android.content.Intent
-import android.content.res.AssetManager
 import android.net.Uri
 import android.os.SystemClock
 import android.text.TextUtils
-import android.text.method.ScrollingMovementMethod
 import android.util.Log
 import android.util.Patterns
-import android.view.View
 import android.webkit.URLUtil
 import com.v2ray.ang.AngApplication
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.R
+import com.v2ray.ang.dto.EConfigType
 import com.v2ray.ang.extension.responseLength
 import com.v2ray.ang.extension.v2RayApplication
 import com.v2ray.ang.service.V2RayVpnService
 import com.v2ray.ang.ui.SettingsActivity
-import kotlinx.android.synthetic.main.activity_logcat.*
 import kotlinx.coroutines.isActive
 import me.dozen.dpreference.DPreference
 import org.jetbrains.anko.toast
-import org.jetbrains.anko.uiThread
-import java.io.BufferedReader
-import java.io.File
 import java.io.IOException
-import java.io.InputStreamReader
 import java.net.*
-import java.util.regex.Matcher
-import java.util.regex.Pattern
-import java.math.BigInteger
-import java.util.concurrent.TimeUnit
 import libv2ray.Libv2ray
 import kotlin.coroutines.coroutineContext
 
@@ -324,7 +313,7 @@ object Utils {
         if (AngConfigManager.genStoreV2rayConfig(-1)) {
             val configContent = AngConfigManager.currGeneratedV2rayConfig()
             val configType = AngConfigManager.currConfigType()
-            if (configType == AppConfig.EConfigType.Custom) {
+            if (configType == EConfigType.CUSTOM) {
                 try {
                     Libv2ray.testConfig(configContent)
                 } catch (e: Exception) {
diff --git a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/V2rayConfigUtil.kt b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/V2rayConfigUtil.kt
index d3c97cc4..b00c8dc3 100644
--- a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/V2rayConfigUtil.kt
+++ b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/V2rayConfigUtil.kt
@@ -14,6 +14,7 @@ import org.json.JSONException
 import org.json.JSONObject
 import org.json.JSONArray
 import com.google.gson.JsonObject
+import com.v2ray.ang.dto.EConfigType
 
 object V2rayConfigUtil {
     private val requestObj: JsonObject by lazy {
@@ -40,13 +41,9 @@ object V2rayConfigUtil {
 //                return result
 //            }
 
-            if (vmess.configType == AppConfig.EConfigType.Vmess) {
-                result = getV2rayConfigType1(app, vmess)
-            } else if (vmess.configType == AppConfig.EConfigType.Custom) {
+            if (vmess.configType == EConfigType.CUSTOM.value) {
                 result = getV2rayConfigType2(app, vmess)
-            } else if (vmess.configType == AppConfig.EConfigType.Shadowsocks) {
-                result = getV2rayConfigType1(app, vmess)
-            } else if (vmess.configType == AppConfig.EConfigType.Socks) {
+            } else {
                 result = getV2rayConfigType1(app, vmess)
             }
 
@@ -163,8 +160,12 @@ object V2rayConfigUtil {
         try {
             val outbound = v2rayConfig.outbounds[0]
 
-            when (vmess.configType) {
-                AppConfig.EConfigType.Vmess -> {
+            val configType = EConfigType.fromInt(vmess.configType)
+            if (configType != null) {
+                outbound.protocol = configType.name.toLowerCase()
+            }
+            when (configType) {
+                EConfigType.VMESS -> {
                     outbound.settings?.servers = null
 
                     val vnext = v2rayConfig.outbounds[0].settings?.vnext?.get(0)
@@ -182,10 +183,8 @@ object V2rayConfigUtil {
 
                     //远程服务器底层传输配置
                     outbound.streamSettings = boundStreamSettings(vmess)
-
-                    outbound.protocol = "vmess"
                 }
-                AppConfig.EConfigType.Shadowsocks -> {
+                EConfigType.SHADOWSOCKS -> {
                     outbound.settings?.vnext = null
 
                     val server = outbound.settings?.servers?.get(0)
@@ -198,10 +197,8 @@ object V2rayConfigUtil {
 
                     //Mux
                     outbound.mux?.enabled = false
-
-                    outbound.protocol = "shadowsocks"
                 }
-                AppConfig.EConfigType.Socks -> {
+                EConfigType.SOCKS -> {
                     outbound.settings?.vnext = null
 
                     val server = outbound.settings?.servers?.get(0)
@@ -210,8 +207,6 @@ object V2rayConfigUtil {
 
                     //Mux
                     outbound.mux?.enabled = false
-
-                    outbound.protocol = "socks"
                 }
                 else -> {
                 }