diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/receiver/BootReceiver.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/receiver/BootReceiver.kt
index acc86730..1d96f750 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/receiver/BootReceiver.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/receiver/BootReceiver.kt
@@ -13,6 +13,6 @@ class BootReceiver : BroadcastReceiver() {
         //Check if flag is true and a server is selected
         if (!MmkvManager.decodeStartOnBoot() || MmkvManager.getSelectServer().isNullOrEmpty()) return
         //Start v2ray
-        V2RayServiceManager.startV2Ray(context)
+        V2RayServiceManager.startVService(context)
     }
 }
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/receiver/TaskerReceiver.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/receiver/TaskerReceiver.kt
index c6e49af4..b0aa16f4 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/receiver/TaskerReceiver.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/receiver/TaskerReceiver.kt
@@ -5,9 +5,7 @@ import android.content.Context
 import android.content.Intent
 import android.text.TextUtils
 import com.v2ray.ang.AppConfig
-import com.v2ray.ang.handler.MmkvManager
 import com.v2ray.ang.service.V2RayServiceManager
-import com.v2ray.ang.util.Utils
 
 class TaskerReceiver : BroadcastReceiver() {
 
@@ -22,13 +20,12 @@ class TaskerReceiver : BroadcastReceiver() {
                 return
             } else if (switch) {
                 if (guid == AppConfig.TASKER_DEFAULT_GUID) {
-                    Utils.startVServiceFromToggle(context)
+                    V2RayServiceManager.startVServiceFromToggle(context)
                 } else {
-                    MmkvManager.setSelectServer(guid)
-                    V2RayServiceManager.startV2Ray(context)
+                    V2RayServiceManager.startVService(context, guid)
                 }
             } else {
-                Utils.stopVService(context)
+                V2RayServiceManager.stopVService(context)
             }
         } catch (e: Exception) {
             e.printStackTrace()
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/receiver/WidgetProvider.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/receiver/WidgetProvider.kt
index 5aa6c2de..eb9e7854 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/receiver/WidgetProvider.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/receiver/WidgetProvider.kt
@@ -11,7 +11,6 @@ import android.widget.RemoteViews
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.R
 import com.v2ray.ang.service.V2RayServiceManager
-import com.v2ray.ang.util.Utils
 
 class WidgetProvider : AppWidgetProvider() {
     /**
@@ -58,9 +57,9 @@ class WidgetProvider : AppWidgetProvider() {
         super.onReceive(context, intent)
         if (AppConfig.BROADCAST_ACTION_WIDGET_CLICK == intent.action) {
             if (V2RayServiceManager.v2rayPoint.isRunning) {
-                Utils.stopVService(context)
+                V2RayServiceManager.stopVService(context)
             } else {
-                Utils.startVServiceFromToggle(context)
+                V2RayServiceManager.startVServiceFromToggle(context)
             }
         } else if (AppConfig.BROADCAST_ACTION_ACTIVITY == intent.action) {
             AppWidgetManager.getInstance(context)?.let { manager ->
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/service/QSTileService.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/service/QSTileService.kt
index 151d5c38..aa6da84c 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/service/QSTileService.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/service/QSTileService.kt
@@ -64,11 +64,11 @@ class QSTileService : TileService() {
         super.onClick()
         when (qsTile.state) {
             Tile.STATE_INACTIVE -> {
-                Utils.startVServiceFromToggle(this)
+                V2RayServiceManager.startVServiceFromToggle(this)
             }
 
             Tile.STATE_ACTIVE -> {
-                Utils.stopVService(this)
+                V2RayServiceManager.stopVService(this)
             }
         }
     }
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayServiceManager.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayServiceManager.kt
index 0de09c2f..62466007 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayServiceManager.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayServiceManager.kt
@@ -66,7 +66,28 @@ object V2RayServiceManager {
     private var speedNotificationJob: Job? = null
     private var mNotificationManager: NotificationManager? = null
 
-    fun startV2Ray(context: Context) {
+    fun startVServiceFromToggle(context: Context): Boolean {
+        if (MmkvManager.getSelectServer().isNullOrEmpty()) {
+            context.toast(R.string.app_tile_first_use)
+            return false
+        }
+        startContextService(context)
+        return true
+    }
+
+    fun startVService(context: Context, guid: String? = null) {
+        if (guid != null) {
+            MmkvManager.setSelectServer(guid)
+        }
+        startContextService(context)
+    }
+
+    fun stopVService(context: Context) {
+        context.toast(R.string.toast_services_stop)
+        MessageUtil.sendMsg2Service(context, AppConfig.MSG_STATE_STOP, "")
+    }
+
+    private fun startContextService(context: Context) {
         if (v2rayPoint.isRunning) return
         val guid = MmkvManager.getSelectServer() ?: return
         val config = MmkvManager.decodeServerConfig(guid) ?: return
@@ -234,7 +255,7 @@ object V2RayServiceManager {
                     Log.d(ANG_PACKAGE, "Restart Service")
                     serviceControl.stopService()
                     Thread.sleep(500L)
-                    startV2Ray(serviceControl.getService())
+                    startVService(serviceControl.getService())
                 }
 
                 AppConfig.MSG_MEASURE_DELAY -> {
@@ -449,7 +470,7 @@ object V2RayServiceManager {
 
     private fun stopSpeedNotification() {
         speedNotificationJob?.let {
-            it.cancel() 
+            it.cancel()
             speedNotificationJob = null
             updateNotification(currentConfig?.remarks, 0, 0)
         }
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/ui/MainActivity.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/ui/MainActivity.kt
index f9fdce8e..6d441abf 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/ui/MainActivity.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/ui/MainActivity.kt
@@ -140,7 +140,7 @@ class MainActivity : BaseActivity(), NavigationView.OnNavigationItemSelectedList
 
         binding.fab.setOnClickListener {
             if (mainViewModel.isRunning.value == true) {
-                Utils.stopVService(this)
+                V2RayServiceManager.stopVService(this)
             } else if ((MmkvManager.decodeSettingsString(AppConfig.PREF_MODE) ?: VPN) == VPN) {
                 val intent = VpnService.prepare(this)
                 if (intent == null) {
@@ -269,12 +269,12 @@ class MainActivity : BaseActivity(), NavigationView.OnNavigationItemSelectedList
             toast(R.string.title_file_chooser)
             return
         }
-        V2RayServiceManager.startV2Ray(this)
+        V2RayServiceManager.startVService(this)
     }
 
     fun restartV2Ray() {
         if (mainViewModel.isRunning.value == true) {
-            Utils.stopVService(this)
+            V2RayServiceManager.stopVService(this)
         }
         lifecycleScope.launch {
             delay(500)
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/ui/MainRecyclerAdapter.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/ui/MainRecyclerAdapter.kt
index 9801cd90..54cdecf8 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/ui/MainRecyclerAdapter.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/ui/MainRecyclerAdapter.kt
@@ -26,7 +26,6 @@ import com.v2ray.ang.service.V2RayServiceManager
 import com.v2ray.ang.util.Utils
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
-import java.util.*
 
 class MainRecyclerAdapter(val activity: MainActivity) : RecyclerView.Adapter<MainRecyclerAdapter.BaseViewHolder>(), ItemTouchHelperAdapter {
     companion object {
@@ -165,11 +164,11 @@ class MainRecyclerAdapter(val activity: MainActivity) : RecyclerView.Adapter<Mai
                     }
                     notifyItemChanged(mActivity.mainViewModel.getPosition(guid))
                     if (isRunning) {
-                        Utils.stopVService(mActivity)
+                        V2RayServiceManager.stopVService(mActivity)
                         mActivity.lifecycleScope.launch {
                             try {
                                 delay(500)
-                                V2RayServiceManager.startV2Ray(mActivity)
+                                V2RayServiceManager.startVService(mActivity)
                             } catch (e: Exception) {
                                 e.printStackTrace()
                             }
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/ui/ScSwitchActivity.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/ui/ScSwitchActivity.kt
index 7f536971..3f5ce17c 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/ui/ScSwitchActivity.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/ui/ScSwitchActivity.kt
@@ -3,7 +3,6 @@ package com.v2ray.ang.ui
 import android.os.Bundle
 import com.v2ray.ang.R
 import com.v2ray.ang.service.V2RayServiceManager
-import com.v2ray.ang.util.Utils
 
 class ScSwitchActivity : BaseActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -13,9 +12,9 @@ class ScSwitchActivity : BaseActivity() {
         setContentView(R.layout.activity_none)
 
         if (V2RayServiceManager.v2rayPoint.isRunning) {
-            Utils.stopVService(this)
+            V2RayServiceManager.stopVService(this)
         } else {
-            Utils.startVServiceFromToggle(this)
+            V2RayServiceManager.startVServiceFromToggle(this)
         }
         finish()
     }
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/util/Utils.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/util/Utils.kt
index 73a70840..6f257717 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/util/Utils.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/util/Utils.kt
@@ -7,7 +7,6 @@ import android.content.Intent
 import android.content.pm.PackageManager
 import android.content.res.Configuration.UI_MODE_NIGHT_MASK
 import android.content.res.Configuration.UI_MODE_NIGHT_NO
-import android.net.Uri
 import android.os.Build
 import android.os.LocaleList
 import android.provider.Settings
@@ -18,17 +17,18 @@ import android.util.Patterns
 import android.webkit.URLUtil
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.core.content.ContextCompat
+import androidx.core.net.toUri
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.AppConfig.ANG_PACKAGE
 import com.v2ray.ang.AppConfig.LOOPBACK
-import com.v2ray.ang.R
 import com.v2ray.ang.dto.Language
-import com.v2ray.ang.extension.toast
 import com.v2ray.ang.handler.MmkvManager
-import com.v2ray.ang.service.V2RayServiceManager
 import java.io.IOException
-import java.net.*
-import java.util.*
+import java.net.ServerSocket
+import java.net.URLDecoder
+import java.net.URLEncoder
+import java.util.Locale
+import java.util.UUID
 
 object Utils {
 
@@ -207,13 +207,13 @@ object Utils {
         return isIpv4Address(value) || isIpv6Address(value)
     }
 
-    fun isIpv4Address(value: String): Boolean {
+    private fun isIpv4Address(value: String): Boolean {
         val regV4 =
             Regex("^([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\\.([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\\.([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\\.([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])$")
         return regV4.matches(value)
     }
 
-    fun isIpv6Address(value: String): Boolean {
+    private fun isIpv6Address(value: String): Boolean {
         var addr = value
         if (addr.indexOf("[") == 0 && addr.lastIndexOf("]") > 0) {
             addr = addr.drop(1)
@@ -225,7 +225,10 @@ object Utils {
     }
 
     private fun isCoreDNSAddress(s: String): Boolean {
-        return s.startsWith("https") || s.startsWith("tcp") || s.startsWith("quic") || s == "localhost"
+        return s.startsWith("https")
+                || s.startsWith("tcp")
+                || s.startsWith("quic")
+                || s == "localhost"
     }
 
     /**
@@ -249,25 +252,9 @@ object Utils {
         return false
     }
 
-    fun startVServiceFromToggle(context: Context): Boolean {
-        if (MmkvManager.getSelectServer().isNullOrEmpty()) {
-            context.toast(R.string.app_tile_first_use)
-            return false
-        }
-        V2RayServiceManager.startV2Ray(context)
-        return true
-    }
-
-    /**
-     * stopVService
-     */
-    fun stopVService(context: Context) {
-        context.toast(R.string.toast_services_stop)
-        MessageUtil.sendMsg2Service(context, AppConfig.MSG_STATE_STOP, "")
-    }
 
     fun openUri(context: Context, uriString: String) {
-        val uri = Uri.parse(uriString)
+        val uri = uriString.toUri()
         context.startActivity(Intent(Intent.ACTION_VIEW, uri))
     }