app: Fix always-on-vpn for android 10+

Author: hamjin

app/src/main/java/com/github/kr328/clash/util/Clash.kt

@@ -26,17 +26,16 @@ fun Context.runClashService(): Intent? {
     } else {
         startForegroundServiceCompat(ClashService::class.intent)
     }
+    UiStore(this).enableClashService = true
 
     return null
 }
 
 fun Context.startClashService(): Intent? {
-    UiStore(this).enableClashService = true
     return runClashService()
 }
 
 fun Context.stopClashService() {
-    UiStore(this).enableClashService = false
     sendBroadcastSelf(Intent(Intents.ACTION_CLASH_REQUEST_STOP))
 }
 

service/src/main/java/com/github/kr328/clash/service/clash/module/CloseModule.kt

@@ -1,19 +1,28 @@
 package com.github.kr328.clash.service.clash.module
 
 import android.app.Service
+import android.os.Build
 import com.github.kr328.clash.common.constants.Intents
 import com.github.kr328.clash.common.log.Log
+import com.github.kr328.clash.service.TunService
 
 class CloseModule(service: Service) : Module<CloseModule.RequestClose>(service) {
     object RequestClose
 
+    fun isAlwaysOn(service: Service): Boolean {
+        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q && service is TunService && service.isAlwaysOn
+    }
+
     override suspend fun run() {
         val broadcasts = receiveBroadcast {
             addAction(Intents.ACTION_CLASH_REQUEST_STOP)
         }
 
         broadcasts.receive()
 
+        if (isAlwaysOn(service))
+            return
+
         Log.d("User request close")
 
         return enqueueEvent(RequestClose)