1. enable BootReceiver.

2. add PermissionRequestTransparentActivity.
3. opt const.

flutter/android/app/src/main/AndroidManifest.xml

@@ -11,22 +11,24 @@
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
-    <!--<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />-->
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
 
     <application
         android:icon="@mipmap/ic_launcher"
         android:label="RustDesk"
+        android:requestLegacyExternalStorage="true"
         android:roundIcon="@mipmap/ic_launcher"
-        android:supportsRtl="true"
+        android:supportsRtl="true">
-        android:requestLegacyExternalStorage="true">
 
         <receiver
             android:name=".BootReceiver"
-            android:enabled="false"
+            android:enabled="true"
-            android:exported="false">
+            android:exported="true">
             <intent-filter android:priority="1000">
                 <action android:name="android.intent.action.BOOT_COMPLETED" />
                 <action android:name="android.intent.action.QUICKBOOT_POWERON" />
+                <!--ACTION_BOOT_COMPLETED for debug test on no root device-->
+                <action android:name="com.carriez.flutter_hbb.DEBUG_BOOT_COMPLETED" />
             </intent-filter>
         </receiver>
 
@@ -53,8 +55,6 @@
             android:launchMode="singleTop"
             android:theme="@style/LaunchTheme"
             android:windowSoftInputMode="adjustResize">
-
-
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
@@ -62,6 +62,11 @@
             </intent-filter>
         </activity>
 
+        <activity
+            android:name=".PermissionRequestTransparentActivity"
+            android:excludeFromRecents="true"
+            android:theme="@style/Transparent" />
+
         <service
             android:name=".MainService"
             android:enabled="true"

flutter/android/app/src/main/kotlin/com/carriez/flutter_hbb/BootReceiver.kt

@@ -4,18 +4,25 @@ import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
 import android.os.Build
+import android.util.Log
 import android.widget.Toast
 
+const val DEBUG_BOOT_COMPLETED = "com.carriez.flutter_hbb.DEBUG_BOOT_COMPLETED"
+
 class BootReceiver : BroadcastReceiver() {
+    private val logTag = "tagBootReceiver"
+
     override fun onReceive(context: Context, intent: Intent) {
-        if ("android.intent.action.BOOT_COMPLETED" == intent.action){
+        Log.d(logTag, "onReceive ${intent.action}")
-            val it = Intent(context,MainService::class.java).apply {
+
-                addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+        if (Intent.ACTION_BOOT_COMPLETED == intent.action || DEBUG_BOOT_COMPLETED == intent.action) {
+            val it = Intent(context, MainService::class.java).apply {
+                action = ACT_INIT_MEDIA_PROJECTION_AND_SERVICE
             }
-            Toast.makeText(context, "RustDesk is Open", Toast.LENGTH_LONG).show();
+            Toast.makeText(context, "RustDesk is Open", Toast.LENGTH_LONG).show()
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                 context.startForegroundService(it)
-            }else{
+            } else {
                 context.startService(it)
             }
         }

flutter/android/app/src/main/kotlin/com/carriez/flutter_hbb/MainActivity.kt

@@ -7,12 +7,10 @@ package com.carriez.flutter_hbb
  * Inspired by [droidVNC-NG] https://github.com/bk138/droidVNC-NG
  */
 
-import android.app.Activity
 import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
 import android.content.ServiceConnection
-import android.media.projection.MediaProjectionManager
 import android.os.Build
 import android.os.IBinder
 import android.provider.Settings
@@ -23,7 +21,6 @@ import io.flutter.embedding.android.FlutterActivity
 import io.flutter.embedding.engine.FlutterEngine
 import io.flutter.plugin.common.MethodChannel
 
-const val MEDIA_REQUEST_CODE = 42
 
 class MainActivity : FlutterActivity() {
     companion object {
@@ -32,7 +29,6 @@ class MainActivity : FlutterActivity() {
 
     private val channelTag = "mChannel"
     private val logTag = "mMainActivity"
-    private var mediaProjectionResultIntent: Intent? = null
     private var mainService: MainService? = null
 
     @RequiresApi(Build.VERSION_CODES.M)
@@ -58,7 +54,7 @@ class MainActivity : FlutterActivity() {
                             result.success(false)
                             return@setMethodCallHandler
                         }
-                        getMediaProjection()
+                        requestMediaProjection()
                         result.success(true)
                     }
                     "start_capture" -> {
@@ -153,35 +149,6 @@ class MainActivity : FlutterActivity() {
         }
     }
 
-    private fun getMediaProjection() {
-        val mMediaProjectionManager =
-            getSystemService(MEDIA_PROJECTION_SERVICE) as MediaProjectionManager
-        val mIntent = mMediaProjectionManager.createScreenCaptureIntent()
-        startActivityForResult(mIntent, MEDIA_REQUEST_CODE)
-    }
-
-    private fun initService() {
-        if (mediaProjectionResultIntent == null) {
-            Log.w(logTag, "initService fail,mediaProjectionResultIntent is null")
-            return
-        }
-        Log.d(logTag, "Init service")
-        val serviceIntent = Intent(this, MainService::class.java)
-        serviceIntent.action = INIT_SERVICE
-        serviceIntent.putExtra(EXTRA_MP_DATA, mediaProjectionResultIntent)
-
-        launchMainService(serviceIntent)
-    }
-
-    private fun launchMainService(intent: Intent) {
-        // TEST api < O
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            startForegroundService(intent)
-        } else {
-            startService(intent)
-        }
-    }
-
     private fun initInput() {
         val intent = Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS)
         if (intent.resolveActivity(packageManager) != null) {
@@ -200,15 +167,17 @@ class MainActivity : FlutterActivity() {
         }
     }
 
+    private fun requestMediaProjection() {
+        val intent = Intent(this, PermissionRequestTransparentActivity::class.java).apply {
+            action = ACT_REQUEST_MEDIA_PROJECTION
+        }
+        startActivityForResult(intent, REQ_INVOKE_PERMISSION_ACTIVITY_MEDIA_PROJECTION)
+    }
+
     override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
         super.onActivityResult(requestCode, resultCode, data)
-        if (requestCode == MEDIA_REQUEST_CODE) {
+        if (requestCode == REQ_INVOKE_PERMISSION_ACTIVITY_MEDIA_PROJECTION && resultCode == RES_FAILED) {
-            if (resultCode == Activity.RESULT_OK && data != null) {
+            flutterMethodChannel.invokeMethod("on_media_projection_canceled", null)
-                mediaProjectionResultIntent = data
-                initService()
-            } else {
-                flutterMethodChannel.invokeMethod("on_media_projection_canceled", null)
-            }
         }
     }
 

flutter/android/app/src/main/kotlin/com/carriez/flutter_hbb/MainService.kt

@@ -43,10 +43,6 @@ import java.nio.ByteBuffer
 import kotlin.math.max
 import kotlin.math.min
 
-const val EXTRA_MP_DATA = "mp_intent"
-const val INIT_SERVICE = "init_service"
-const val ACTION_LOGIN_REQ_NOTIFY = "ACTION_LOGIN_REQ_NOTIFY"
-const val EXTRA_LOGIN_REQ_NOTIFY = "EXTRA_LOGIN_REQ_NOTIFY"
 
 const val DEFAULT_NOTIFY_TITLE = "RustDesk"
 const val DEFAULT_NOTIFY_TEXT = "Service is running"
@@ -195,6 +191,7 @@ class MainService : Service() {
 
     override fun onCreate() {
         super.onCreate()
+        Log.d(logTag,"MainService onCreate")
         HandlerThread("Service", Process.THREAD_PRIORITY_BACKGROUND).apply {
             start()
             serviceLooper = looper
@@ -203,6 +200,7 @@ class MainService : Service() {
         updateScreenInfo(resources.configuration.orientation)
         initNotification()
         startServer()
+        createForegroundNotification()
     }
 
     override fun onDestroy() {
@@ -277,22 +275,25 @@ class MainService : Service() {
     }
 
     override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
-        Log.d("whichService", "this service:${Thread.currentThread()}")
+        Log.d("whichService", "this service: ${Thread.currentThread()}")
         super.onStartCommand(intent, flags, startId)
-        if (intent?.action == INIT_SERVICE) {
+        if (intent?.action == ACT_INIT_MEDIA_PROJECTION_AND_SERVICE) {
-            Log.d(logTag, "service starting:${startId}:${Thread.currentThread()}")
+            Log.d(logTag, "service starting: ${startId}:${Thread.currentThread()}")
-            createForegroundNotification()
+            val mediaProjectionManager =
-            val mMediaProjectionManager =
                 getSystemService(MEDIA_PROJECTION_SERVICE) as MediaProjectionManager
-            intent.getParcelableExtra<Intent>(EXTRA_MP_DATA)?.let {
+
+            intent.getParcelableExtra<Intent>(EXT_MEDIA_PROJECTION_RES_INTENT)?.let {
                 mediaProjection =
-                    mMediaProjectionManager.getMediaProjection(Activity.RESULT_OK, it)
+                    mediaProjectionManager.getMediaProjection(Activity.RESULT_OK, it)
                 checkMediaPermission()
                 init(this)
                 _isReady = true
+            } ?: let {
+                Log.d(logTag, "getParcelableExtra intent null, invoke requestMediaProjection")
+                requestMediaProjection()
             }
         }
-        return START_NOT_STICKY // don't use sticky (auto restart),the new service (from auto restart) will lose control
+        return START_NOT_STICKY // don't use sticky (auto restart), the new service (from auto restart) will lose control
     }
 
     override fun onConfigurationChanged(newConfig: Configuration) {
@@ -300,6 +301,14 @@ class MainService : Service() {
         updateScreenInfo(newConfig.orientation)
     }
 
+    private fun requestMediaProjection() {
+        val intent = Intent(this, PermissionRequestTransparentActivity::class.java).apply {
+            action = ACT_REQUEST_MEDIA_PROJECTION
+            flags = Intent.FLAG_ACTIVITY_NEW_TASK
+        }
+        startActivity(intent)
+    }
+
     @SuppressLint("WrongConstant")
     private fun createSurface(): Surface? {
         return if (useVP9) {
@@ -653,8 +662,8 @@ class MainService : Service() {
     @SuppressLint("UnspecifiedImmutableFlag")
     private fun genLoginRequestPendingIntent(res: Boolean): PendingIntent {
         val intent = Intent(this, MainService::class.java).apply {
-            action = ACTION_LOGIN_REQ_NOTIFY
+            action = ACT_LOGIN_REQ_NOTIFY
-            putExtra(EXTRA_LOGIN_REQ_NOTIFY, res)
+            putExtra(EXT_LOGIN_REQ_NOTIFY, res)
         }
         return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
             PendingIntent.getService(this, 111, intent, FLAG_IMMUTABLE)

flutter/android/app/src/main/kotlin/com/carriez/flutter_hbb/PermissionRequestTransparentActivity.kt

@@ -0,0 +1,54 @@
+package com.carriez.flutter_hbb
+
+import android.app.Activity
+import android.content.Intent
+import android.media.projection.MediaProjectionManager
+import android.os.Build
+import android.os.Bundle
+import android.util.Log
+
+class PermissionRequestTransparentActivity: Activity() {
+    private val logTag = "permissionRequest"
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        Log.d(logTag, "onCreate PermissionRequestTransparentActivity: intent.action: ${intent.action}")
+
+        when (intent.action) {
+            ACT_REQUEST_MEDIA_PROJECTION -> {
+                val mediaProjectionManager =
+                    getSystemService(MEDIA_PROJECTION_SERVICE) as MediaProjectionManager
+                val intent = mediaProjectionManager.createScreenCaptureIntent()
+                startActivityForResult(intent, REQ_REQUEST_MEDIA_PROJECTION)
+            }
+            else -> finish()
+        }
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        super.onActivityResult(requestCode, resultCode, data)
+        if (requestCode == REQ_REQUEST_MEDIA_PROJECTION) {
+            if (resultCode == RESULT_OK && data != null) {
+                launchService(data)
+            } else {
+                setResult(RES_FAILED)
+            }
+        }
+
+        finish()
+    }
+
+    private fun launchService(mediaProjectionResultIntent: Intent) {
+        Log.d(logTag, "Launch MainService")
+        val serviceIntent = Intent(this, MainService::class.java)
+        serviceIntent.action = ACT_INIT_MEDIA_PROJECTION_AND_SERVICE
+        serviceIntent.putExtra(EXT_MEDIA_PROJECTION_RES_INTENT, mediaProjectionResultIntent)
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            startForegroundService(serviceIntent)
+        } else {
+            startService(serviceIntent)
+        }
+    }
+
+}

flutter/android/app/src/main/kotlin/com/carriez/flutter_hbb/common.kt

@@ -12,8 +12,7 @@ import android.os.Build
 import android.os.Handler
 import android.os.Looper
 import android.os.PowerManager
-import android.provider.Settings.ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS
+import android.provider.Settings.*
-import android.provider.Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
 import androidx.annotation.RequiresApi
 import androidx.core.content.ContextCompat.getSystemService
 import com.hjq.permissions.Permission
@@ -22,6 +21,21 @@ import java.nio.ByteBuffer
 import java.util.*
 
 
+// intent action, extra
+const val ACT_REQUEST_MEDIA_PROJECTION = "REQUEST_MEDIA_PROJECTION"
+const val ACT_INIT_MEDIA_PROJECTION_AND_SERVICE = "INIT_MEDIA_PROJECTION_AND_SERVICE"
+const val ACT_LOGIN_REQ_NOTIFY = "LOGIN_REQ_NOTIFY"
+const val EXT_MEDIA_PROJECTION_RES_INTENT = "MEDIA_PROJECTION_RES_INTENT"
+const val EXT_LOGIN_REQ_NOTIFY = "LOGIN_REQ_NOTIFY"
+
+// Activity requestCode
+const val REQ_INVOKE_PERMISSION_ACTIVITY_MEDIA_PROJECTION = 101
+const val REQ_REQUEST_MEDIA_PROJECTION = 201
+
+// Activity responseCode
+const val RES_FAILED = -100
+
+
 @SuppressLint("ConstantLocale")
 val LOCAL_NAME = Locale.getDefault().toString()
 val SCREEN_INFO = Info(0, 0, 1, 200)
@@ -59,9 +73,8 @@ fun requestPermission(context: Context, type: String) {
         }
         "application_details_settings" -> {
             try {
-                context.startActivity(Intent().apply {
+                context.startActivity(Intent(ACTION_APPLICATION_DETAILS_SETTINGS).apply {
                     addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-                    action = "android.settings.APPLICATION_DETAILS_SETTINGS"
                     data = Uri.parse("package:" + context.packageName)
                 })
             } catch (e:Exception) {

flutter/android/app/src/main/res/values/styles.xml

@@ -15,4 +15,12 @@
     <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
         <item name="android:windowBackground">?android:colorBackground</item>
     </style>
+    <style name="Transparent" parent="Theme.AppCompat.NoActionBar">
+        <item name="android:windowIsTranslucent">true</item>
+        <item name="android:windowBackground">@android:color/transparent</item>
+        <item name="android:windowContentOverlay">@null</item>
+        <item name="android:windowNoTitle">true</item>
+        <item name="android:windowIsFloating">true</item>
+        <item name="android:backgroundDimEnabled">false</item>
+    </style>
 </resources>