1. sync from flutter and pass app_dir from MainService.kt to backend server when app start on boot.

2. add start_service when start on boot.

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

@@ -34,6 +34,7 @@ class BootReceiver : BroadcastReceiver() {
 
             val it = Intent(context, MainService::class.java).apply {
                 action = ACT_INIT_MEDIA_PROJECTION_AND_SERVICE
+                putExtra(EXT_INIT_FROM_BOOT, true)
             }
             Toast.makeText(context, "RustDesk is Open", Toast.LENGTH_LONG).show()
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

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

@@ -15,7 +15,6 @@ import android.os.Build
 import android.os.IBinder
 import android.util.Log
 import android.view.WindowManager
-import androidx.annotation.RequiresApi
 import com.hjq.permissions.XXPermissions
 import io.flutter.embedding.android.FlutterActivity
 import io.flutter.embedding.engine.FlutterEngine
@@ -31,7 +30,6 @@ class MainActivity : FlutterActivity() {
     private val logTag = "mMainActivity"
     private var mainService: MainService? = null
 
-    @RequiresApi(Build.VERSION_CODES.M)
     override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
         super.configureFlutterEngine(flutterEngine)
         if (MainService.isReady) {
@@ -208,6 +206,17 @@ class MainActivity : FlutterActivity() {
                         result.success(false)
                     }
                 }
+                SYNC_APP_DIR_CONFIG_PATH -> {
+                    if (call.arguments is String) {
+                        val prefs = getSharedPreferences(KEY_SHARED_PREFERENCES, MODE_PRIVATE)
+                        val edit = prefs.edit()
+                        edit.putString(KEY_APP_DIR_CONFIG_PATH, call.arguments as String)
+                        edit.apply()
+                        result.success(true)
+                    } else {
+                        result.success(false)
+                    }
+                }
                 else -> {
                     result.error("-1", "No such method", null)
                 }

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

@@ -35,6 +35,7 @@ import androidx.annotation.RequiresApi
 import androidx.core.app.ActivityCompat
 import androidx.core.app.NotificationCompat
 import androidx.core.content.ContextCompat
+import io.flutter.embedding.android.FlutterActivity
 import java.util.concurrent.Executors
 import kotlin.concurrent.thread
 import org.json.JSONException
@@ -143,7 +144,11 @@ class MainService : Service() {
 
     // jvm call rust
     private external fun init(ctx: Context)
-    private external fun startServer()
+
+    /// When app start on boot, app_dir will not be passed from flutter
+    /// so pass a app_dir here to rust server
+    private external fun startServer(app_dir: String)
+    private external fun startService()
     private external fun onVideoFrameUpdate(buf: ByteBuffer)
     private external fun onAudioFrameUpdate(buf: ByteBuffer)
     private external fun translateLocale(localeName: String, input: String): String
@@ -199,7 +204,12 @@ class MainService : Service() {
         }
         updateScreenInfo(resources.configuration.orientation)
         initNotification()
-        startServer()
+
+        // keep the config dir same with flutter
+        val prefs = applicationContext.getSharedPreferences(KEY_SHARED_PREFERENCES, FlutterActivity.MODE_PRIVATE)
+        val configPath = prefs.getString(KEY_APP_DIR_CONFIG_PATH, "") ?: ""
+        startServer(configPath)
+
         createForegroundNotification()
     }
 
@@ -279,6 +289,10 @@ class MainService : Service() {
         super.onStartCommand(intent, flags, startId)
         if (intent?.action == ACT_INIT_MEDIA_PROJECTION_AND_SERVICE) {
             createForegroundNotification()
+
+            if (intent.getBooleanExtra(EXT_INIT_FROM_BOOT, false)) {
+                startService()
+            }
             Log.d(logTag, "service starting: ${startId}:${Thread.currentThread()}")
             val mediaProjectionManager =
                 getSystemService(MEDIA_PROJECTION_SERVICE) as MediaProjectionManager

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

@@ -27,6 +27,7 @@ import java.util.*
 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_INIT_FROM_BOOT = "EXT_INIT_FROM_BOOT"
 const val EXT_MEDIA_PROJECTION_RES_INTENT = "MEDIA_PROJECTION_RES_INTENT"
 const val EXT_LOGIN_REQ_NOTIFY = "LOGIN_REQ_NOTIFY"
 
@@ -41,9 +42,11 @@ const val RES_FAILED = -100
 const val START_ACTION = "start_action"
 const val GET_START_ON_BOOT_OPT = "get_start_on_boot_opt"
 const val SET_START_ON_BOOT_OPT = "set_start_on_boot_opt"
+const val SYNC_APP_DIR_CONFIG_PATH = "sync_app_dir"
 
 const val KEY_SHARED_PREFERENCES = "KEY_SHARED_PREFERENCES"
 const val KEY_START_ON_BOOT_OPT = "KEY_START_ON_BOOT_OPT"
+const val KEY_APP_DIR_CONFIG_PATH = "KEY_APP_DIR_CONFIG_PATH"
 
 @SuppressLint("ConstantLocale")
 val LOCAL_NAME = Locale.getDefault().toString()