fix: 彻底修复画中画异常触发

android/app/src/main/kotlin/com/orz12/PiliPalaX/MainActivity.kt

@@ -0,0 +1,24 @@
+package com.orz12.PiliPalaX
+
+import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.plugin.common.MethodChannel
+import com.ryanheise.audioservice.AudioServiceActivity
+
+class MainActivity : AudioServiceActivity() {
+    private lateinit var methodChannel: MethodChannel
+
+    override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
+        super.configureFlutterEngine(flutterEngine)
+        methodChannel = MethodChannel(flutterEngine!!.getDartExecutor()!!.getBinaryMessenger(), CHANNEL)
+    }
+
+    override fun onUserLeaveHint() {
+        super.onUserLeaveHint()
+        methodChannel.invokeMethod("onUserLeaveHint", null)
+    }
+
+    companion object {
+        private const val CHANNEL = "onUserLeaveHint"
+    }
+}