[Android] [add-to-app] Detaching the |FlutterView| from the engine in Flutter will trigger GC twice. #130379
Description
When function |FlutterView#detachFromFlutterEngine| is executed, there will be two |onSurfaceDestroyed| callbacks which in turn trigger two GC operations (Dart_NotifyDestroyed).
In the scenario where multiple FlutterViews reuse the same engine, GC is relatively time-consuming, which slows down the page rendering speed.
1st:
[ ] E/xlog (24048): at io.flutter.embedding.engine.FlutterJNI.onSurfaceDestroyed(FlutterJNI.java:658)
[ ] E/xlog (24048): at io.flutter.embedding.engine.renderer.FlutterRenderer.stopRenderingToSurface(FlutterRenderer.java:373)
[ ] E/xlog (24048): at io.flutter.embedding.android.FlutterView.detachFromFlutterEngine(FlutterView.java:1293)
2nd:
[ ] E/xlog (24048): at io.flutter.embedding.engine.FlutterJNI.onSurfaceDestroyed(FlutterJNI.java:658)
[ ] E/xlog (24048): at io.flutter.embedding.engine.renderer.FlutterRenderer.stopRenderingToSurface(FlutterRenderer.java:373)
[ ] E/xlog (24048): at io.flutter.embedding.android.FlutterTextureView.disconnectSurfaceFromRenderer(FlutterTextureView.java:249)
[ ] E/xlog (24048): at io.flutter.embedding.android.FlutterTextureView.detachFromRenderer(FlutterTextureView.java:174)
[ ] E/xlog (24048): at io.flutter.embedding.android.FlutterView.detachFromFlutterEngine(FlutterView.java:1300)
flutter doctor -v
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