Ensure the destructor is called since it destroys the EGLSurface before creating a new onscreen surface.

[Guokai-Cheng]

Description

Detach from engine((FlutterView.detachFromFlutterEngine)) but FlutterTextureView / FlutterSurfaceView surface is not destroyed, then reattach to the engine(FlutterView.attachToFlutterEngine), it will crash !!!

Related Issues

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Tests

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[Guokai-Cheng]

@googlebot I signed it!

[Guokai-Cheng]

@googlebot I signed it!

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[scutlight]

@liyuqian : Seems there is a bug of github, no reviewer is assigned, would you please have a look? Thanks!

[liyuqian]

Thanks for the PR! Would it be possible to add a unit test that would fail without this fix?

[Guokai-Cheng]

Thanks for the PR! Would it be possible to add a unit test that would fail without this fix?

I have tried to add some tests for this case, but I found that this problem only appeared on Android platform, and there is no any test suite that can run on Android platform, so i give up ...