[android] Make ExclusiveAppComponent accessible to FlutterFragment's subclasses similar to FlutterActivity's

[0xZOne]

In the FlutterActivity subclass, we can access the instance of FlutterActivityAndFragmentDelegate which is protected, as below show.

public class FlutterActivityEx extends FlutterActivity {
    private void performAttach() {
          // Attach plugins to the activity.
          // getFlutterEngine().getActivityControlSurface().attachToActivity(getActivity(), getLifecycle());
          getFlutterEngine().getActivityControlSurface().attachToActivity(delegate, getLifecycle());
    }
}

But, in FlutterFragment, the instance of FlutterActivityAndFragmentDelegate is package-level access. so we expect to modify the delegate member to protected, similar to FlutterActivity. Make sure FlutterActivity/FlutterFragment subclasses can call flutterEngine.getActivityControlSurface().attachToActivity(delegate, getLifecycle()).

Related issues: #issues/93905

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[blasten]

See comment flutter/flutter#93905 (comment)

I don't think this is the right fix

[0xZOne]

As stated in the comments flutter/flutter#93905 (comment), there are practical demands.

[dnfield]

Can we instead expose the method we actually need to subclasses.

[0xZOne]

Can we instead expose the method we actually need to subclasses.

Thank you for your reply.

In this case, I think exposing the delegate of FlutterFragment as a protected member to subclasses is the least costly solution.

[DavidMGT]

请尽快推进吧我们升级了 最新的flutter版本无法使用了

[gaoyangcr7]

关注

[Duane030414]

mark

[houziruinb87]

same issue

[chinmaygarde]

It seems like @blasten and @0xZOne are in disagreement about this approach and @dnfield has a suggested workaround. Since there is not consensus among reviewers about this being the right approach, I don't think progress here is possible. Closing.

[0xZOne]

It seems like @blasten and @0xZOne are in disagreement about this approach and @dnfield has a suggested workaround. Since there is not consensus among reviewers about this being the right approach, I don't think progress here is possible. Closing.

I admit @dnfield's suggested workaround is more elegant. ;) I have reworked.