Is there idea FlutterView(Android) intercept the 'back' keydown?

[tain335]

No description provided.

[abarth]

You'll want to add something like this to your activity:

    @Override
    public void onBackPressed() {
        if (flutterView != null) {
            flutterView.popRoute();
            return;
        }
        super.onBackPressed();
    }

[tain335]

But if FlutterView has no any route can pop, and the app should exit(in my usecase), is there a way to check the route can pop?

[abarth]

If you try to pop a route and the view doesn't have a route that it can pop, it will end the current activity:

https://github.com/flutter/flutter/blob/master/packages/flutter/lib/src/widgets/binding.dart#L166

[tain335]

OH, it is clear in my case.And if I want to do other thing(not pop a route) just make a toast or make a dialog in FlutterView, how can do it?

[Hixie]

You can add a WidgetsBindingObserver that listens to didPopRoute, and returns true.

[github-actions]

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