maRci002

> I'm assigning myself as I plan to finish this PR. @maRci002 I plan to push some updates while keeping your original commits. Thanks @justinmc for taking this on! I'll...

My concern is that `_PredictiveBackGestureDetectorState` is calling [`TransitionRoute.handleCommitBackGesture()`](https://github.com/flutter/flutter/blob/7a4b25601468943c8620984a63061286777b4050/packages/flutter/lib/src/widgets/routes.dart#L589), which is responsible for closing the current route: ```dart @override void handleCommitBackGesture() { phase = _PredictiveBackPhase.commit; widget.route.handleCommitBackGesture(); // here startBackEvent = currentBackEvent...

AFAIK, pointers are canceled right after navigation https://github.com/flutter/flutter/blob/b79ee9282c3403197dece9dfeb82a90abe85a5f3/packages/flutter/lib/src/widgets/navigator.dart#L5620-L5634

This is the expected behavior; see the [document](https://api.flutter.dev/flutter/widgets/MediaQueryData/size.html). > For instance, during startup, especially in release mode, the first returned size might be [Size.zero](https://api.flutter.dev/flutter/dart-ui/Size/zero-constant.html).