Using Control inside of GestureDetector

[mcgaryp]

I'v noticed that when using this widget inside of an other gesture detector the Gesture Manager Arena will choose the Horizontal or Vertical Gesture before the Pan gesture of the Joystick.

I did some digging, looks like a possible solution is to Build a CustomPanGestureRecognizer within a RawGestureDetector. I tried implementing this but was unsuccessful due to my lack of understanding off GestureDetection in flutter. Here is a starting point that might help you. I'd be very interested in seeing this through as it relies on a rather large project I am building.

The Joy Stick View is within a multipage application and I use Flutter Swiper to navigate between pages.

You can see from the log that the Pan is winner when the gesture is a Verical Direction, but when it is in a Horizontal Direction the Pan does not win.

Here is a log of the Arena Manager I/flutter (24667): Gesture arena 1271 ❙ ★ Opening new gesture arena. I/flutter (24667): Gesture arena 1271 ❙ Adding: PanGestureRecognizer#d3ee9(debugOwner: GestureDetector, start behavior: start) I/flutter (24667): Gesture arena 1271 ❙ Adding: HorizontalDragGestureRecognizer#1757e(start behavior: start) I/flutter (24667): Gesture arena 1271 ❙ Adding: TapGestureRecognizer#9cb38(debugOwner: GestureDetector, state: ready, button: 1) I/flutter (24667): Gesture arena 1271 ❙ Closing with 3 members. I/flutter (24667): Gesture arena 1271 ❙ Rejecting: TapGestureRecognizer#9cb38(debugOwner: GestureDetector, state: possible, button: 1) I/flutter (24667): Gesture arena 1271 ❙ Accepting: PanGestureRecognizer#d3ee9(debugOwner: GestureDetector, start behavior: start) I/flutter (24667): Gesture arena 1271 ❙ Self-declared winner: PanGestureRecognizer#d3ee9(debugOwner: GestureDetector, start behavior: start) D/ViewRootImpl@a3d787b[MainActivity](24667): ViewPostIme pointer 1 D/ViewRootImpl@a3d787b[MainActivity](24667): ViewPostIme pointer 0 I/flutter (24667): Gesture arena 1272 ❙ ★ Opening new gesture arena. I/flutter (24667): Gesture arena 1272 ❙ Adding: PanGestureRecognizer#d3ee9(debugOwner: GestureDetector, start behavior: start) I/flutter (24667): Gesture arena 1272 ❙ Adding: HorizontalDragGestureRecognizer#1757e(start behavior: start) I/flutter (24667): Gesture arena 1272 ❙ Adding: TapGestureRecognizer#9cb38(debugOwner: GestureDetector, state: ready, button: 1) I/flutter (24667): Gesture arena 1272 ❙ Closing with 3 members. I/flutter (24667): Gesture arena 1272 ❙ Rejecting: TapGestureRecognizer#9cb38(debugOwner: GestureDetector, state: possible, button: 1, sent tap down) I/flutter (24667): Gesture arena 1272 ❙ Accepting: HorizontalDragGestureRecognizer#1757e(start behavior: start) I/flutter (24667): Gesture arena 1272 ❙ Self-declared winner: HorizontalDragGestureRecognizer#1757e(start behavior: start)

[artur-ios-dev]

Hello, could you create a sample project where I can reproduce the issue?

Thanks

[mcgaryp]

I would believe that this could also happen with a list view or some other scrolling view as they also contain drag gestures

example.txt