[Bug] [iOS] TouchEffect conflicts with InteractivePopGestureRecognizer and kills page gestures #1810
Description
IOS only
scenario: using a toucheffect on a view in a non-root page in the navigation stack (ie one that is subject to the NavigationController.InteractivePopGestureRecognizer = swipe to the right from the left hand side to pop the page)
Having a scrollable control (scrollview, listview, collectionview etc) and scrolling along the left hand side.
Description
Once the toucheffect has been activated, scrolling on the left hand edge of the scrollable control causes all gestures to die on the page ie the scroll dies and so does the "swipe right to pop page" gesture.
Stack Trace
n/a
Link to Reproduction Sample
https://github.com/ThomasAdrian/TouchTest
Steps to Reproduce
see above
Expected Behavior
page gestures should be unaffected by toucheffect execution
Actual Behavior
page gestures cease to work
Basic Information
- Version with issue: latest
- Last known good version: unknown
- IDE: vs2022
- Platform Target Frameworks:
- iOS: 15.2
- Android: n/a
- UWP: unknown
- Android Support Library Version: n/a
- Nuget Packages:
- Affected Devices: iphone 8 (15.2) physical, ipad air 2 (15.2) physical
Workaround
disable NavigationController.InteractivePopGestureRecognizer with custom page renderer:
namespace TouchTest.iOS
{
class CustomPageRenderer : PageRenderer
{
public override void ViewWillLayoutSubviews()
{
base.ViewWillLayoutSubviews();
if (NavigationController != null)
{
NavigationController.InteractivePopGestureRecognizer.Enabled = false;
}
}
}
}