Bug 46163 - PanGestureRecognizer Completed doesn't fire in UWP when pointer off the page
Summary: PanGestureRecognizer Completed doesn't fire in UWP when pointer off the page
Alias: None
Product: Forms
Classification: Xamarin
Component: Windows ()
Version: unspecified
Hardware: PC Windows
: Normal normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2016-10-28 19:49 UTC by Chris Turner
Modified: 2017-09-30 11:36 UTC (History)
4 users (show)

Tags: uwp, pangesturerecognizer, ac
Is this bug a regression?: ---
Last known good build:

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Description Chris Turner 2016-10-28 19:49:44 UTC
When you use a PanGestureRecognizer in a UWP app, if you move the pointer off the app's screen area the GestureStatus.Completed doesn't get triggered in the PanUpdated event.

This can happen when running on a device if you perform a long swipe but is easier to reproduce by running on the desktop and panning with the mouse.

Use the attached demo app to reproduce.
Comment 1 Chris Turner 2016-10-28 21:26:00 UTC
In case someone else has experienced the same problem I have created a work-around by handling the PointerExited event in the native UWP control and feeding this event back to my xamarin forms control.
Comment 2 E.Z. Hart [MSFT] 2016-10-31 15:07:41 UTC
(In reply to Chris Turner from comment #0)
> Use the attached demo app to reproduce.


You mentioned an attachment but I don't see one in the Bugzilla case. Could you try uploading it again? 

Comment 3 Chris Turner 2016-10-31 18:08:36 UTC

I think the attachment may have been rejected because it was too large.  You can download it here: 
Comment 4 E.Z. Hart [MSFT] 2016-10-31 18:42:05 UTC
Confirmed. Note that this is a desktop issue; it works fine on the phone. Also happens in Windows 8.1 on the desktop.