Bug 34929 - Crash in tap on ContextActionCell
Summary: Crash in tap on ContextActionCell
Status: RESOLVED FIXED
Alias: None
Product: Forms
Classification: Xamarin
Component: iOS ()
Version: 1.5.0
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2015-10-16 02:56 UTC by Simon Taylor
Modified: 2016-06-28 15:07 UTC (History)
2 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED FIXED

Description Simon Taylor 2015-10-16 02:56:36 UTC
Got this stack trace on Xamarin Insights, sorry, not easily reproducible. I think you need to handle the case where uITableView.IndexPathForRowAtPoint() returns null in the ShouldReceiveTouch handler.

Message:
Object reference not set to an instance of an object
Stack Trace:
Xamarin.Forms.Platform.iOS.ContextActionsCell+SelectGestureRecognizer.Tapped(UIKit.UIGestureRecognizer recognizer)
UIKit.UITapGestureRecognizer+Callback.Activated(UIKit.UITapGestureRecognizer sender)
UIKit.UIApplication.Main(System.String[] args, IntPtr principal, IntPtr delegate)
UIKit.UIApplication.Main(System.String[] args, System.String principalClassName, System.String delegateClassName)
Oban.Mobile.iOS.Application.Main(System.String[] args)
Comment 1 Jason Smith [MSFT] 2016-04-13 19:02:18 UTC
Should be easy enough to fix even though we have no idea what causes it, null check all the things in that method.
Comment 2 Rui Marinho 2016-06-28 15:07:22 UTC
Thank you for taking the time to submit this report. After reviewing the description of this bug, we believe it no longer affects the current version of Xamarin.Forms. If you are still experiencing the issue after updating your packages, please reopen this report with an attached reproduction.
 
For your convenience, we have created some reproduction best practices viewable here: https://gist.github.com/jassmith/92405c300e54a01dcc6d