Bug 24111 - Navigate back to the previous page via swiping from left edge, cause blank screen.
Summary: Navigate back to the previous page via swiping from left edge, cause blank sc...
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: 1.3.0
Hardware: PC Mac OS
: Normal normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2014-10-28 13:20 UTC by Jun Zhang
Modified: 2015-01-12 17:09 UTC (History)
6 users (show)

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

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Description Jun Zhang 2014-10-28 13:20:48 UTC
Mine is iPhone 5 with iOS 8.1 btw.
await this.Navigation.PushAsync(page); is not working correctly.

To reproduce this bug in FormsGallery app please do: 
1. Click Label cell from ListView 
2. Now on the LabelPage, swipe from left edge to right a bit, hold, then swipe to left again, so you're now still on the LabelPage. 
3. Now click Forms Gallery on top left of NavigationBar. 
4. Now you will see either blank page, or the app just crashes.

Here is the youtube video: www.youtube.com/embed/8sHzqSBhFPE

Note: Xamarin.Forms( is causing this bug, cause 1.2.2 did work, Please fix it. 
Here is the link I posted on X.F. forum: http://forums.xamarin.com/discussion/26185/destination-page-displays-blank-if-i-swipe-from-left-edge-of-the-origin-page
Comment 1 Shruti 2014-11-03 03:57:55 UTC
I have checked this issue with following steps given in comment(0) and able to reproduce this issue.
Here is the screencast regarding same : http://screencast.com/t/DTvoT7OqZkvg

Environment Info :
=== Xamarin Studio ===

Version 5.5.3 (build 6)
Installation UUID: 67eaf3b4-f8a7-4ab4-a9df-3197350ca5dc
	Mono 3.10.0 ((detached/fe854ad)
	GTK+ 2.24.23 (Raleigh theme)

	Package version: 310000025

=== Xamarin.Android ===

Version: 4.18.1 (Business Edition)
Android SDK: /Users/ixamarin78/Desktop/android-sdk-macosx
	Supported Android versions:
		2.1    (API level 7)
		2.2    (API level 8)
		2.3    (API level 10)
		3.1    (API level 12)
		3.2    (API level 13)
		4.0    (API level 14)
		4.0.3  (API level 15)
		4.1    (API level 16)
		4.2    (API level 17)
		4.3    (API level 18)
		4.4    (API level 19)
		4.4.87 (API level 20)
		4.5    (API level 21)
Java SDK: /usr
java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-462-11M4609)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-462, mixed mode)

=== Apple Developer Tools ===

Xcode 6.1 (6604)
Build 6A1052d

=== Xamarin.iOS ===

Version: (Business Edition)
Hash: 08968c4
Build date: 2014-10-20 21:48:06-0400

=== Xamarin.Mac ===

Version: (Business Edition)

=== Build Information ===

Release ID: 505030006
Git revision: fbe3e9453daf6a3bb9a9709ed22bec35f7c9056b
Build date: 2014-10-23 13:08:38-04
Xamarin addins: e44add2b39de4dd57c0742bb2e620dfad84c64c6

=== Operating System ===

Mac OS X 10.9.4
Darwin XamnewiMac.local 13.3.0 Darwin Kernel Version 13.3.0
    Tue Jun  3 21:27:35 PDT 2014
    root:xnu-2422.110.17~1/RELEASE_X86_64 x86_64
Comment 2 Jun Zhang 2014-11-04 10:29:33 UTC
Nice. Please let us know if you guys fixed it. 
Right now xamarin.forms( is still having this bug.
Comment 3 Paul Hazlett 2014-11-13 15:03:25 UTC
This seems like it needs to be a higher priority because this type of navigation is fundamental to the user experience.

Can a fix for this be expedited?
Comment 4 Jun Zhang 2014-11-14 13:26:47 UTC
Hi XF team, it's really causing big issue for our customers. And I think any XF app with Navigation will not survive this bug.
Comment 5 Jason Smith [MSFT] 2015-01-12 17:09:46 UTC
This is fixed