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ListView is Crashing on Windows Phone Emulator and on my Lumia 930 Device;
On Android it Works perfectly;
THIS IS A DEAL BREAK WHILE THINKING ABOUT ADOPTING XAMARIN ON MY COMPANY.
The listview has just 23 items
** FOLLOW THE SAMPLE ATTACHED AND THE STEPS TO REPRODUCE DE BUG;
1) Download the Sample: http://1drv.ms/1JvAglf
2) Open the solution on Visual Studio 2015 RC on Windows 10 TP Build 10130
3) Run the Epimed.Mobile.NAS.WinPhone project
4) HIT THE "LOGIN" BUTTON ON MAINPAGE
5) Scrool the list all way down
6) Scrool the list all way up
And see the bug.
It's hard to say it but this is a basic bug for a tool supposed to support cross platform development.
If Xamarin doesn't provide us a workaround AND a dead line to solve this bug, probably my team will choose another tool.
Follows the stacktrace:
Message " [Line: 0 Position: 0]" string
at MS.Internal.XcpImports.CheckHResult(UInt32 hr)
at MS.Internal.XcpImports.UIElement_Measure(UIElement element, Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at Microsoft.Phone.Controls.LongListSelector.RealizeDisplayItem(Iterator`1 iterator, RealizeOptions options)
at Microsoft.Phone.Controls.LongListSelector.PrependElement(RealizedRange range)
at Microsoft.Phone.Controls.LongListSelector.HealElements(Rect requireRect, Rect allowRect, Boolean& areBoundsUpdated)
at Microsoft.Phone.Controls.LongListSelector.Balance(Boolean containerViewport)
at Microsoft.Phone.Controls.LongListSelector.MeasureOverride(Size availableSize)
at Xamarin.Forms.Platform.WinPhone.FixedLongListSelector.MeasureOverride(Size availableSize)
at System.Windows.FrameworkElement.MeasureOverride(IntPtr nativeTarget, Double inWidth, Double inHeight, Double& outWidth, Double& outHeight)
This I believe is fixed in 1.4.4-pre1 (which is not released yet). The cause was due to a potential case where infinite could be passed to measure with headers.
If after getting 1.4.4-pre1 this issue still exists for you please re-open.
Using the sample in the description, I was able to reproduce the issue in the following Xamarin.Forms versions:
Microsoft Visual Studio Community 2015
Version 14.0.23107.0 D14REL
Microsoft .NET Framework
Installed Version: Community
Visual Basic 2015 00322-20000-00000-AA926
Microsoft Visual Basic 2015
Visual C# 2015 00322-20000-00000-AA926
Microsoft Visual C# 2015
Visual C++ 2015 00322-20000-00000-AA926
Microsoft Visual C++ 2015
Visual F# 2015 RC 00322-20000-00000-AA926
Microsoft Visual F# 2015 RC
Windows Phone SDK 8.0 - ENU 00322-20000-00000-AA926
Windows Phone SDK 8.0 - ENU
Application Insights Tools for Visual Studio Package 1.0
Application Insights Tools for Visual Studio
ASP.NET and Web Tools 14.0.20626.0
ASP.NET and Web Tools
ASP.NET Web Frameworks and Tools 2013 5.2.30624.0
For additional information, visit http://www.asp.net/
Common Azure Tools 1.5
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.
Generates unit test code for methods in classes under test.
Microsoft Azure Mobile Services Tools 1.4
Microsoft Azure Mobile Services Tools
NuGet Package Manager 3.0.0
NuGet Package Manager in Visual Studio. For more information about NuGet, visit http://docs.nuget.org/.
PreEmptive Analytics Visualizer 1.2
Microsoft Visual Studio extension to visualize aggregated summaries from the PreEmptive Analytics product.
Python Tools for Visual Studio 2.2.30718.00
Python Tools for Visual Studio provides IntelliSense, projects, templates, Interactive windows, and other support for Python developers.
Python Tools for Visual Studio - Django Integration 2.2.30718.00
Provides templates and integration for the Django web framework.
Python Tools for Visual Studio - Profiling Support 2.2.30718.00
Profiling support for Python projects.
SQL Server Data Tools 14.0.50616.0
Microsoft SQL Server Data Tools
Visual Studio Tools for Universal Windows Apps 14.0.23121.00 D14OOB
The Visual Studio Tools for Universal Windows apps allow you to build a single universal app experience that can reach every device running Windows 10: phone, tablet, PC, and more. It includes the Microsoft Windows 10 Software Development Kit.
Xamarin 3.11.837.0 (f10676f)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.
Xamarin.Android 188.8.131.52 (f98871a95a479f6d71b3067b7e5834d41fcb2118)
Visual Studio plugin to enable development for Xamarin.Android.
Xamarin.iOS 184.108.40.206 (6db87c53c073f4af2f5247fb738a27ea08c094fd)
Visual Studio extension to enable development for Xamarin.iOS.
Xamarin.iOS Unified Migration 1.0
Automated migration for Xamarin iOS Classic projects to Unified
Early preview of Xamarin Test Cloud integration
Per comment 4, reopening this bug report.
We're having exactly the same problem as listed above.
I am concerned that this has been opened since July and it still isn't resolved and while WP may not be a high priority for most users and/or Xamarin, the reason we went with Xamarin was to be able to provide a solution for all 3 OS, not 2.
Do you have any indication as to when this will be resolved as this basically means that we cannot release a WP app without having a fix for this first. It's a total show breaker for us!
Should be fixed in 1.5.1-pre1