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Example projects attached to demonstrate problem.
In the Nuget published pre-release of Xamarin 1.3, if you have two web based images in a list view attempt to load at the same time, the app will crash, thus rendering ListView useless for any scenarios where web based images are involved.
Created attachment 8754 [details]
Demo projects of problem
You will need to restore the nuget packages as I removed them to reduce the size of the zip, but be careful not to install nuget 1.3 in the non-nuget based version where this bug doesn't exist :)
Created attachment 8759 [details]
I have checked this issue and able to reproduce with the help of bug description and observed that Loading multiple images from a UriImageSource in a list view at the same time giving an unhandled exception.
Its working fine with Xamarin.forms 220.127.116.1162 and application is getting crashed with Xamarin.forms 18.104.22.16875-pre1.
Screencast : http://www.screencast.com/t/CICnsgrf
build output https://gist.github.com/Shruti360/9b0340742a7ae21f726a
Microsoft Visual Studio Professional 2013
Version 12.0.30723.00 Update 3
Microsoft .NET Framework
Installed Version: Professional
Xamarin 22.214.171.124 (8ca7d11db8a6f874c6cd2de6d9ca0f511867ce91)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.
Xamarin.Android 126.96.36.199 (5474129af31e9d3a86cb7482c7c5c7a30ad315f1)
Visual Studio plugin to enable development for Xamarin.Android.
Xamarin.iOS 188.8.131.52 (209abebbd8f1a292d042420edb45fa5fbd3f017b)
Visual Studio extension to enable development for Xamarin.iOS.
This is fixed in 1.3.0 final release.