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Created attachment 12616 [details]
There are two Xamarin solutions one written in Xamarin iOS which works on iOS 7.1.2 and other written in Xamarin Forms iOS that crashes on button press on iOS 7.1.2
While creating remote event handler for lockskreen buttons for our music player i did notice that Xamarin Forms crashes in the native code on iPhone 4 running iOS 7.1.2 when i press any button in lockscreen or that toolbar that slides from bottom.
I did found out that the issue is somewhere in "Xamarin.Forms.Platform.iOS.FormsApplicationDelegate" FinishedLaunching method... If i comment 'base.FinishedLaunching' out in AppDelegate the buttons work on iOS 7.1.2 and there is no crash...
I provided two solutions that demonstrates this problem in Xamarin Forms.
Closing due to iOS 7 being obsolete in terms of being testable at this point in time.