Bug 26584 - [iOS] Using custom render locks up the app on returning from background
Summary: [iOS] Using custom render locks up the app on returning from background
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: 1.3.1
Hardware: PC Mac OS
: Normal normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2015-01-30 01:57 UTC by Prashant Cholachagudda
Modified: 2016-04-08 19:26 UTC (History)
6 users (show)

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

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Description Prashant Cholachagudda 2015-01-30 01:57:48 UTC
After upgrading to Unified APIs Forms app locks up and throws an exception on returning from Background

We get the following exception, when the app comes from the background to the foreground.

{System.InvalidCastException: Unable to cast object of type 'Google.Maps.MapView' to type 'MapKit.MKMapView'.
at Xamarin.Forms.Maps.iOS.MapRenderer.MkMapViewOnRegionChanged (System.Object sender, MapKit.MKMapViewChangeEventArgs mkMapViewChangeEventArgs) [0x00000] in <filename unknown>:0
at MapKit.MKMapView+_MKMapViewDelegate.RegionChanged (MapKit.MKMapView mapView, Boolean animated) [0x00014] in /Developer/MonoTouch/Source/monotouch/src/build/native/MapKit/MKMapView.g.cs:1771
at (wrapper managed-to-native) UIKit.UIApplication:UIApplicationMain (int,string[],intptr,intptr)
at UIKit.UIApplication.Main (System.String[] args, IntPtr principal, IntPtr delegate) [0x00005] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIApplication.cs:62
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x00038] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIApplication.cs:46
at GPSSecurity.iOS.Application.Main (System.String[] args) [0x00002] in g:\GPSSecurity Apps\Branches\2.3\GPSSecurity\GPSSecurity.iOS\Main.cs:17 }

Test case and steps to reproduce are in the private comment below
Comment 3 Rui Marinho 2016-04-08 19:26:18 UTC
Thank you for your bug report. As we have not received the information requested, we cannot properly triage your bug and are marking it resolved.

Warm regards,
Xamarin Forms Team