You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
Describe the bug
I'm getting a NullException when navigating backwards (to a previous page).
I don't remember ever using that iOSViewStyleEffect, so I have no control over it.
System.NullReferenceException: Object reference not set to an instance of an object
at Sharpnado.Presentation.Forms.iOS.Effects.iOSViewStyleEffect.OnDetached () [0x0001c] in <ec6c6356fc024ba987678ca56d694c54>:0
at Xamarin.Forms.Effect.SendDetached () [0x00009] in D:\a\1\s\Xamarin.Forms.Core\Effect.cs:62
at Xamarin.Forms.PlatformEffect`2[TContainer,TControl].SendDetached () [0x00000] in D:\a\1\s\Xamarin.Forms.Core\PlatformEffect.cs:23
at Xamarin.Forms.Element.set_EffectControlProvider (Xamarin.Forms.IEffectControlProvider value) [0x0002e] in D:\a\1\s\Xamarin.Forms.Core\Element.cs:238
at Xamarin.Forms.Platform.iOS.EffectUtilities.RegisterEffectControlProvider (Xamarin.Forms.IEffectControlProvider self, Xamarin.Forms.IElementController oldElement, Xamarin.Forms.IElementController newElement) [0x0000e] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].SetElement (TElement element) [0x00144] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing) [0x0008c] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.ViewRenderer`2[TView,TNativeView].Dispose (System.Boolean disposing) [0x0005c] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.ButtonRenderer.Dispose (System.Boolean disposing) [0x00064] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.10.0.157/src/Xamarin.iOS/Foundation/NSObject2.cs:147
at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose (System.Boolean disposing) [0x0003f] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose () [0x00000] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing) [0x00058] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.10.0.157/src/Xamarin.iOS/Foundation/NSObject2.cs:147
at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose (System.Boolean disposing) [0x0003f] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose () [0x00000] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing) [0x00058] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.10.0.157/src/Xamarin.iOS/Foundation/NSObject2.cs:147
at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose (System.Boolean disposing) [0x0003f] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose () [0x00000] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing) [0x00058] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.10.0.157/src/Xamarin.iOS/Foundation/NSObject2.cs:147
at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose (System.Boolean disposing) [0x0003f] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose () [0x00000] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing) [0x00058] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.10.0.157/src/Xamarin.iOS/Foundation/NSObject2.cs:147
at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose (System.Boolean disposing) [0x0003f] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose () [0x00000] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.PageRenderer.Dispose (System.Boolean disposing) [0x00070] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.10.0.157/src/Xamarin.iOS/Foundation/NSObject2.cs:147
at Xamarin.Forms.Platform.iOS.DisposeHelpers.DisposeModalAndChildRenderers (Xamarin.Forms.Element view) [0x00041] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Platform.iOS.Platform.Xamarin.Forms.INavigation.PopModalAsync (System.Boolean animated) [0x00143] in <0da03a4594684a9bbf17d4a99d39fbc2>:0
at Xamarin.Forms.Application+NavigationImpl.OnPopModal (System.Boolean animated) [0x0005d] in D:\a\1\s\Xamarin.Forms.Core\Application.cs:380
at TestApp.Helpers.NavigationHelper.GoBackAsync (System.Boolean animated) [0x00030] in /Users/development/Projects/Xamarin.Demos2/TestApp/Helpers/NavigationHelper.cs:74
at TestApp.ViewModel.SignUpViewModel.Back_Executed () [0x000b6] in /Users/development/Projects/Xamarin.Demos2/TestApp/ViewModel/SignUpViewModel.cs:114
at TestApp.ViewModel.SignUpViewModel.<.ctor>b__24_0 () [0x0001f] in /Users/development/Projects/Xamarin.Demos2/TestApp/ViewModel/SignUpViewModel.cs:32
at System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.<ThrowAsync>b__6_0 (System.Object state) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.10.0.157/src/Xamarin.iOS/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/AsyncMethodBuilder.cs:1023
at Foundation.NSAsyncSynchronizationContextDispatcher.Apply () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.10.0.157/src/Xamarin.iOS/Foundation/NSAction.cs:178
at at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)
at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.10.0.157/src/Xamarin.iOS/UIKit/UIApplication.cs:86
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0000e] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.10.0.157/src/Xamarin.iOS/UIKit/UIApplication.cs:65
at TestApp.iOS.Application.Main (System.String[] args) [0x00001] in /Users/development/Projects/Xamarin.Demos2/TestApp.iOS/Main.cs:17
Platform:
Describe the bug
I'm getting a
NullException
when navigating backwards (to a previous page).I don't remember ever using that
iOSViewStyleEffect
, so I have no control over it.View
orView.Layer
may be null in here:Sharpnado.Presentation.Forms/Sharpnado.Presentation.Forms.iOS/Effects/ViewStyleEffect .cs
Line 62 in 71b1ab7
To Reproduce
Steps to reproduce the behavior:
Exceptions
Test project
https://github.com/NickeManarin/Xamarin.Demos2
The text was updated successfully, but these errors were encountered: