Xamarin forms iOS Cannot access a disposed object

[jeroduck]

🐛 Bug Report

On Xamarin Forms, everything works on Android, but on iOS, I received on execution:

An error occurred: 'Cannot access a disposed object

Object name: 'Airbnb.Lottie.LOTAnimationView'.'. Callstack: ' at ObjCRuntime.ThrowHelper.ThrowObjectDisposedException (System.Object o) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/16.4.0.5/src/Xamarin.iOS/ObjCRuntime/ThrowHelper.cs:52 at ObjCRuntime.NativeObjectExtensions.GetNonNullHandle (ObjCRuntime.INativeObject self, System.String argumentName) [0x0001b] in /Library/Frameworks/Xamarin.iOS.framework/Versions/16.4.0.5/src/Xamarin.iOS/ObjCRuntime/INativeObject.cs:35 at UIKit.UIView.AddSubview (UIKit.UIView view) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/16.4.0.5/src/Xamarin.iOS/UIKit/UIView.g.cs:240 at Xamarin.Forms.Platform.iOS.ViewRenderer2[TView,TNativeView].SetNativeControl (TNativeView uiview) [0x00047] in D:\a\1\s\Xamarin.Forms.Platform.iOS\ViewRenderer.cs:244 at Lottie.Forms.Platforms.Ios.AnimationViewRenderer.OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs1[TElement] e) [0x002ea] in Z:\Documents\OpenSource\LottieXamarin\Lottie.Forms\Platforms\Ios\AnimationViewRenderer.cs:117 at Xamarin.Forms.Platform.iOS.VisualElementRenderer1[TElement].SetElement (TElement element) [0x00172] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementRenderer.cs:296 at Xamarin.Forms.Platform.iOS.VisualElementRenderer1[TElement].Xamarin.Forms.Platform.iOS.IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) [0x00000] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementRenderer.cs:158 at Xamarin.Forms.Platform.iOS.Platform.CreateRenderer (Xamarin.Forms.VisualElement element) [0x00032] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Platform.cs:240 at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildAdded (Xamarin.Forms.VisualElement view) [0x0003e] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementPackager.cs:119 at Xamarin.Forms.Platform.iOS.VisualElementPackager.Load () [0x0001e] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementPackager.cs:51 at Xamarin.Forms.Platform.iOS.VisualElementRenderer1[TElement].SetElement (TElement element) [0x0012e] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementRenderer.cs:283 at Xamarin.Forms.Platform.iOS.VisualElementRenderer1[TElement].Xamarin.Forms.Platform.iOS.IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) [0x00000] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementRenderer.cs:158 at Xamarin.Forms.Platform.iOS.Platform.CreateRenderer (Xamarin.Forms.VisualElement element) [0x00032] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Platform.cs:240 at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildAdded (Xamarin.Forms.VisualElement view) [0x0003e] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementPackager.cs:119 at Xamarin.Forms.Platform.iOS.VisualElementPackager.Load () [0x0001e] in D:\a\1\s\Xamarin.Forms.Platform.iOS\VisualElementPackager.cs:51 at Xamarin.Forms.Platform.iOS.PageRenderer.ViewDidLoad () [0x0008f] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\PageRenderer.cs:252 at (wrapper managed-to-native) ObjCRuntime.Messaging.IntPtr_objc_msgSendSuper(intptr,intptr) at UIKit.UIViewController.get_View () [0x0002a] in /Library/Frameworks/Xamarin.iOS.framework/Versions/16.4.0.5/src/Xamarin.iOS/UIKit/UIViewController.g.cs:2938 at Xamarin.Forms.Platform.iOS.PageRenderer.get_NativeView () [0x00000] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\PageRenderer.cs:104 at Xamarin.Forms.Platform.iOS.PageRenderer.SetElement (Xamarin.Forms.VisualElement element) [0x0003d] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\PageRenderer.cs:120 at Xamarin.Forms.Platform.iOS.Platform.CreateRenderer (Xamarin.Forms.VisualElement element) [0x00032] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Platform.cs:240 at Xamarin.Forms.Platform.iOS.NavigationRenderer.CreateViewControllerForPage (Xamarin.Forms.Page page) [0x00008] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\NavigationRenderer.cs:378 at Xamarin.Forms.Platform.iOS.NavigationRenderer.OnPushAsync (Xamarin.Forms.Page page, System.Boolean animated) [0x0001d] in D:\a\1\s\Xamarin.Forms.Platform.iOS\Renderers\NavigationRenderer.cs:353 at Xamarin.Forms.NavigationPage.PushAsyncInner (Xamarin.Forms.Page page, System.Boolean animated) [0x00084] in D:\a\1\s\Xamarin.Forms.Core\NavigationPage.cs:452 at Xamarin.Forms.NavigationPage.PushAsync (Xamarin.Forms.Page page, System.Boolean animated) [0x0014e] in D:\a\1\s\Xamarin.Forms.Core\NavigationPage.cs:265 at infraspadmobile.DisclaimerFull.TapGestureConfirmed_Tapped (System.Object sender, System.EventArgs e) [0x0005e] in C:\src\GIT\a1680-spad\infraspad-mobile\infraspadmobile\DisclaimerFull.xaml.cs:42 at System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.<ThrowAsync>b__7_0 (System.Object state) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/Current/src/Xamarin.iOS/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/AsyncMethodBuilder.cs:1021 at (wrapper delegate-invoke) <Module>.invoke_void_object(object) at Foundation.NSAsyncSynchronizationContextDispatcher.Apply () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/16.4.0.5/src/Xamarin.iOS/Foundation/NSAction.cs:176 --- End of stack trace from previous location where exception was thrown ---

at (wrapper managed-to-native) UIKit.UIApplication.xamarin_UIApplicationMain(int,intptr,intptr,intptr,intptr&) at UIKit.UIApplication.UIApplicationMain (System.Int32 argc, System.String[] argv, System.IntPtr principalClassName, System.IntPtr delegateClassName) [0x00008] in /Library/Frameworks/Xamarin.iOS.framework/Versions/16.4.0.5/src/Xamarin.iOS/UIKit/UIApplication.cs:58 at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x00013] in /Library/Frameworks/Xamarin.iOS.framework/Versions/16.4.0.5/src/Xamarin.iOS/UIKit/UIApplication.cs:84 at infraspadmobile.iOS.Application.Main (System.String[] args) [0x00007] in C:\src\GIT\a1680-spad\infraspad-mobile\infraspadmobile.iOS\Main.cs:21 at (wrapper managed-to-native) System.Reflection.RuntimeMethodInfo.InternalInvoke(System.Reflection.RuntimeMethodInfo,object,object[],System.Exception&) at System.Reflection.RuntimeMethodInfo.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x0006a] in /Library/Frameworks/Xamarin.iOS.framework/Versions/Current/src/Xamarin.iOS/mcs/class/corlib/System.Reflection/RuntimeMethodInfo.cs:395 '

Expected behavior

an animation :)

Reproduction steps

<lottie:AnimationView AnimationSource="EmbeddedResource" Grid.Row="1" IsVisible="false" x:Name="lotLoading" Animation="Lottie.78259-loading.json" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand" RepeatMode="Infinite"/>

The file is in the folder Lottie and it is defined as Embedded Resource

Configuration

Version: 4.1.0

Platform:

• [ ] :iphone: iOS 16 failed
• [ ] :android: Android 13 worked

[nk-alex]

Hard to tell with provided information.

Have you installed Com.Airbnb.iOS.Lottie on your iOS project?

Also, animation file should have "BundleResource" Build Action for iOS.

If nothing works, I suggest you clone samples folder and try running them in your environemnt