System.ObjectDisposedException: Cannot access a disposed object. Object name: 'Android.Graphics.Bitmap'

[jeevan9]

Bug report best practices: https://github.com/xamarin/Xamarin.Forms/wiki/Submitting-Issues

Description

Steps to Reproduce

1. Actually I made a listview and makes a rest call to retrieve data
2. Listview gets populated on scrolling
3. And also i kept a search bar to search the content.

Expected Behavior

Search should happen and make a rest call and listview should be populated without error

Actual Behavior

while searching , sometimes (at irregular intervals of time) i get System.ObjectDisposedException: Cannot access a disposed object. Object name: 'Android.Graphics.Bitmap' this exception and my app gets unfortunately stopped.

Basic Information

I kept a round button in each row of a listview by using ButtonCircle.FormsPlugin.Abstractions plugin and sets background color of the button using random function.

• Version with issue:

• Last known good version:Visual Studio 15.5.6

• IDE: Visual Studio , Xamarin.Forms

• Platform Target Frameworks: Android 4.0.3 to Android 8.0

  • Android: Android 8.0

• Android Support Library Version:

• Nuget Packages: ButtonCircle.FormsPlugin.Abstractions

• Affected Devices:

Screenshots

Reproduction Link

[bentmar]

if your not able to do a reproduction project, please paste the stacktrace. Othwerwise its very hard to se where this bug is happening

[jassmith]

As @bentmar said, without either a reproduction or a stack trace this is going to be a very long time before we get to this.

[jerry2007]

I have same issue...

Stacktrace:
MyIconButtonRenderer.OnElementChanged (Xamarin.Forms.Platform.Android.ElementChangedEventArgs1[TElement] e)
System.ObjectDisposedException: Cannot access a disposed object. Object name: 'Android.Graphics.Bitmap'.
JniPeerMembers.AssertSelf (Java.Interop.IJavaPeerable self)
JniPeerMembers+JniInstanceMethods.InvokeAbstractVoidMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters)
Bitmap.Recycle ()
ButtonDrawable.Reset ()
ButtonRenderer.OnElementChanged (Xamarin.Forms.Platform.Android.ElementChangedEventArgs1[TElement] e) MyIconButtonRenderer.OnElementChanged (Xamarin.Forms.Platform.Android.ElementChangedEventArgs1[TElement] e)
VisualElementRenderer1[TElement].SetElement (TElement element)

[bentmar]

@jerry2007 this crash comes from a custom renderer (not provided by the xamarin team)

[hartez]

@jerry2007 Does your custom renderer override OnElementChanged?

[jeevan9]

 private async Task Get_Projects_Search_List()
        {
            await Get_Projects_Search();           
            foreach (var item in projects_search.Value)
            {
                item.Back_color_str = string.Format("#{0:X6}", new Random().Next(0x1000000));               	
                item.Start_letter = item.ProjectId.Substring(0, 1);
                FilteredList.Add(item);
            }
        }

  private async Task Get_Projects_Search()
        {
            HttpClient client = new HttpClient();          
            string url ="xxx";
            var uri = new Uri(string.Format(url, searchText));
            
            client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
            client.DefaultRequestHeaders.Add("Authorization", MainPage.Token);
            var response = await client.GetAsync(uri);
            if (response.IsSuccessStatusCode)
            {
                var content =await response.Content.ReadAsStringAsync();
                projects_search = JsonConvert.DeserializeObject<RootProject>(content);
            }
        }

This is how i generate a random hexadecimal color using random class.
and i get an error when i make a search using search bar. If the color is not given it works fine.
Below is an attachment displaying my error.So, i request you to resolve my issue.

[PureWeen]

@jeevan9 can you create a repro? Or at the very least post what the code for MyIconButtonRenderer looks like? Though a repro would be more helpful

[samhouts]

@jeevan9 Are you able to attach a small project demonstrating the issue? Thank you

[balaameex]

I am also struck with the same crash, Please let me know if any solution

JniPeerMembers.AssertSelf
android.runtime.JavaProxyThrowable: System.ObjectDisposedException: Cannot access a disposed object.

Xamarin caused by: android.runtime.JavaProxyThrowable: System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'Android.Graphics.Bitmap'.
Java.Interop.JniPeerMembers.AssertSelf(IJavaPeerable self)<7bd6e23e74244e9191c46983d3bb2eeb>:0
Java.Interop.JniPeerMembers.JniInstanceMethods.InvokeAbstractVoidMethod(string encodedMember, IJavaPeerable self, JniArgumentValue* parameters)<7bd6e23e74244e9191c46983d3bb2eeb>:0
Android.Graphics.Bitmap.Recycle()<82958282c7e341b985c12639e88fc1d1>:0
Xamarin.Forms.Platform.Android.ButtonDrawable.Reset()<173f39d71f0d4d928f5bbea42e96ffa8>:0
Xamarin.Forms.Platform.Android.ButtonDrawable.Dispose(bool disposing)<173f39d71f0d4d928f5bbea42e96ffa8>:0
Java.Lang.Object.Dispose()<82958282c7e341b985c12639e88fc1d1>:0
Xamarin.Forms.Platform.Android.ButtonBackgroundTracker.Dispose(bool disposing)<173f39d71f0d4d928f5bbea42e96ffa8>:0
Xamarin.Forms.Platform.Android.ButtonBackgroundTracker.Dispose()<173f39d71f0d4d928f5bbea42e96ffa8>:0
Xamarin.Forms.Platform.Android.ButtonRenderer.Dispose(bool disposing)<173f39d71f0d4d928f5bbea42e96ffa8>:0
Java.Lang.Object.Dispose()<82958282c7e341b985c12639e88fc1d1>:0
Xamarin.Forms.Platform.Android.VisualElementRenderer.Dispose(bool disposing)<173f39d71f0d4d928f5bbea42e96ffa8>:0
Xamarin.Forms.Platform.Android.PageRenderer.Dispose(bool disposing)<173f39d71f0d4d928f5bbea42e96ffa8>:0
Java.Lang.Object.Dispose()<82958282c7e341b985c12639e88fc1d1>:0
Xamarin.Forms.Platform.Android.AppCompat.FragmentContainer.OnDestroyView()<173f39d71f0d4d928f5bbea42e96ffa8>:0
Android.Support.V4.App.Fragment.n_OnDestroyView(IntPtr jnienv, IntPtr native__this)<40bb5a57295c4f648daa62e9e7aa774b>:0
at (wrapper dynamic-method) System.Object.84698d0a-0c20-40fc-87af-f3c645d9eec0(intptr,intptr)
md58432a647068b097f9637064b8985a5e0.FragmentContainer.n_onDestroyView(Native Method)
md58432a647068b097f9637064b8985a5e0.FragmentContainer.onDestroyView()FragmentContainer.java:59
android.support.v4.app.Fragment.performDestroyView()Fragment.java:2590
android.support.v4.app.FragmentManagerImpl.moveToState()FragmentManager.java:1503
android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState()FragmentManager.java:1740
android.support.v4.app.BackStackRecord.executeOps()BackStackRecord.java:794
android.support.v4.app.FragmentManagerImpl.executeOps()FragmentManager.java:2580
android.support.v4.app.FragmentManagerImpl.executeOpsTogether()FragmentManager.java:2367
android.support.v4.app.FragmentManagerImpl.removeRedundantOperationsAndExecute()FragmentManager.java:2322
android.support.v4.app.FragmentManagerImpl.execPendingActions()FragmentManager.java:2229
android.support.v4.app.FragmentManagerImpl$1.run()FragmentManager.java:700
android.os.Handler.handleCallback()Handler.java:739
android.os.Handler.dispatchMessage()Handler.java:95
android.os.Looper.loop()Looper.java:168
android.app.ActivityThread.main()ActivityThread.java:5845
java.lang.reflect.Method.invoke(Native Method)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run()ZygoteInit.java:797
com.android.internal.os.ZygoteInit.main()ZygoteInit.java:687

[balaameex]

The above crash happened randomly, Unfortunately, I can not re produce. But it is happened sporadically, Till not it was happened 11 times(As per hockey app report).

[pauldipietro]

Closing as we've had no reproduction provided to date, with the original report being over two months ago. Please reopen with more information and a reproduction if the issue still occurs on 3.0/3.1-pre.

[dazinator]

I am randomly getting this issue - can't see any custom renderer in the stack trace just platform stuff. Can you consider re-opening this.

Here is the full stack trace:

0xFFFFFFFFFFFFFFFF in System.Diagnostics.Debugger.Mono_UnhandledException_internal C#
0x1 in System.Diagnostics.Debugger.Mono_UnhandledException at /Users/builder/jenkins/workspace/xamarin-android-d15-7/xamarin-android/external/mono/mcs/class/corlib/System.Diagnostics/Debugger.cs:122,4 C#
0x20 in object.51c2ddc7-9a76-4a85-8ca0-23e855bbaca6 C#
0x2E in Java.Interop.JniPeerMembers.AssertSelf C#
0x1 in Java.Interop.JniPeerMembers.JniInstanceMethods.InvokeAbstractVoidMethod C#
0x12 in Android.Graphics.Bitmap.Recycle at /Users/builder/data/lanes/5945/dffc5912/source/monodroid/external/xamarin-android/src/Mono.Android/obj/Release/android-26/mcw/Android.Graphics.Bitmap.cs:1084,5 C#
0xE in Xamarin.Forms.Platform.Android.ButtonDrawable.Reset at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\Renderers\ButtonDrawable.cs:76,5 C#
0x14 in Xamarin.Forms.Platform.Android.ButtonDrawable.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\Renderers\ButtonDrawable.cs:108,5 C#
0x2 in Java.Lang.Object.Dispose at /Users/builder/data/lanes/5945/dffc5912/source/monodroid/external/xamarin-android/src/Mono.Android/Java.Lang/Object.cs:203,4 C#
0x17 in Xamarin.Forms.Platform.Android.ButtonBackgroundTracker.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\ButtonBackgroundTracker.cs:122,6 C#
0x2 in Xamarin.Forms.Platform.Android.ButtonBackgroundTracker.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\ButtonBackgroundTracker.cs:113,4 C#
0x5E in Xamarin.Forms.Platform.Android.AppCompat.ButtonRenderer.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\AppCompat\ButtonRenderer.cs:88,5 C#
0x2 in Java.Lang.Object.Dispose at /Users/builder/data/lanes/5945/dffc5912/source/monodroid/external/xamarin-android/src/Mono.Android/Java.Lang/Object.cs:203,4 C#
0x7B in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.View>.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:234,7 C#
0x2 in Java.Lang.Object.Dispose at /Users/builder/data/lanes/5945/dffc5912/source/monodroid/external/xamarin-android/src/Mono.Android/Java.Lang/Object.cs:203,4 C#
0x7B in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.View>.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:234,7 C#
0x2 in Java.Lang.Object.Dispose at /Users/builder/data/lanes/5945/dffc5912/source/monodroid/external/xamarin-android/src/Mono.Android/Java.Lang/Object.cs:203,4 C#
0x7B in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.View>.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:234,7 C#
0x2 in Java.Lang.Object.Dispose at /Users/builder/data/lanes/5945/dffc5912/source/monodroid/external/xamarin-android/src/Mono.Android/Java.Lang/Object.cs:203,4 C#
0x7B in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.View>.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:234,7 C#
0x2 in Java.Lang.Object.Dispose at /Users/builder/data/lanes/5945/dffc5912/source/monodroid/external/xamarin-android/src/Mono.Android/Java.Lang/Object.cs:203,4 C#
0x7B in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.View>.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:234,7 C#
0x2 in Java.Lang.Object.Dispose at /Users/builder/data/lanes/5945/dffc5912/source/monodroid/external/xamarin-android/src/Mono.Android/Java.Lang/Object.cs:203,4 C#
0x7B in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.View>.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:234,7 C#
0x2 in Java.Lang.Object.Dispose at /Users/builder/data/lanes/5945/dffc5912/source/monodroid/external/xamarin-android/src/Mono.Android/Java.Lang/Object.cs:203,4 C#
0x7B in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.View>.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:234,7 C#
0x2 in Java.Lang.Object.Dispose at /Users/builder/data/lanes/5945/dffc5912/source/monodroid/external/xamarin-android/src/Mono.Android/Java.Lang/Object.cs:203,4 C#
0x7B in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.View>.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:234,7 C#
0x2 in Java.Lang.Object.Dispose at /Users/builder/data/lanes/5945/dffc5912/source/monodroid/external/xamarin-android/src/Mono.Android/Java.Lang/Object.cs:203,4 C#
0x7B in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.Page>.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:234,7 C#
0x13 in Xamarin.Forms.Platform.Android.PageRenderer.Dispose at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\Renderers\PageRenderer.cs:33,4 C#
0x2 in Java.Lang.Object.Dispose at /Users/builder/data/lanes/5945/dffc5912/source/monodroid/external/xamarin-android/src/Mono.Android/Java.Lang/Object.cs:203,4 C#
0x42 in Xamarin.Forms.Platform.Android.AppCompat.FragmentContainer.OnDestroyView at D:\agent_work\1\s\Xamarin.Forms.Platform.Android\AppCompat\FragmentContainer.cs:91,6 C#
0x8 in Android.Support.V4.App.Fragment.n_OnDestroyView C#
0x11 in object.51c2ddc7-9a76-4a85-8ca0-23e855bbaca6 C#

It's not easy to repro on demand without sharing my entire app source code which I can't do here.

[AntRemo]

I too am getting the same error, pretty consistently in my GooglePlay Pre-launch reports. With what I believe is an identical stack trace.

Annoying part is, when I try to reproduce the exact steps, as the test recording video, it does not crash for me :(

Here is a logcat trace.

06-20 09:18:58.228: I/MonoDroid(8313): UNHANDLED EXCEPTION:
06-20 09:18:58.236: I/MonoDroid(8313): System.ObjectDisposedException: Cannot access a disposed object.
06-20 09:18:58.236: I/MonoDroid(8313): Object name: 'Android.Graphics.Bitmap'.
06-20 09:18:58.236: I/MonoDroid(8313): at Java.Interop.JniPeerMembers.AssertSelf (Java.Interop.IJavaPeerable self) <0xd45006c8 + 0x00094> in :0
06-20 09:18:58.236: I/MonoDroid(8313): at Java.Interop.JniPeerMembers+JniInstanceMethods.InvokeAbstractVoidMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters) <0xd45008d0 + 0x0001f> in :0
06-20 09:18:58.236: I/MonoDroid(8313): at Android.Graphics.Bitmap.Recycle () <0xd463765c + 0x00043> in <7222dc8be58347a18dc46a0986ffad8d>:0
06-20 09:18:58.236: I/MonoDroid(8313): at Xamarin.Forms.Platform.Android.ButtonDrawable.Reset () <0xd36a7f10 + 0x0001f> in <6d4ed4125be34de781270a341e979c0d>:0
06-20 09:18:58.236: I/MonoDroid(8313): at Xamarin.Forms.Platform.Android.ButtonDrawable.Dispose (System.Boolean disposing) <0xd36a8188 + 0x0001f> in <6d4ed4125be34de781270a341e979c0d>:0
06-20 09:18:58.236: I/MonoDroid(8313): at Java.Lang.Object.Dispose () <0xd46e68f0 + 0x0001b> in <7222dc8be58347a18dc46a0986ffad8d>:0
06-20 09:18:58.236: I/MonoDroid(8313): at Xamarin.Forms.Platform.Android.ButtonBackgroundTracker.Dispose (System.Boolean disposing) <0xd369b0d8 + 0x0002b> in <6d4ed4125be34de781270a341e979c0d>:0
06-20 09:18:58.236: I/MonoDroid(8313):
at Xamarin.Forms.Platform.Android.AppCompat.ButtonRenderer.Dispose (System.Boolean disposing) <0xd36e0c6c + 0x000a7> in <6d4ed4125be34de781270a341e979c0d>:0
06-20 09:18:58.236: I/MonoDroid(8313): at Java.Lang.Object.Dispose () <0xd46e68f0 + 0x0001b> in <7222dc8be58347a18dc46a0986ffad8d>:0
06-20 09:18:58.236: I/MonoDroid(8313): at Xamarin.Forms.Platform.Android.VisualElementRenderer1[TElement].Dispose (System.Boolean disposing) <0xd36d04a0 + 0x0014b> in <6d4ed4125be34de781270a341e979c0d>:0 06-20 09:18:58.236: I/MonoDroid(8313): at Java.Lang.Object.Dispose () <0xd46e68f0 + 0x0001b> in <7222dc8be58347a18dc46a0986ffad8d>:0 06-20 09:18:58.236: I/MonoDroid(8313): at Xamarin.Forms.Platform.Android.VisualElementRenderer1[TElement].Dispose (System.Boolean disposing) <0xd36d04a0 + 0x0014b> in <6d4ed4125be34de781270a341e979c0d>:0
06-20 09:18:58.236: I/MonoDroid(8313): at Java.Lang.Object.Dispose () <0xd46e68f0 + 0x0001b> in <7222dc8be58347a18dc46a0986ffad8d>:0
06-20 09:18:58.236: I/MonoDroid(8313): at Xamarin.Forms.Platform.Android.VisualElementRenderer1[TElement].Dispose (System.Boolean disposing) <0xd36d04a0 + 0x0014b> in <6d4ed4125be34de781270a341e979c0d>:0 06-20 09:18:58.236: I/MonoDroid(8313): at Xamarin.Forms.Platform.Android.PageRenderer.Dispose (System.Boolean disposing) <0xd36c60a0 + 0x00057> in <6d4ed4125be34de781270a341e979c0d>:0 06-20 09:18:58.236: I/MonoDroid(8313): at Java.Lang.Object.Dispose () <0xd46e68f0 + 0x0001b> in <7222dc8be58347a18dc46a0986ffad8d>:0 06-20 09:18:58.236: I/MonoDroid(8313): at Xamarin.Forms.Platform.Android.AppCompat.FragmentContainer.OnDestroyView () <0xd36de310 + 0x000d7> in <6d4ed4125be34de781270a341e979c0d>:0 06-20 09:18:58.236: I/MonoDroid(8313): at Android.Support.V4.App.Fragment.n_OnDestroyView (System.IntPtr jnienv, System.IntPtr native__this) <0xd35ea240 + 0x0003b> in <9c2ce072107e45b7aa18f455f52752ef>:0 06-20 09:18:58.236: I/MonoDroid(8313): at (wrapper dynamic-method) System.Object.96633450-9b55-41fc-8c86-b460f54a9319(intptr,intptr) 06-20 09:18:58.297: W/art(8313): JNI RegisterNativeMethods: attempt to register 0 native methods for android.runtime.JavaProxyThrowable 06-20 09:18:58.297: W/art(8313): --------- beginning of crash 06-20 09:18:58.304: E/AndroidRuntime(8313): FATAL EXCEPTION: ControllerMessenger 06-20 09:18:58.304: E/AndroidRuntime(8313): Process: com.*redacted app name*, PID: 8313 06-20 09:18:58.304: E/AndroidRuntime(8313): android.runtime.JavaProxyThrowable: System.ObjectDisposedException: Cannot access a disposed object. 06-20 09:18:58.304: E/AndroidRuntime(8313): Object name: 'Android.Graphics.Bitmap'. 06-20 09:18:58.304: E/AndroidRuntime(8313): at Java.Interop.JniPeerMembers.AssertSelf (Java.Interop.IJavaPeerable self) <0xd45006c8 + 0x00094> in <c491698b4f82475fbcdb4a36efdb78e8>:0 06-20 09:18:58.304: E/AndroidRuntime(8313): at Java.Interop.JniPeerMembers+JniInstanceMethods.InvokeAbstractVoidMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters) <0xd45008d0 + 0x0001f> in <c491698b4f82475fbcdb4a36efdb78e8>:0 06-20 09:18:58.304: E/AndroidRuntime(8313): at Android.Graphics.Bitmap.Recycle () <0xd463765c + 0x00043> in <7222dc8be58347a18dc46a0986ffad8d>:0 06-20 09:18:58.304: E/AndroidRuntime(8313): at Xamarin.Forms.Platform.Android.ButtonDrawable.Reset () <0xd36a7f10 + 0x0001f> in <6d4ed4125be34de781270a341e979c0d>:0 06-20 09:18:58.304: E/AndroidRuntime(8313): at Xamarin.Forms.Platform.Android.ButtonDrawable.Dispose (System.Boolean disposing) <0xd36a8188 + 0x0001f> in <6d4ed4125be34de781270a341e979c0d>:0 06-20 09:18:58.304: E/AndroidRuntime(8313): at Java.Lang.Object.Dispose () <0xd46e68f0 + 0x0001b> in <7222dc8be58347a18dc46a0986ffad8d>:0 06-20 09:18:58.304: E/AndroidRuntime(8313): at Xamarin.Forms.Platform.Android.ButtonBackgroundTracker.Dispose (System.Boolean disposing) <0xd369b0d8 + 0x0002b> in <6d4ed4125be34de781270a341e979c0d>:0 06-20 09:18:58.304: E/AndroidRuntime(8313): at Xamarin.Forms.Platform.Android.AppCompat.ButtonRenderer.Dispose (System.Boolean disposing) <0xd36e0c6c + 0x000a7> in <6d4ed4125be34de781270a341e979c0d>:0 06-20 09:18:58.304: E/AndroidRuntime(8313): at Java.Lang.Object.Dispose () <0xd46e68f0 + 0x0001b> in <7222dc8be58347a18dc46a0986ffad8d>:0 06-20 09:18:58.304: E/AndroidRuntime(8313): at Xamarin.Forms.Platform.Android.VisualElementRenderer1[TElement].Dispose (System.Boolean disposing) <0xd36d04a0 + 0x0014b> in <6d4ed4125be34de781270a341e979c0d>:0
06-20 09:18:58.304: E/AndroidRuntime(8313): at Java.Lang.Object.Dispose () <0xd46e68f0 + 0x0001b> in <7222dc8be58347a18dc46a0986ffad8d>:0
06-20 09:18:58.304: E/AndroidRuntime(8313): at Xamarin.Forms.Platform.Android.VisualElementRenderer1[TElement].Dispose (System.Boolean disposing) <0xd36d04a0 + 0x0014b> in <6d4ed4125be34de781270a341e979c0d>:0 06-20 09:18:58.304: E/AndroidRuntime(8313): at Java.Lang.Object.Dispose () <0xd46e68f0 + 0x0001b> in <7222dc8be58347a1 8dc46a0986ffad8d>:0 06-20 09:18:58.304: E/AndroidRuntime(8313): at Xamarin.Forms.Platform.Android.VisualElementRenderer1[TElement].Dispose (System.Boolean disposing) <0xd36d04a0 + 0x0014b> in <6d4ed4125be34de781270a341e979c0d>:0
06-20 09:18:58.304: E/AndroidRuntime(8313): at Xamarin.Forms.Platform.Android.PageRenderer.Dispose (System.Boolean disposing) <0xd36c60a0 + 0x00057> in <6d4ed4125be34de781270a341e979c0d>:0
06-20 09:18:58.304: E/AndroidRuntime(8313): at Java.Lang.Object.Dispose () <0xd46e68f0 + 0x0001b> in <7222dc8be58347a18dc46a0986ffad8d>:0
06-20 09:18:58.304: E/AndroidRuntime(8313): at Xamarin.Forms.Platform.Android.AppCompat.FragmentContainer.OnDestroyView () <0xd36de310 + 0x000d7> in <6d4ed4125be34de781270a341e979c0d>:0
06-20 09:18:58.304: E/AndroidRuntime(8313): at Android.Support.V4.App.Fragment.n_OnDestroyView (System.IntPtr jnienv, System.IntPtr native__this) <0xd35ea240 + 0x0003b> in <9c2ce072107e45b7aa18f455f52752ef>:0
06-20 09:18:58.304: E/AndroidRuntime(8313): at (wrapper dynamic-method) System.Object.96633450-9b55-41fc-8c86-b460f54a9319(intptr,intptr)
06-20 09:18:58.304: E/AndroidRuntime(8313): at md58432a647068b097f9637064b8985a5e0.FragmentContainer.n_onDestroyView(Native Method)
06-20 09:18:58.304: E/AndroidRuntime(8313): at md58432a647068b097f9637064b8985a5e0.FragmentContainer.onDestroyView(FragmentContainer.java:41)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.v4.app.Fragment.performDestroyView(Fragment.java:2497)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1503)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1750)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:792)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2590)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2377)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.v4.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2332)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2239)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:700)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.os.Handler.handleCallback(Handler.java:751)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.os.Handler.dispatchMessage(Handler.java:95)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.base.Interrogator.a(Interrogator.java:19)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.base.UiControllerImpl.a(UiControllerImpl.java:142)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.base.UiControllerImpl.a(UiControllerImpl.java:134)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.base.UiControllerImpl.a(UiControllerImpl.java:34)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.action.MotionEvents.a(MotionEvents.java:74)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.action.MotionEvents.a(MotionEvents.java:52)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.action.Tap.c(Tap.java:9)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.action.Tap.a(Tap.java:19)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.action.Tap$1.b(Tap.java:2)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.action.GeneralClickAction.perform(GeneralClickAction.java:22)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.ViewInteraction$SingleExecutionViewAction.perform(ViewInteraction.java:9)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.ViewInteraction.a(ViewInteraction.java:78)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.ViewInteraction.a(ViewInteraction.java:94)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.support.test.espresso.ViewInteraction$1.call(ViewInteraction.java:3)
06-20 09:18:58.304: E/AndroidRuntime(8313): at java.util.concurrent.FutureTask.run(FutureTask.java:237)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.os.Handler.handleCallback(Handler.java:751)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.os.Handler.dispatchMessage(Handler.java:95)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.os.Looper.loop(Looper.java:154)
06-20 09:18:58.304: E/AndroidRuntime(8313): at android.app.ActivityThread.main(ActivityThread.java:611

06-20 09:18:58.304: E/AndroidRuntime(8313): at java.lang.reflect.Method.invoke(Native Method)
06-20 09:18:58.304: E/AndroidRuntime(8313): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
06-20 09:18:58.304: E/AndroidRuntime(8313): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
06-20 09:18:58.308: I/Process(8313): Sending signal. PID: 8313 SIG: 9
06-20 09:18:58.321: I/ActivityManager(1065): Killing 7301:com.google.android.gms.unstable/u0a18 (adj 906): empty #17
06-20 09:18:58.361: I/WindowManager(1065): WIN DEATH: Window{74cacf3 u0 com.redacted app name/md53351f89f55b5e184b441dc4be31ab70a.MainActivity}
06-20 09:18:58.361: D/GraphicsStats(1065): Buffer count: 4
06-20 09:18:58.361: D/ConnectivityService(1065): ConnectivityService NetworkRequestInfo binderDied(NetworkRequest [ LISTEN id=15, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN&VALIDATED&FOREGROUND] ], android.os.BinderProxy@44de9e5)
06-20 09:18:58.363: I/ActivityManager(1065): Process com.redacted app name (pid 8313) has died

[danilkurkin1]

Started to receive this issue with latest update of Xamarin Forms 3.1.0.583944

Fatal Exception: java.lang.Throwable: Cannot access a disposed object.
Object name: 'Android.Graphics.Bitmap'.
at Java.Interop.JniPeerMembers.AssertSelf (Java.Interop.IJavaPeerable self)(filename unknown)
at Java.Interop.JniPeerMembers+JniInstanceMethods.InvokeAbstractVoidMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters)(filename unknown)
at Android.Graphics.Bitmap.Recycle ()(filename unknown)
at Xamarin.Forms.Platform.Android.ButtonDrawable.Reset ()(filename unknown)
at Xamarin.Forms.Platform.Android.ButtonDrawable.Dispose (System.Boolean disposing)(filename unknown)
at Java.Lang.Object.Dispose ()(filename unknown)
at Xamarin.Forms.Platform.Android.ButtonBackgroundTracker.Dispose (System.Boolean disposing)(filename unknown)
at Xamarin.Forms.Platform.Android.ButtonBackgroundTracker.Dispose ()(filename unknown)
at Xamarin.Forms.Platform.Android.ButtonRenderer.Dispose (System.Boolean disposing)(filename unknown)
at Java.Lang.Object.Dispose ()(filename unknown)
at Xamarin.Forms.Platform.Android.VisualElementRenderer1[TElement].Dispose (System.Boolean disposing)(filename unknown) at Java.Lang.Object.Dispose ()(filename unknown) at Xamarin.Forms.Platform.Android.VisualElementRenderer1[TElement].Dispose (System.Boolean disposing)(filename unknown)
at Java.Lang.Object.Dispose ()(filename unknown)
at Xamarin.Forms.Platform.Android.VisualElementRenderer1[TElement].Dispose (System.Boolean disposing)(filename unknown) at Java.Lang.Object.Dispose ()(filename unknown) at Xamarin.Forms.Platform.Android.VisualElementRenderer1[TElement].Dispose (System.Boolean disposing)(filename unknown)
at Java.Lang.Object.Dispose ()(filename unknown)
at Xamarin.Forms.Platform.Android.VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing)(filename unknown)
at Xamarin.Forms.Platform.Android.PageRenderer.Dispose (System.Boolean disposing)(filename unknown)
at JobseekerApp.Droid.Renderers.ReedContentPageRenderer.Dispose (System.Boolean disposing)(filename unknown)
at Java.Lang.Object.Dispose ()(filename unknown)
at Xamarin.Forms.Platform.Android.AppCompat.FragmentContainer.OnDestroyView ()(filename unknown)
at Android.Support.V4.App.Fragment.n_OnDestroyView (System.IntPtr jnienv, System.IntPtr native__this)(filename unknown)

[pluggy]

I also started getting this bug after updating to XF 3.1.0.697729. I can't post my project for reproduction since it's a closed source, but here's at least a call stack:

System.ObjectDisposedException: Cannot access a disposed object. Object name: 'Android.Graphics.Bitmap'.
JniPeerMembers.AssertSelf (Java.Interop.IJavaPeerable self)
JniPeerMembers+JniInstanceMethods.InvokeAbstractVoidMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters)
Bitmap.Recycle ()
ButtonDrawable.Reset () D:\a\1\s\Xamarin.Forms.Platform.Android\Renderers\ButtonDrawable.cs:98
ButtonDrawable.Dispose (System.Boolean disposing) D:\a\1\s\Xamarin.Forms.Platform.Android\Renderers\ButtonDrawable.cs:130
Object.Dispose ()
ButtonBackgroundTracker.Dispose (System.Boolean disposing) D:\a\1\s\Xamarin.Forms.Platform.Android\ButtonBackgroundTracker.cs:139
ButtonBackgroundTracker.Dispose () D:\a\1\s\Xamarin.Forms.Platform.Android\ButtonBackgroundTracker.cs:130
ButtonRenderer.Dispose (System.Boolean disposing) D:\a\1\s\Xamarin.Forms.Platform.Android\AppCompat\ButtonRenderer.cs:91
Object.Dispose ()
VisualElementRenderer1[TElement].Dispose (System.Boolean disposing) D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:237 Object.Dispose () VisualElementRenderer1[TElement].Dispose (System.Boolean disposing) D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:237
PageRenderer.Dispose (System.Boolean disposing) D:\a\1\s\Xamarin.Forms.Platform.Android\Renderers\PageRenderer.cs:33
Object.Dispose ()
FragmentContainer.OnDestroyView () D:\a\1\s\Xamarin.Forms.Platform.Android\AppCompat\FragmentContainer.cs:74
Fragment.n_OnDestroyView (System.IntPtr jnienv, System.IntPtr native__this)
(wrapper dynamic-method) System.Object.46(intptr,intptr)

[PureWeen]

@pluggy this should be resolved in the latest 3.2 release

[MauriRosso]

Add in list view this parameter:
<ListView CachingStrategy="RecycleElement">

Good luck!