ListViewRenderer.onDetachedFromWindow: Java.IO.JavaLocationException

Question

One of our testers reported a bug where our app crashed if an SfPopupView that contained a SfListView was open when navigating away from a page using the NavigationPage soft back button on Android:

Stack traces

Java.Lang.Error: Exception of type 'Java.Lang.Error' was thrown.
java.lang.Error: Java callstack:
crc643f46942d9dd1fff9.ListViewRenderer.n_onDetachedFromWindow(Native Method)
crc643f46942d9dd1fff9.ListViewRenderer.onDetachedFromWindow ListViewRenderer.java:57
android.view.View.dispatchDetachedFromWindow View.java:17498
android.view.ViewGroup.dispatchDetachedFromWindow ViewGroup.java:3701
android.view.ViewGroup.removeViewInternal ViewGroup.java:5245
android.view.ViewGroup.removeViewAt ViewGroup.java:5192
crc64720bb2db43a66fe9.FragmentContainer.n_onDestroyView(Native Method)
crc64720bb2db43a66fe9.FragmentContainer.onDestroyView FragmentContainer.java:49
androidx.fragment.app.Fragment.performDestroyView Fragment.java:3200
androidx.fragment.app.FragmentStateManager.destroyFragmentView FragmentStateManager.java:742
androidx.fragment.app.FragmentStateManager.moveToExpectedState FragmentStateManager.java:346
androidx.fragment.app.SpecialEffectsController$FragmentStateManagerOperation.complete SpecialEffectsController.java:745
androidx.fragment.app.SpecialEffectsController$Operation.completeSpecialEffect SpecialEffectsController.java:672
androidx.fragment.app.DefaultSpecialEffectsController$SpecialEffectsInfo.completeSpecialEffect DefaultSpecialEffectsController.java:776
androidx.fragment.app.DefaultSpecialEffectsController.startAnimations DefaultSpecialEffectsController.java:141
androidx.fragment.app.DefaultSpecialEffectsController.executeOperations DefaultSpecialEffectsController.java:120
androidx.fragment.app.SpecialEffectsController.executePendingOperations SpecialEffectsController.java:297
androidx.fragment.app.FragmentManager.executeOpsTogether FragmentManager.java:2202
androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute FragmentManager.java:2100
androidx.fragment.app.FragmentManager.execPendingActions FragmentManager.java:2002
androidx.fragment.app.FragmentManager$5.run FragmentManager.java:524
android.os.Handler.handleCallback Handler.java:790
android.os.Handler.dispatchMessage Handler.java:99
android.os.Looper.loop Looper.java:164
android.app.ActivityThread.main ActivityThread.java:6494
java.lang.reflect.Method.invoke(Native Method)
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run RuntimeInit.java:440
com.android.internal.os.ZygoteInit.main ZygoteInit.java:807

TypeManager.CreateProxy (System.Type type, System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer)
TypeManager.CreateInstance (System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer, System.Type targetType)

TypeManager.CreateInstance (System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer, System.Type targetType)
Object.GetObject (System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer, System.Type type)
Object._GetObject[T] (System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer)
Object.GetObject[T] (System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer)
Object.GetObject[T] (System.IntPtr jnienv, System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer)
View.n_OnDetachedFromWindow (System.IntPtr jnienv, System.IntPtr native__this)
JNINativeWrapper.Wrap_JniMarshal_PP_V (_JniMarshal_PP_V callback, System.IntPtr jnienv, System.IntPtr klazz)

Lakshmi Natarajan · Answer

Hi
Andrew,We
have tested our sample based on the details given. Unfortunately, we are unable
to replicate the reported scenario on our end.Could
you please share the following details which will be helpful for us to check on
it and provide you with the best possible solution at the earliest?
 ListView and navigation related
     code snippets
 Issue replication video
 Tested device details
 Syncfusion and Xamarin.Forms
     versions
Also,
we have attached our tested sample in this update. Please check our sample and
let us know if you are still facing the same issue. If not, please modify our
sample based on your scenario and revert us with the replication sample.Regards,Lakshmi
NatarajanAttachment: ListViewXamarin_778547ff.zip

Andrew Hoke · Answer

Hi Lakshmi, here are some more details:Syncfusion NuGet: 19.3.0.46Xamarin.Forms: 5.0.0.2337Device: LG V20OS: Android Oreo 8.1.0Navigation is performed by Xamarin upon press of the soft back button in the navigation bar in the app.ListView code snippet (contained in AbsoluteLayout): I will be doing a round of NuGet package updating and will report back if updating packages fixes the issue.

Suja Venkatesan · Answer

Hi Andrew,We regret let you know that we are unable to replicate the
reported scenario on our end. We have prepared a simple sample with provided
code snippets and version details, attached here for your reference. We have
checked the provided exception stacktrace, we didn’t found exception from
syncfusion controls, its related to Xamarin.Forms ListView. Could please
confirm further you are facing issue while loading Xamarin.Forms.ListView or
SfListview as content of SfPopupLayout ? Please revert to us with modified
sample to replicate the reported issue on our end. It will be more helpful for
us to provide the timely solutions. We will wait to hear from you about whether
updating nuget packages resolves the issue.Regards,SujaAttachment: ListViewXamarin_77eae064.zip

Andrew Hoke · Answer

Hi Suja,I was also unable to reproduce the issue. I will follow up with the tester who reported the issue and ask them to verify if the exception can still be reproduced.

Lakshmi Natarajan · Answer

Hi
Andrew,Thank
you for the update.Please check the reported scenario on your end and
get back to us if you need further assistance. We will be happy to assist you.Regards,Lakshmi
Natarajan