I'm developing an app to handle an inventory for Android, when it run on the device itself crash (I'm using a Samsung S 20+ and A 21S, but if it is connected to the visual studio on debug mode it works fine, the form it is a collectionview tie to an observable collection, the view model has 2 set of variables on which contain all records and the other handle the filters, on the initial both has the same sub set of data (No filter apply), but when i set the value of the second (which is the one used on the CollectionView) the app crash.
Using .NET Maui 8.0.60 and the target it is 14v min Version 10
public InventoryViewModel()
{
if (string.IsNullOrEmpty(Title))
Title = "Inventario";
SelectionMode = SelectionMode.Multiple;
LoadInventory();
}
public void LoadInventory()
{
try
{
Inventory = new ObservableCollection<ProductsModel>();
Inventory.Add(new ProductsModel { ProductId = 1, ProductName = "Perfume 1", ProductCategory = "P", Quantity = 1, UnitPrice = 3.53M, BarCode = "1234", IsImageOnServer = false });
Inventory.Add(new ProductsModel { ProductId = 2, ProductName = "Perfume 2", ProductCategory = "P", Quantity = 2, UnitPrice = 4.63M, BarCode = "5697", IsImageOnServer = false });
Inventory.Add(new ProductsModel { ProductId = 3, ProductName = "Perfume 3", ProductCategory = "P", Quantity = 3, UnitPrice = 5.73M, BarCode = "8741", IsImageOnServer = false });
Inventory.Add(new ProductsModel { ProductId = 4, ProductName = "Perfume 4", ProductCategory = "P", Quantity = 2, UnitPrice = 6.83M, BarCode = "9965", IsImageOnServer = false });
SearchResults = Inventory; // Here is where the app crashes
}
catch (Exception)
{
throw;
}
}
I have been trying:
List<ProductusModel> then convert to observable.Adding some delay when declare and then adding the data, thinking it was a time issue, but not luck.
Here is the stack code:
Time Device Name Type PID Tag Message
06-27 23:16:36.573 Samsung SM-A217M Error 11830 AndroidRuntime Process: com.gperfumes.crm, PID: 11830
06-27 23:16:36.607 Samsung SM-A217M Warning 5368 WindowManager Prepare app transition: mNextAppTransitionRequests=[TRANSIT_CLOSE, TRANSIT_CLOSE, TRANSIT_CLOSE], mNextAppTransitionFlags=TRANSIT_FLAG_APP_CRASHED, displayId: 0 Callers=com.android.server.wm.DisplayContent.prepareAppTransition:6369 com.android.server.wm.DisplayContent.prepareAppTransition:6364 com.android.server.wm.ActivityRecord.finishIfPossible:3650 com.android.server.wm.ActivityRecord.finishIfPossible:3456 com.android.server.wm.Task.finishTopCrashedActivityLocked:8918
06-27 23:16:36.606 Samsung SM-A217M Debug 5368 SGM:GameManager sendFocusOutConditionally() - mPrevNotiPkg: (unknown), userId: 0
handleTaskFocused(), pkgName: com.sec.android.app.launcher, userID:0 mResumedPkgMap does not containsKey.
06-27 23:16:36.606 Samsung SM-A217M Debug 5368 SGM:GameManager handleTaskFocused().
06-27 23:16:36.606 Samsung SM-A217M Debug 5368 SGM:GameManager onLooperPrepared(), msg: MSG_TASK_FOCUSED, pkgName: com.sec.android.app.launcher, userId: 0
06-27 23:16:36.605 Samsung SM-A217M Debug 5368 SGM:GameManager TaskStackListener.onTaskFocusChanged(), taskId=23936, focused=true
sendRunningComponentFocus(), pkgName: com.sec.android.app.launcher, userId: 0
06-27 23:16:36.605 Samsung SM-A217M Debug 5368 SGM:GameManager TaskStackListener.onTaskFocusChanged(), taskId=23965, focused=false
06-27 23:16:36.605 Samsung SM-A217M Debug 5368 StatusBarManagerService notifyRequestedSystemKey recent=false home=false
06-27 23:16:36.605 Samsung SM-A217M Debug 5368 MARsPolicyManager onPackageResumedFG pkgName = com.gperfumes.crm, userId = 0
06-27 23:16:36.605 Samsung SM-A217M Verbose 5368 WindowManager Changing focus from Window{dd96dcb u0 com.gperfumes.crm/crc646584e998dbc9d4ac.MainActivity} to null displayId=0 Callers=com.android.server.wm.RootWindowContainer.updateFocusedWindowLocked:583 com.android.server.wm.WindowManagerService.updateFocusedWindowLocked:6497 com.android.server.wm.ActivityTaskManagerService.setResumedActivityUncheckLocked:5498 com.android.server.wm.ActivityRecord.moveFocusableActivityToTop:3364
06-27 23:16:36.603 Samsung SM-A217M Debug 5368 InputDispatcher Focused application set to (0): 99e7e90
06-27 23:16:36.602 Samsung SM-A217M Warning 5368 WindowManager Prepare app transition: mNextAppTransitionRequests=[TRANSIT_CLOSE, TRANSIT_CLOSE], mNextAppTransitionFlags=TRANSIT_FLAG_APP_CRASHED, displayId: 0 Callers=com.android.server.wm.DisplayContent.prepareAppTransition:6369 com.android.server.wm.DisplayContent.requestTransitionAndLegacyPrepare:6384 com.android.server.wm.Task.finishTopCrashedActivityLocked:8917 com.android.server.wm.RootWindowContainer.lambda$finishTopCrashedActivities$20:2781 com.android.server.wm.RootWindowContainer$$ExternalSyntheticLambda30.accept:10
06-27 23:16:36.601 Samsung SM-A217M Warning 5368 WindowManager Prepare app transition: mNextAppTransitionRequests=[TRANSIT_CLOSE], mNextAppTransitionFlags=TRANSIT_FLAG_APP_CRASHED, displayId: 0 Callers=com.android.server.wm.DisplayContent.prepareAppTransition:6369 com.android.server.wm.Task.finishTopCrashedActivityLocked:8916 com.android.server.wm.RootWindowContainer.lambda$finishTopCrashedActivities$20:2781 com.android.server.wm.RootWindowContainer$$ExternalSyntheticLambda30.accept:10 com.android.server.wm.Task.forAllTasks:5181
06-27 23:16:36.599 Samsung SM-A217M Warning 5368 ContextImpl Calling a method in the system process without a qualified user: android.app.ContextImpl.sendBroadcast:1242 com.android.server.am.AppErrors.crashApplicationInner:724 com.android.server.am.AppErrors.crashApplication:584 com.android.server.am.ActivityManagerService.handleApplicationCrashInner:9793 com.android.server.am.ActivityManagerService.handleApplicationCrash:9672
Force finishing activity com.gperfumes.crm/crc646584e998dbc9d4ac.MainActivity
06-27 23:16:36.599 Samsung SM-A217M Warning 5368 ActivityManager crash : com.gperfumes.crm,10338
06-27 23:16:36.598 Samsung SM-A217M Debug 5368 Debug low && ship && 3rdparty app crash, do not dump
06-27 23:16:36.598 Samsung SM-A217M Info 5368 DropBoxManagerService add tag=data_app_crash isTagEnabled=true flags=0x2
06-27 23:16:36.593 Samsung SM-A217M Info 11830 MonoDroid
06-27 23:16:36.593 Samsung SM-A217M Info 11830 MonoDroid android.runtime.JavaProxyThrowable: [System.Reflection.TargetInvocationException]: Arg_TargetInvocationException
at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Unknown Source:0)
at System.RuntimeType.CreateInstanceMono(Unknown Source:0)
at System.RuntimeType.CreateInstanceDefaultCtor(Unknown Source:0)
at System.Activator.CreateInstance(Unknown Source:0)
at System.Activator.CreateInstance(Unknown Source:0)
at System.Activator.CreateInstance(Unknown Source:0)
at Microsoft.Maui.Controls.Routing+TypeRouteFactory.GetOrCreate(Unknown Source:0)
at Microsoft.Maui.Controls.Routing.GetOrCreateContent(Unknown Source:0)
at Microsoft.Maui.Controls.ShellSection.GetOrCreateFromRoute(Unknown Source:0)
at Microsoft.Maui.Controls.ShellSection+<GoToAsync>d__65.MoveNext(Unknown Source:0)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw(Unknown Source:0)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Unknown Source:0)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Unknown Source:0)
at Microsoft.Maui.Controls.ShellNavigationManager+<GoToAsync>d__14.MoveNext(Unknown Source:0)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw(Unknown Source:0)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Unknown Source:0)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Unknown Source:0)
at CRM.ViewModels.InventoryViewModel+<>c+<<get_EditProductCommand>b__41_0>d.MoveNext(Unknown Source:0)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw(Unknown Source:0)
at System.Threading.Tasks.Task+<>c.<ThrowAsync>b__128_0(Unknown Source:0)
at Android.App.SyncContext+<>c__DisplayClass2_0.<Post>b__0(Unknown Source:0)
at Java.Lang.Thread+RunnableImplementor.Run(Unknown Source:0)
at Java.Lang.IRunnableInvoker.n_Run(Unknown Source:0)
at Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PP_V(Unknown Source:0)
at mono.java.lang.RunnableImplementor.n_run(Native Method)
at mono.java.lang.RunnableImplementor.run(RunnableImplementor.java:31)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:226)
at android.os.Looper.loop(Looper.java:313)
at android.app.ActivityThread.main(ActivityThread.java:8669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1135)
06-27 23:16:36.593 Samsung SM-A217M Info 11830 MonoDroid
--- End of managed Android.Runtime.JavaProxyThrowable stack trace ---
06-27 23:16:36.592 Samsung SM-A217M Info 11830 MonoDroid android.runtime.JavaProxyThrowable: [System.Reflection.TargetInvocationException]: Arg_TargetInvocationException
at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Unknown Source:0)
at System.RuntimeType.CreateInstanceMono(Unknown Source:0)
at System.RuntimeType.CreateInstanceDefaultCtor(Unknown Source:0)
at System.Activator.CreateInstance(Unknown Source:0)
at System.Activator.CreateInstance(Unknown Source:0)
at System.Activator.CreateInstance(Unknown Source:0)
at Microsoft.Maui.Controls.Routing+TypeRouteFactory.GetOrCreate(Unknown Source:0)
at Microsoft.Maui.Controls.Routing.GetOrCreateContent(Unknown Source:0)
at Microsoft.Maui.Controls.ShellSection.GetOrCreateFromRoute(Unknown Source:0)
at Microsoft.Maui.Controls.ShellSection+<GoToAsync>d__65.MoveNext(Unknown Source:0)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw(Unknown Source:0)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Unknown Source:0)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Unknown Source:0)
at Microsoft.Maui.Controls.ShellNavigationManager+<GoToAsync>d__14.MoveNext(Unknown Source:0)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw(Unknown Source:0)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Unknown Source:0)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Unknown Source:0)
at CRM.ViewModels.InventoryViewModel+<>c+<<get_EditProductCommand>b__41_0>d.MoveNext(Unknown Source:0)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw(Unknown Source:0)
at System.Threading.Tasks.Task+<>c.<ThrowAsync>b__128_0(Unknown Source:0)
at Android.App.SyncContext+<>c__DisplayClass2_0.<Post>b__0(Unknown Source:0)
at Java.Lang.Thread+RunnableImplementor.Run(Unknown Source:0)
at Java.Lang.IRunnableInvoker.n_Run(Unknown Source:0)
at Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PP_V(Unknown Source:0)
at mono.java.lang.RunnableImplementor.n_run(Native Method)
at mono.java.lang.RunnableImplementor.run(RunnableImplementor.java:31)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:226)
at android.os.Looper.loop(Looper.java:313)
at android.app.ActivityThread.main(ActivityThread.java:8669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1135)
06-27 23:16:36.592 Samsung SM-A217M Info 11830 MonoDroid
--- End of managed Android.Runtime.JavaProxyThrowable stack trace ---
06-27 23:16:36.592 Samsung SM-A217M Info 11830 MonoDroid Android.Runtime.JavaProxyThrowable: Exception_WasThrown, Android.Runtime.JavaProxyThrowable
06-27 23:16:36.584 Samsung SM-A217M Info 11830 MonoDroid UNHANDLED EXCEPTION:
06-27 23:16:36.582 Samsung SM-A217M Warning 11830 monodroid-assembly Shared library 'liblog' not loaded, p/invoke '__android_log_print' may fail
06-27 23:16:36.573 Samsung SM-A217M Error 11830 AndroidRuntime android.runtime.JavaProxyThrowable: [System.Reflection.TargetInvocationException]: Arg_TargetInvocationException
at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Unknown Source:0)
at System.RuntimeType.CreateInstanceMono(Unknown Source:0)
at System.RuntimeType.CreateInstanceDefaultCtor(Unknown Source:0)
at System.Activator.CreateInstance(Unknown Source:0)
at System.Activator.CreateInstance(Unknown Source:0)
at System.Activator.CreateInstance(Unknown Source:0)
at Microsoft.Maui.Controls.Routing+TypeRouteFactory.GetOrCreate(Unknown Source:0)
at Microsoft.Maui.Controls.Routing.GetOrCreateContent(Unknown Source:0)
at Microsoft.Maui.Controls.ShellSection.GetOrCreateFromRoute(Unknown Source:0)
at Microsoft.Maui.Controls.ShellSection+<GoToAsync>d__65.MoveNext(Unknown Source:0)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw(Unknown Source:0)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Unknown Source:0)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Unknown Source:0)
at Microsoft.Maui.Controls.ShellNavigationManager+<GoToAsync>d__14.MoveNext(Unknown Source:0)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw(Unknown Source:0)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Unknown Source:0)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Unknown Source:0)
at CRM.ViewModels.InventoryViewModel+<>c+<<get_EditProductCommand>b__41_0>d.MoveNext(Unknown Source:0)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw(Unknown Source:0)
at System.Threading.Tasks.Task+<>c.<ThrowAsync>b__128_0(Unknown Source:0)
at Android.App.SyncContext+<>c__DisplayClass2_0.<Post>b__0(Unknown Source:0)
at Java.Lang.Thread+RunnableImplementor.Run(Unknown Source:0)
at Java.Lang.IRunnableInvoker.n_Run(Unknown Source:0)
at Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PP_V(Unknown Source:0)
at mono.java.lang.RunnableImplementor.n_run(Native Method)
at mono.java.lang.RunnableImplementor.run(RunnableImplementor.java:31)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:226)
at android.os.Looper.loop(Looper.java:313)
at android.app.ActivityThread.main(ActivityThread.java:8669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1135)
and thank you to everyone for their comments, with them, I was able to find the solution to my problem.
The problem was in the XAML Code not in the C#, there was a wrong reference on the collectionview, I pointed to a reference to a nonexistent name.
I read all this post, and on it someone refer to a non-existing Color name, I start comment out all the controls and then enable one by one (on the XAML) until I find out the root cause (I did not play with this because I thought the problem resided on the C# code instead of the XAML)
<SwipeView.RightItems>
<SwipeItems Mode="Reveal">
<SwipeItem Text="Editar"
BackgroundColor="#4CAF50"
IconImageSource="{FontImage FontFamily='AwesomeIcons', Glyph={x:Static FontHelpers:FontHelperAwesome.Pencil}, Size=30, Color=LightGreen}"
Command="{Binding BindingContext.EditTransactionCommand, **Source={x:Reference TransactionStatementCollectionView}}"** //This reference was pointing to the wrong name
CommandParameter="{Binding .}" />
</SwipeItems>
</SwipeView.RightItems>