[Compose Navigation] File Deeplink without Args crashes App on navigateUp [243183636]

Fixed

Bug

Status Update

No update yet.

Description

to...@gmail.com

created issue #1

Aug 20, 2022 04:54PM

Component used: Compose Navigation Version used: 2.5.1 Devices/Android versions reproduced on:

Issue Description

I added Deeplink support for json files to one of my Compose Screens like this

                composable(
                    route = Screens.screenB,
                    deepLinks = listOf(
                        navDeepLink {
                            uriPattern = "content://"
                            mimeType = "application/json"
                            action = Intent.ACTION_VIEW
                        }
                    ),
                    // with this not commented out, the app doesn't crash
//                    arguments = listOf(
//                        navArgument(name = "bla") {
//                            type = NavType.StringType
//                            nullable = true
//                            defaultValue = null
//                        }
//                    )
                ) {
                    val viewModel = hiltViewModel<ScreenBViewModel>()
                    ScreenB(
                        viewModel = viewModel,
                        onBack = navController::navigateUp,
                    )
                }

After opening a json file the app navigates to the correct screen, but when the user clicks on the toolbar back button and navigateUp is triggered the app crashes instantly with following stacktrace:

java.lang.NullPointerException: Attempt to invoke virtual method 'void android.os.Bundle.unparcel()' on a null object reference
        at android.os.Bundle.putAll(Bundle.java:303)
        at androidx.navigation.NavController.tryRelaunchUpToGeneratedStack(NavController.kt:843)
        at androidx.navigation.NavController.navigateUp(NavController.kt:752)
        at com.tostert.navigationfiledeeplink.ComposableSingletons$MainActivityKt$lambda-1$1$1$3$1.invoke(MainActivity.kt:50)
        at com.tostert.navigationfiledeeplink.ComposableSingletons$MainActivityKt$lambda-1$1$1$3$1.invoke(MainActivity.kt:50)
        at androidx.compose.foundation.ClickableKt$clickable$4$gesture$1$2.invoke-k-4lQ0M(Clickable.kt:153)
        at androidx.compose.foundation.ClickableKt$clickable$4$gesture$1$2.invoke(Clickable.kt:142)
        at androidx.compose.foundation.gestures.TapGestureDetectorKt$detectTapAndPress$2$1$1.invokeSuspend(TapGestureDetector.kt:222)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
        at kotlinx.coroutines.DispatchedTaskKt.resume(DispatchedTask.kt:178)
        at kotlinx.coroutines.DispatchedTaskKt.dispatch(DispatchedTask.kt:166)
        at kotlinx.coroutines.CancellableContinuationImpl.dispatchResume(CancellableContinuationImpl.kt:397)
        at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl(CancellableContinuationImpl.kt:431)
        at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl$default(CancellableContinuationImpl.kt:420)
        at kotlinx.coroutines.CancellableContinuationImpl.resumeWith(CancellableContinuationImpl.kt:328)
        at androidx.compose.ui.input.pointer.SuspendingPointerInputFilter$PointerEventHandlerCoroutine.offerPointerEvent(SuspendingPointerInputFilter.kt:563)
        at androidx.compose.ui.input.pointer.SuspendingPointerInputFilter.dispatchPointerEvent(SuspendingPointerInputFilter.kt:455)
        at androidx.compose.ui.input.pointer.SuspendingPointerInputFilter.onPointerEvent-H0pRuoY(SuspendingPointerInputFilter.kt:468)
        at androidx.compose.ui.input.pointer.Node.dispatchMainEventPass(HitPathTracker.kt:310)
        at androidx.compose.ui.input.pointer.Node.dispatchMainEventPass(HitPathTracker.kt:297)
        at androidx.compose.ui.input.pointer.Node.dispatchMainEventPass(HitPathTracker.kt:297)
        at androidx.compose.ui.input.pointer.Node.dispatchMainEventPass(HitPathTracker.kt:297)
        at androidx.compose.ui.input.pointer.NodeParent.dispatchMainEventPass(HitPathTracker.kt:179)
        at androidx.compose.ui.input.pointer.HitPathTracker.dispatchChanges(HitPathTracker.kt:98)
        at androidx.compose.ui.input.pointer.PointerInputEventProcessor.process-BIzXfog(PointerInputEventProcessor.kt:97)
        at androidx.compose.ui.platform.AndroidComposeView.sendMotionEvent-8iAsVTc(AndroidComposeView.android.kt:1280)
        at androidx.compose.ui.platform.AndroidComposeView.handleMotionEvent-8iAsVTc(AndroidComposeView.android.kt:1230)
        at androidx.compose.ui.platform.AndroidComposeView.dispatchTouchEvent(AndroidComposeView.android.kt:1169)
        at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3121)
        at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2802)
        at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3121)
        at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2802)
        at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3121)
        at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2802)
2022-08-20 18:31:15.673 21442-21442/com.tostert.navigationfiledeeplink E/AndroidRuntime:     at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1899)
        at android.app.Activity.dispatchTouchEvent(Activity.java:4262)
        at androidx.appcompat.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:70)
        at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:456)
        at android.view.View.dispatchPointerEvent(View.java:15263)
        at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:6548)
        at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:6348)
        at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:5804)
        at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:5861)
        at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:5827)
        at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:5992)
        at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:5835)
        at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:6049)
        at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:5808)
        at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:5861)
        at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:5827)
        at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:5835)
        at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:5808)
        at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:8857)
        at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:8808)
        at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:8777)
        at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:8980)
        at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:267)
        at android.os.MessageQueue.nativePollOnce(Native Method)
        at android.os.MessageQueue.next(MessageQueue.java:335)
        at android.os.Looper.loopOnce(Looper.java:161)
        at android.os.Looper.loop(Looper.java:288)
        at android.app.ActivityThread.main(ActivityThread.java:7898)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)
    	Suppressed: kotlinx.coroutines.DiagnosticCoroutineContextException: [androidx.compose.ui.platform.MotionDurationScaleImpl@5816ebb, androidx.compose.runtime.BroadcastFrameClock@77b4fd8, StandaloneCoroutine{Cancelling}@ae4ff31, AndroidUiDispatcher@a27c616]

After adding a default argument to the nav composable the app doesn't crash, but it feels like a dirty workaround because the argument is never actively used.

Is it possible to read the file uri from an argument? if yes, how does the deeplink and the argument need to be declared?

Sample Project: https://github.com/TobyEb/NavigationFileDeeplink

Comments

il...@google.com <il...@google.com> Oct 5, 2022 08:43PM

Assigned to fo...@google.com.

fo...@google.com <fo...@google.com> #2Oct 6, 2022 09:08PM

Reassigned to il...@google.com.

Nested scrolling works partially (as per

http://b/122818889). Let's discuss if we need full support and if so make sure it works.

il...@google.com <il...@google.com> #3Oct 10, 2022 11:44PM

Reassigned to fo...@google.com.

Hi!

What is 'partially' exactly?
How do I see it?
Thanks!

fo...@google.com <fo...@google.com> Oct 13, 2022 12:28AM

Reassigned to il...@google.com.

il...@google.com <il...@google.com> Oct 13, 2022 06:03PM

Reassigned to cl...@google.com.

ap...@google.com <ap...@google.com> #4Oct 14, 2022 08:18PM

As of now:
- Nesting scroll views with a scroll direction perpendicular to the ViewPager2's orientation inside ViewPager2 works
- Nesting scroll views with a scroll direction parallel to the ViewPager2's orientation inside ViewPager2 does not work

cl...@google.com <cl...@google.com> #5Oct 14, 2022 08:20PM

Marked as fixed.

Horizontal ViewPager2 not correctly working into a vertical RecyclerView
Set a setNestedScrollingEnabled to the RecyclerView into the ViewPager2 (across reflection) resolves the problem

na...@google.com <na...@google.com> #6Nov 9, 2022 06:27PM

ageevvalentin@gmail.com, could you provide a sample app? I'd like to learn more about the circumstances that cause the problem; putting a clean ViewPager2 inside a clean RecyclerView seems to work fine, so there must be other factors involved.