IssueTracker

r.android.com/3205674 will be the last change adding linux stubs to androidx.compose.material3.adaptive

For adaptive, follow along on https://issuetracker.google.com/issues/357731734

Hi, we still don't have updates on this, still trying to get a hold of a similar device. Since this only happens with a single device model it's a bit tricky to reproduce. I talked with the team internally and it seems that any sort of additional debugging to actually find the issue would need to be done on the device.

The code change in https://android-review.googlesource.com/c/platform/frameworks/support/+/2475105 is used by the pointer input system that in the end generates events that will be added to VelocityTracker, so they might change the events that will be added to the tracker.

If not can you check if that could be the cause, since from the bugs it's rare and touched the same kind of devices.

Maybe the device is generating bad MotionEvents and that in turn can cause the scroll to not get the proper events to generate an accurate fling, but without a device to test it it would hard for us to know.

In the meantime, we can take a look at both the events that the pointer input system receives and the MotionEvents generated by the specific device vs a device where it works properly? Maybe that could give an insight on what type of events Compose is receiving.

For looking into the pointer input system events generated to a given composable you can do something like:

    LazyColumn(modifier = Modifier.pointerInput(Unit) {
       coroutineScope {
        awaitEachGesture {
            while (isActive){
                awaitPointerEvent(pass = PointerEventPass.Initial).changes.forEach{
                    println("$it")
                }
            }
        }
       }
    }) 

For looking into MotionEvents you can log inside dispatchTouchEvent of your root activity.

Let us know what you find out.

Thanks.

Thanks, since I don't really know what I'm looking for I attached the logs from the user.

And a simple fling from my device (P6 Pro):

One big difference I can see is the classification. All mine are: classification=AMBIGUOUS_GESTURE all his are classification=NONE

18:18:10.442 Debug                   app.symfonik.music.player.debug      V  MediaGridKt$MediaGrid$1$1$1.invokeSuspend@89: pE: PointerInputChange(id=PointerId(value=15), uptimeMillis=555861375, position=Offset(70.0, 2008.0), pressed=true, pressure=0.31746033, previousUptimeMillis=555861375, previousPosition=Offset(70.0, 2008.0), previousPressed=false, isConsumed=false, type=Touch, historical=[],scrollDelta=Offset(0.0, 0.0))
18:18:10.448 Debug                   app.symfonik.music.player.debug      V  StartActivity.dispatchTouchEvent@377: dTE(true): MotionEvent { action=ACTION_DOWN, actionButton=0, id[0]=0, x[0]=70.0, y[0]=2008.0, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=555861375, downTime=555861375, deviceId=4, source=0x1002, displayId=0, eventId=980593719 }
18:18:10.464 Debug                   app.symfonik.music.player.debug      V  StartActivity.dispatchTouchEvent@377: dTE(false): MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=70.0, y[0]=2008.0, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, classification=AMBIGUOUS_GESTURE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=2, eventTime=555861396, downTime=555861375, deviceId=4, source=0x1002, displayId=0, eventId=725713755 }
18:18:10.478 Debug                   app.symfonik.music.player.debug      V  MediaGridKt$MediaGrid$1$1$1.invokeSuspend@89: pE: PointerInputChange(id=PointerId(value=15), uptimeMillis=555861413, position=Offset(104.0, 1938.0), pressed=true, pressure=0.36507937, previousUptimeMillis=555861375, previousPosition=Offset(70.0, 2008.0), previousPressed=true, isConsumed=false, type=Touch, historical=[HistoricalChange(uptimeMillis=555861400, position=Offset(70.0, 2008.0)), HistoricalChange(uptimeMillis=555861408, position=Offset(87.0, 1974.0)), HistoricalChange(uptimeMillis=555861413, position=Offset(104.0, 1938.0))],scrollDelta=Offset(0.0, 0.0))
18:18:10.480 Debug                   app.symfonik.music.player.debug      V  StartActivity.dispatchTouchEvent@377: dTE(true): MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=104.015724, y[0]=1937.9667, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, classification=AMBIGUOUS_GESTURE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=3, eventTime=555861413, downTime=555861375, deviceId=4, source=0x1002, displayId=0, eventId=461611088 }
18:18:10.492 Debug                   app.symfonik.music.player.debug      V  MediaGridKt$MediaGrid$1$1$1.invokeSuspend@89: pE: PointerInputChange(id=PointerId(value=15), uptimeMillis=555861421, position=Offset(134.1, 1859.6), pressed=true, pressure=0.41269845, previousUptimeMillis=555861413, previousPosition=Offset(104.0, 1938.0), previousPressed=true, isConsumed=false, type=Touch, historical=[HistoricalChange(uptimeMillis=555861417, position=Offset(122.0, 1901.0)), HistoricalChange(uptimeMillis=555861421, position=Offset(134.0, 1860.0))],scrollDelta=Offset(0.0, 0.0))
18:18:10.495 Debug                   app.symfonik.music.player.debug      V  StartActivity.dispatchTouchEvent@377: dTE(true): MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=134.09256, y[0]=1859.6483, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, classification=AMBIGUOUS_GESTURE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=2, eventTime=555861421, downTime=555861375, deviceId=4, source=0x1002, displayId=0, eventId=598428426 }
18:18:10.509 Debug                   app.symfonik.music.player.debug      V  MediaGridKt$MediaGrid$1$1$1.invokeSuspend@89: pE: PointerInputChange(id=PointerId(value=15), uptimeMillis=555861444, position=Offset(169.1, 1637.2), pressed=true, pressure=0.5714286, previousUptimeMillis=555861421, previousPosition=Offset(134.1, 1859.6), previousPressed=true, isConsumed=false, type=Touch, historical=[HistoricalChange(uptimeMillis=555861425, position=Offset(144.0, 1822.0)), HistoricalChange(uptimeMillis=555861429, position=Offset(152.0, 1783.0)), HistoricalChange(uptimeMillis=555861433, position=Offset(158.0, 1745.0)), HistoricalChange(uptimeMillis=555861437, position=Offset(163.0, 1704.0)), HistoricalChange(uptimeMillis=555861442, position=Offset(168.0, 1660.0))],scrollDelta=Offset(0.0, 0.0))
18:18:10.513 Debug                   app.symfonik.music.player.debug      V  StartActivity.dispatchTouchEvent@377: dTE(true): MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=169.06133, y[0]=1637.1816, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, classification=AMBIGUOUS_GESTURE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=5, eventTime=555861444, downTime=555861375, deviceId=4, source=0x1002, displayId=0, eventId=561305389 }
18:18:10.531 Debug                   app.symfonik.music.player.debug      V  MediaGridKt$MediaGrid$1$1$1.invokeSuspend@89: pE: PointerInputChange(id=PointerId(value=15), uptimeMillis=555861460, position=Offset(171.9, 1437.4), pressed=true, pressure=0.6984127, previousUptimeMillis=555861444, previousPosition=Offset(169.1, 1637.2), previousPressed=true, isConsumed=false, type=Touch, historical=[HistoricalChange(uptimeMillis=555861445, position=Offset(170.0, 1617.0)), HistoricalChange(uptimeMillis=555861450, position=Offset(173.0, 1568.0)), HistoricalChange(uptimeMillis=555861454, position=Offset(175.0, 1518.0)), HistoricalChange(uptimeMillis=555861458, position=Offset(174.0, 1466.0))],scrollDelta=Offset(0.0, 0.0))
18:18:10.535 Debug                   app.symfonik.music.player.debug      V  StartActivity.dispatchTouchEvent@377: dTE(true): MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=171.88011, y[0]=1437.3815, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, classification=AMBIGUOUS_GESTURE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=4, eventTime=555861460, downTime=555861375, deviceId=4, source=0x1002, displayId=0, eventId=488565489 }
18:18:10.550 Debug                   app.symfonik.music.player.debug      V  MediaGridKt$MediaGrid$1$1$1.invokeSuspend@89: pE: PointerInputChange(id=PointerId(value=15), uptimeMillis=555861479, position=Offset(120.4, 1172.2), pressed=true, pressure=0.8253969, previousUptimeMillis=555861460, previousPosition=Offset(171.9, 1437.4), previousPressed=true, isConsumed=false, type=Touch, historical=[HistoricalChange(uptimeMillis=555861462, position=Offset(170.0, 1412.0)), HistoricalChange(uptimeMillis=555861466, position=Offset(165.0, 1355.0)), HistoricalChange(uptimeMillis=555861471, position=Offset(152.0, 1295.0)), HistoricalChange(uptimeMillis=555861475, position=Offset(142.0, 1236.0)), HistoricalChange(uptimeMillis=555861479, position=Offset(122.0, 1177.0))],scrollDelta=Offset(0.0, 0.0))
18:18:10.550 Debug                   app.symfonik.music.player.debug      V  StartActivity.dispatchTouchEvent@377: dTE(true): MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=120.384636, y[0]=1172.1539, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, classification=AMBIGUOUS_GESTURE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=5, eventTime=555861479, downTime=555861375, deviceId=4, source=0x1002, displayId=0, eventId=516541290 }
18:18:10.570 Debug                   app.symfonik.music.player.debug      V  MediaGridKt$MediaGrid$1$1$1.invokeSuspend@89: pE: PointerInputChange(id=PointerId(value=15), uptimeMillis=555861504, position=Offset(0.0, 863.0), pressed=true, pressure=0.87301594, previousUptimeMillis=555861479, previousPosition=Offset(120.4, 1172.2), previousPressed=true, isConsumed=false, type=Touch, historical=[HistoricalChange(uptimeMillis=555861483, position=Offset(104.0, 1123.0)), HistoricalChange(uptimeMillis=555861487, position=Offset(87.0, 1070.0)), HistoricalChange(uptimeMillis=555861491, position=Offset(71.0, 1017.0)), HistoricalChange(uptimeMillis=555861495, position=Offset(46.0, 974.0)), HistoricalChange(uptimeMillis=555861500, position=Offset(25.0, 932.0))],scrollDelta=Offset(0.0, 0.0))
18:18:10.572 Debug                   app.symfonik.music.player.debug      V  StartActivity.dispatchTouchEvent@377: dTE(true): MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=0.0, y[0]=863.0, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, classification=AMBIGUOUS_GESTURE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=5, eventTime=555861504, downTime=555861375, deviceId=4, source=0x1002, displayId=0, eventId=989696186 }
18:18:10.573 Debug                   app.symfonik.music.player.debug      V  MediaGridKt$MediaGrid$1$1$1.invokeSuspend@89: pE: PointerInputChange(id=PointerId(value=15), uptimeMillis=555861508, position=Offset(0.0, 863.0), pressed=false, pressure=0.87301594, previousUptimeMillis=555861504, previousPosition=Offset(0.0, 863.0), previousPressed=true, isConsumed=false, type=Touch, historical=[],scrollDelta=Offset(0.0, 0.0))
18:18:10.575 Debug                   app.symfonik.music.player.debug      V  StartActivity.dispatchTouchEvent@377: dTE(true): MotionEvent { action=ACTION_UP, actionButton=0, id[0]=0, x[0]=0.0, y[0]=863.0, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, classification=NONE, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=555861508, downTime=555861375, deviceId=4, source=0x1002, displayId=0, eventId=866274337 }

So after a lot of pain due to java.lang.NoSuchMethodError: No static method AnimatedContent(Ljava/lang/Object;Landroidx/compose/ui/Modifier;Lkotlin/jvm/functions/Function1;Landroidx/compose/ui/Alignment;Lkotlin/jvm/functions/Function4;Landroidx/compose/runtime/Composer;II)V in class Landroidx/compose/animation/AnimatedContentKt; in 1.5 I made him test snapshot 9725230 and the issue is still present.

Attached same logs in case that other PR did change the events received.

Thanks for the logs, I'll take a look and report back.

Bump?

Hey, I took some time looking into the logs, the classification is not really a problem, even though it's different. In my own device the classification is None and I don't see the problem.

Something that caught my attention was that in one of the log files you sent I see a number of Cancel events in the middle of Move events. This might indicate that Motorola's implementation of the Root View is somehow canceling the move events. Any cancelation in the motion events will cause the inner draggable to emit a velocity of 0 to the fling system, which might explain the hiccups your user is seeing.

I'm assuming these events come from the Root Activity in your app and no compose hierarchy is outside of it, this is important because these events will have come straight from the system instead of another compose hierarchy that might send cancel events. If this assumption is correct and you'd like to confirm you might add markers to the logs to indicate the start/end of the flings. You can do this from a NestedScrollConnection around one of your lists. You can emit a log onPreScroll and another onPostFling, this should capture the whole range of a drag+fling movement. If in the middle of the movement you see a MotionEvent action cancel, then this indicates that the system is canceling the movement. The ideal log should be a down event followed by a series of move events and finally an up event.

If this is a device issue, you may ask the user if there has been a system update which might explain why they've only started seeing this recently.

In any case, let us know what you find out. Thanks.

If this is a device issue, you may ask the user if there has been a system update which might explain why they've only started seeing this recently.

That's the first thing I asked him when he report the issue, before doing all the investigation.

This is not hardware as 2 devices does this He have 0 issues on any other applications (But not sure he have other recent compose apps). Reverting to the commit just before that patch does fix the issue for those devices.

The app activity is just a single setContent{} there's no views or anything else and yes I added the logs there as requested.

I can add more logs to see the start and end but I suppose this would just confirm the cancel events, not the source if it happens outside of Compose.

Is there any change to have a workaround or something I can as an hack like filtering / rewriting the wrong events? I suppose a call or a system dialog during a drag would trigger a valid cancel event too?

Hi, we're still waiting for the device. In the meantime, we're addressing some fixes in our velocity tracker that may help you as well. We received a report of a case similar to yours (a single device, this time a watch). They reported that using our fix resolved the problem for them, so it might solve for your as well.

The fix is still being tested, so it hasn't landed as the default behavior, but you can still access it by flipping this flag to true: https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:compose/ui/ui/src/commonMain/kotlin/androidx/compose/ui/input/pointer/util/VelocityTracker.kt;l=688?q=VelocityTracker.kt

Thanks, is this in 1.5 B1 or will only be in 1.6 A1?

They will be available in the next alpha.

Hi, we just received the device. Could you provide an apk with a version of the app where the issue is happening? I tried using a simple LazyColum/LazyGrid, but they scroll fine. Thanks!

Can't build an APK right now you can install from https://play.google.com/store/apps/details?id=app.symfonik.music.player else I'll build tonight.

Hi, thanks I was able to reproduce the issue using your PlayStore version. Using a simple LazyColum/LazyGrid doesn't have the same problem, so this means that there's some specific setup on your screen that may be causing this issue. Is there anything else you can tell us about those screens? From using your app it seems you have some pointer input interactions in the list items? In any case, I'll try to check if there's something different about this device's motion events.

https://issuetracker.google.com/issues/269487059#comment20 have a complete layout inspector export that should show most of the things no ?

From the user report this touches everything that is scrollable.

The only thing I can think of that touches most of the screens would be the nestedScroll. (The container may change)

    Box(
        modifier = Modifier
            .fillMaxSize()
            .nestedScroll(topButtonBarState.nestedScrollConnection),
    )

    val nestedScrollConnection = remember<NestedScrollConnection> {
        object : NestedScrollConnection {
            override fun onPreScroll(available: Offset, source: NestedScrollSource): Offset {
                val delta = available.y
                val newOffset = topBarOffsetPx.floatValue + delta
                topBarOffsetPx.floatValue = newOffset.coerceIn(-topBarScrollDistancePx, 0f)
                return Offset.Zero
            }
        }
    }

Ho and yes most of the images can be long press to drag and drop:

@Composable
fun <T : Any> Draggable(
    modifier: Modifier = Modifier,
    dragDataProducer: () -> T,
    content: @Composable (state: DraggableState) -> Unit,
) {
    var iAmBeingDragged by remember { mutableStateOf(false) }
    var iAmOverTarget by remember { mutableStateOf(false) }
    var mySourcePosition by remember { mutableStateOf(Offset.Zero) }
    val dragInfo = LocalDragInfo.current
    val haptic = LocalHapticFeedback.current
    LaunchedEffect(key1 = iAmOverTarget) {
        if (iAmOverTarget) {
            haptic.performHapticFeedback(HapticFeedbackType.LongPress)
        }
    }
    Box(
        propagateMinConstraints = false, // we stretch content if we are stretched
        modifier = modifier
            .onGloballyPositioned {
                mySourcePosition = it.localToWindow(Offset.Zero)
            }
            .pointerInput(mySourcePosition) {
                detectDragGesturesAfterLongPress(
                    onDragStart = {
                        dragInfo.isDragging = true
                        dragInfo.sourcePosition = mySourcePosition
                        dragInfo.dragPosition = mySourcePosition + it
                        dragInfo.draggableComposable = { content(DraggableState.DRAGGABLE) }
                        dragInfo.draggedData = dragDataProducer()
                        iAmBeingDragged = true
                        haptic.performHapticFeedback(HapticFeedbackType.LongPress)
                    },
                    onDragEnd = {
                        dragInfo.receivingAt?.let { receivingAt ->
                            if (receivingAt.contains(dragInfo.dragPosition + dragInfo.dragOffset)) {
                                dragInfo.draggedDataReceiver?.invoke(dragInfo.draggedData!!)
                            }
                        }
                        dragInfo.isDragging = false
                        dragInfo.dragOffset = Offset.Zero
                        iAmBeingDragged = false
                    },
                    onDragCancel = {
                        dragInfo.dragOffset = Offset.Zero
                        dragInfo.isDragging = false
                        iAmBeingDragged = false
                    },
                    onDrag = { change, dragAmount ->
                        change.consume()
                        dragInfo.dragOffset += Offset(dragAmount.x, dragAmount.y)
                        dragInfo.receivingAt?.let { receivingAt ->
                            iAmOverTarget = receivingAt.contains(dragInfo.dragPosition + dragInfo.dragOffset)
                        }
                    },
                )
            },
    ) {
        content(if (iAmBeingDragged) DraggableState.NORMAL_DRAGGING else DraggableState.NORMAL)
    }
}

So just got another strange report today tied to the drag and drop posted above. Maybe it's linked as it seems there's also some wrong cancel events.

2023-06-06 01:26:42.504 Verbose/Logger: Information: XQ-CQ62/XQ-CQ62/33/13/XQ-CQ62/Sony/ 2023-06-06 01:26:42.505 Verbose/Logger: Information: 5.4.0 (1008[arm64-v8a,armeabi-v7a,armeabi]) - DisplayMetrics{density=2.8125, width=1080, height=2452, scaledDensity=2.8125, xdpi=449.704, ydpi=450.76} - FS:1.0 - AS:1.0

See video but the drag is randomly cancelled.

Hum still no 1.6 release. Is there an ETA? (Like for next release day in 15) or is there some blocker due to U support and it will be longer?

I'd like to avoid playing with snapshots again to avoid too many side effects, but I'd still like to move on with the test :(

So the first issue seems fixed in 1.6 A1 and VelocityTrackerAddPointsFix set to true just after SetContent.

Is there known issues with this for the option to be disabled by default even if it's announced to be forced in RC?

Waiting for feedback about the second drag and drop issue.

And got the confirmation that it fixes the other user drag and drop bug too.

Would love to have details about known issue / reasons it's off in A1 before putting that to open beta.

Hey, I'm glad it fixes your issues. We will be conducting some experiments with the fix before landing it in full in the upcoming releases, that's why it's still turned off by default. The idea is to better understand the uses of our velocity tracker for further improvements. The final goal is that the flag will be removed and the final behavior will be with the fix.

So there's no currently known blockers, just lack of tests and I can try in open beta and report back here? The open beta on that app is limited to 4K users but if I fix 2 users and break 3998 it won't be fun :)

Aw, we do have tests in place. For context, this is a fix to the existing behavior that should approximate Compose velocities to the velocity calculation used by the platform. You should be safe and we will do a similar experiment on our side (that's why we're not turning it to true by default, we'd like to be extra sure the behavior is what we wanted it do be), but if you want to be even safer and you have the means I'd suggest you control the switching on/off of the flag using some remote config.

That app have some targets providers that are full FOSS and their users don't like firebase/google trackers and want full offline functions so no remote config for that one.

I can add a temporary setting for the users to disable the feature if it's broken for them. Does changing the value instantly toggle the behavior or should I restart the app?

It should be instant, since it's backed by state it will cause a recomposition.

Ok perfect I'll do that then. Should we keep this issue opened and I report related issues here (if some occurs) or close and open new ones if needed?

Yeah, I'll keep it open at least until we land the fix in full, and even then if your issue isn't fully fixed I'll keep it open :)

I tried Compose 1.6alpha01 on an Android 7.1.1 device with the VelocityTrackerAddPointsFix set to true. On that device there is still no Fling present.

Eg a working device:

awaitPointerEvent: PointerInputChange(id=PointerId(value=9), uptimeMillis=293894052, position=Offset(238.5, 837.8), pressed=true, pressure=1.0, previousUptimeMillis=293894052, previousPosition=Offset(238.5, 837.8), previousPressed=false, isConsumed=false, type=Touch, historical=[],scrollDelta=Offset(0.0, 0.0))
awaitPointerEvent: PointerInputChange(id=PointerId(value=9), uptimeMillis=293894106, position=Offset(261.2, 921.8), pressed=true, pressure=1.0, previousUptimeMillis=293894052, previousPosition=Offset(238.5, 837.8), previousPressed=true, isConsumed=false, type=Touch, historical=[HistoricalChange(uptimeMillis=293894090, position=Offset(245.0, 750.5)), HistoricalChange(uptimeMillis=293894099, position=Offset(253.3, 780.3))],scrollDelta=Offset(0.0, 0.0))
onPreScroll available: Offset(0.0, 60.1) - Drag
onPostScroll available: Offset(0.0, 0.0) - Drag
onPostScroll consumed: Offset(0.0, 60.1)
awaitPointerEvent: PointerInputChange(id=PointerId(value=9), uptimeMillis=293894120, position=Offset(278.8, 987.7), pressed=true, pressure=1.0, previousUptimeMillis=293894106, previousPosition=Offset(261.2, 921.8), previousPressed=true, isConsumed=false, type=Touch, historical=[HistoricalChange(uptimeMillis=293894107, position=Offset(262.8, 814.3)), HistoricalChange(uptimeMillis=293894115, position=Offset(273.8, 852.3))],scrollDelta=Offset(0.0, 0.0))
onPreScroll available: Offset(0.0, 65.9) - Drag
onPostScroll available: Offset(0.0, 0.0) - Drag
onPostScroll consumed: Offset(0.0, 65.9)
awaitPointerEvent: PointerInputChange(id=PointerId(value=9), uptimeMillis=293894143, position=Offset(299.0, 1124.2), pressed=true, pressure=1.0, previousUptimeMillis=293894120, previousPosition=Offset(278.8, 987.7), previousPressed=true, isConsumed=false, type=Touch, historical=[HistoricalChange(uptimeMillis=293894123, position=Offset(281.8, 887.5)), HistoricalChange(uptimeMillis=293894132, position=Offset(289.8, 932.8)), HistoricalChange(uptimeMillis=293894140, position=Offset(297.0, 988.8))],scrollDelta=Offset(0.0, 0.0))
onPreScroll available: Offset(0.0, 136.5) - Drag
onPostScroll available: Offset(0.0, 0.0) - Drag
onPostScroll consumed: Offset(0.0, 136.5)
awaitPointerEvent: PointerInputChange(id=PointerId(value=9), uptimeMillis=293894157, position=Offset(307.5, 1255.0), pressed=true, pressure=1.0, previousUptimeMillis=293894143, previousPosition=Offset(299.0, 1124.2), previousPressed=true, isConsumed=false, type=Touch, historical=[HistoricalChange(uptimeMillis=293894148, position=Offset(303.3, 1058.3))],scrollDelta=Offset(0.0, 0.0))
awaitPointerEvent: PointerInputChange(id=PointerId(value=9), uptimeMillis=293894164, position=Offset(307.5, 1255.0), pressed=false, pressure=1.0, previousUptimeMillis=293894157, previousPosition=Offset(307.5, 1255.0), previousPressed=true, isConsumed=false, type=Touch, historical=[],scrollDelta=Offset(0.0, 0.0))
onPreScroll available: Offset(0.0, 130.8) - Drag
onPostScroll available: Offset(0.0, 0.0) - Drag
onPostScroll consumed: Offset(0.0, 130.8)
onPreFling available: (0.0, 7657.776) px/sec
onPreScroll available: Offset(0.0, 0.1) - Fling
onPostScroll available: Offset(0.0, 0.0) - Fling
onPostScroll consumed: Offset(0.0, 0.1)

...

onPostScroll consumed: Offset(0.0, 22.0)
onPreScroll available: Offset(0.0, 23.2) - Fling
onPostScroll available: Offset(0.0, 23.2) - Fling
onPostScroll consumed: Offset(0.0, 0.0)
onPostFling available: (0.0, 1901.2562) px/sec
onPostFling consumed: (0.0, 5756.5195) px/sec

The logs from the Android 7.1.x device:

awaitPointerEvent: PointerInputChange(id=PointerId(value=0), uptimeMillis=15408289, position=Offset(352.5, 1039.1), pressed=true, pressure=1.0, previousUptimeMillis=15408289, previousPosition=Offset(352.5, 1039.1), previousPressed=false, isConsumed=false, type=Touch, historical=[],scrollDelta=Offset(0.0, 0.0))
awaitPointerEvent: PointerInputChange(id=PointerId(value=0), uptimeMillis=15408307, position=Offset(353.0, 1034.7), pressed=true, pressure=1.0, previousUptimeMillis=15408289, previousPosition=Offset(352.5, 1039.1), previousPressed=true, isConsumed=false, type=Touch, historical=[HistoricalChange(uptimeMillis=15408302, position=Offset(352.5, 990.1))],scrollDelta=Offset(0.0, 0.0))
awaitPointerEvent: PointerInputChange(id=PointerId(value=0), uptimeMillis=15408323, position=Offset(355.5, 1014.6), pressed=true, pressure=1.0, previousUptimeMillis=15408307, previousPosition=Offset(353.0, 1034.7), previousPressed=true, isConsumed=false, type=Touch, historical=[HistoricalChange(uptimeMillis=15408312, position=Offset(353.5, 981.2))],scrollDelta=Offset(0.0, 0.0))
onPreScroll available: Offset(0.0, -9.5) - Drag
onPostScroll available: Offset(0.0, 0.0) - Drag
onPostScroll consumed: Offset(0.0, -9.5)
awaitPointerEvent: PointerInputChange(id=PointerId(value=0), uptimeMillis=15408395, position=Offset(398.4, 692.4), pressed=true, pressure=1.0, previousUptimeMillis=15408323, previousPosition=Offset(355.5, 1014.6), previousPressed=true, isConsumed=false, type=Touch, historical=[HistoricalChange(uptimeMillis=15408323, position=Offset(355.5, 965.2)), HistoricalChange(uptimeMillis=15408341, position=Offset(358.5, 937.2)), HistoricalChange(uptimeMillis=15408362, position=Offset(364.5, 892.2)), HistoricalChange(uptimeMillis=15408364, position=Offset(370.5, 845.3)), HistoricalChange(uptimeMillis=15408371, position=Offset(377.5, 784.3)), HistoricalChange(uptimeMillis=15408393, position=Offset(390.5, 714.4))],scrollDelta=Offset(0.0, 0.0))
onPreScroll available: Offset(0.0, -322.1) - Drag
onPostScroll available: Offset(0.0, 0.0) - Drag
onPostScroll consumed: Offset(0.0, -322.1)
awaitPointerEvent: PointerInputChange(id=PointerId(value=0), uptimeMillis=15408426, position=Offset(403.4, 541.5), pressed=true, pressure=1.0, previousUptimeMillis=15408395, previousPosition=Offset(398.4, 692.4), previousPressed=true, isConsumed=false, type=Touch, historical=[],scrollDelta=Offset(0.0, 0.0))
awaitPointerEvent: PointerInputChange(id=PointerId(value=0), uptimeMillis=15408472, position=Offset(403.4, 541.5), pressed=false, pressure=1.0, previousUptimeMillis=15408426, previousPosition=Offset(403.4, 541.5), previousPressed=true, isConsumed=false, type=Touch, historical=[],scrollDelta=Offset(0.0, 0.0))
onPreScroll available: Offset(0.0, -150.8) - Drag
onPostScroll available: Offset(0.0, 0.0) - Drag
onPostScroll consumed: Offset(0.0, -150.8)
onPreFling available: (0.0, 0.0) px/sec
onPostFling available: (0.0, 0.0) px/sec
onPostFling consumed: (0.0, 0.0) px/sec

Why is onPreFling available: (0.0, 0.0) px/sec always zero? I have a feeling this is what causes my issue. How would I be able to debug this further?

Hi wbervoets@gmail.com, could you open up another ticket so we can continue this conversation there? I'd need to go through your setup to better understand how your hierarchy looks like to say if this actually the same issue or something different.

#50 as requested: https://issuetracker.google.com/issues/288499763

Ok so it seems the new pointer fix does have side effects on fling. The native Compose one or the Chris banes Snapper.

I'm yet to build a repro and fully understand what's going on but on a LazyColumn with a small width and val flingBehavior = rememberSnapperFlingBehavior(listState, snapOffsetForItem = SnapOffsets.Start) (Snapper version) then in some cases when you fling and end the fling gesture outside of the column the fling goes crazy.

When it happens typically, you fling up the lazycolumn start to scroll down as expected then quickly scroll up ultra fast up to the first item of the list.

Disabling VelocityTrackerAddPointsFix restore proper behavior. This only occurs when the fling ends outside of the box of the column so no issue on full screen lazy column.

Ok so no there other things broken with that option enabled :(

See attached videos OK is with that option off and NOK is with the option ON. As you can see the flings trigger erratic NestedScrollConnection data.

For that screen the NestedScrollConnection is :

internal class EnterAlwaysNestedScrollConnection(
    private val offsetY: MutableState<Int>,
    private val toolbarState: CollapsingToolbarState,
    private val flingBehavior: FlingBehavior,
) : NestedScrollConnection {
    private val scrollDelegate = ScrollDelegate(offsetY)

    override fun onPreScroll(available: Offset, source: NestedScrollSource): Offset {
        val dy = available.y

        val toolbar = toolbarState.height.toFloat()
        val offset = offsetY.value.toFloat()

        val consume = if (dy < 0) {
            val toolbarConsumption = toolbarState.dispatchRawDelta(dy)
            val remaining = dy - toolbarConsumption
            val offsetConsumption = remaining.coerceAtLeast(-toolbar - offset)
            scrollDelegate.doScroll(offsetConsumption)

            toolbarConsumption + offsetConsumption
        } else {
            val offsetConsumption = dy.coerceAtMost(-offset)
            scrollDelegate.doScroll(offsetConsumption)
            val toolbarConsumption = toolbarState.dispatchRawDelta(dy - offsetConsumption)
            offsetConsumption + toolbarConsumption
        }

        return Offset(0f, consume)
    }

    override suspend fun onPreFling(available: Velocity): Velocity {
        val left = if (available.y > 0) {
            toolbarState.fling(flingBehavior, available.y)
        } else {
            available.y
        }

        return Velocity(x = 0f, y = available.y - left)
    }
}

Thanks to Scaleway I've lost a tons of time in urgent servers migrations that I need to recover so won't be able to build a smaller repro project for now. But can provide details or anything useful to help fix those as the cure seems worse than the decease.

Thanks for reporting this, I'll go back to trying to get a fix for the issue.

Were you able to reproduce? I might be able to schedule a couple of hours on trying to repro end of next week if not.

Hey, yeah, I have a possible fix, trying to get it landed before the next release. Thanks!

Ok thanks.

On my side I'll go in prod next week with 1.6 A1 and VelocityTrackerAddPointsFix on, but auto disabled on the bugged parts of the app and that user can opt out.

This might brings more reports, but so far after a week and +/- 2K users having that version active in the beta no other issues reported.

So quickly tested alpha 02 and #52 is fixed.

But #53 is still completely broken.

The workaround I use on that screen:

            DisposableEffect(Unit) {
                val saved = VelocityTrackerAddPointsFix
                VelocityTrackerAddPointsFix = false
                onDispose {
                    VelocityTrackerAddPointsFix = saved
                }
            }

The good news is that I did not get any other report of any other issue. So if we can figure out #53 I guess this will be good.

That's odd, the fix I landed on #58 was addressed because of your report #53, the normal flings on a list stopped working properly when VelocityTrackerAddPointsFix was true. With #58 this should be fixed + the original. I'll need to check it again in this case.

The flings are the #52 and are fixed.

The #53 is about values sent to NestedScrollConnection

I'm on kid duty this week but can try to debug / log stuff in my app if you can't repro. I did 0 checks on that part so no idea if the issue is the onPreFling or onPreScroll

Just tell me what you need.

Some quick logs:

As you can see there's some inversion in the onPreScroll values and a complete reduce of the values too.

It happens after the onPreFling

That code is a quoted earlier:

    override suspend fun onPreFling(available: Velocity): Velocity {
        val left = if (available.y > 0) {
            toolbarState.fling(flingBehavior, available.y)
        } else {
            // If velocity < 0, the main content should have a remaining scroll space
            // so the scroll resumes to the onPreScroll(..., Fling) phase. Hence we do
            // not need to process it at onPostFling() manually.
            available.y
        }

        return Velocity(x = 0f, y = available.y - left)
    }

The state fling function is :

    suspend fun fling(flingBehavior: FlingBehavior, velocity: Float): Float {
        var left = velocity
        scroll {
            with(flingBehavior) {
                left = performFling(left)
            }
        }

        return left
    }

I do not change fling or snap in that screen so it's probably using DefaultFlingBehavior, not sure what is happening there but I hope you do :)

Logs:

Not working

Up

17:06:14.712 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -6.5) - Drag
17:06:14.724 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -94.5) - Drag
17:06:14.734 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -125.9) - Drag
17:06:14.744 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -351.8) - Drag
17:06:14.751 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -221.0) - Drag
17:06:14.761 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -200.1) - Drag
17:06:14.772 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreFling-QWom1Mo@231: onPreFling: (0.0, 3595.06) px/sec
17:06:15.091 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 0.0) - Fling
17:06:15.100 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 5.7) - Fling
17:06:15.109 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 5.4) - Fling
17:06:15.118 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 4.9) - Fling
17:06:15.125 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 4.8) - Fling
17:06:15.133 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 3.7) - Fling
17:06:15.142 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 3.2) - Fling
17:06:15.150 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 3.0) - Fling
17:06:15.158 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 2.3) - Fling
17:06:15.166 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 2.0) - Fling
17:06:15.175 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 1.9) - Fling
17:06:15.183 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 1.4) - Fling
17:06:15.191 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 1.2) - Fling
17:06:15.200 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 1.1) - Fling
17:06:15.208 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 0.8) - Fling
17:06:15.217 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 0.7) - Fling
17:06:15.225 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 0.5) - Fling
17:06:15.233 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 0.5) - Fling
17:06:15.241 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 0.3) - Fling
17:06:15.250 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 0.2) - Fling
17:06:15.257 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 0.1) - Fling
17:06:15.267 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 0.0) - Fling

Down

17:06:27.898 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 80.6) - Drag
17:06:27.910 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 175.1) - Drag
17:06:27.921 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 233.2) - Drag
17:06:27.929 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 240.1) - Drag
17:06:27.932 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreFling-QWom1Mo@231: onPreFling: (0.0, -5988.225) px/sec
17:06:27.932 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 0.0) - Fling
17:06:27.938 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -95.6) - Fling
17:06:27.946 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -47.5) - Fling
17:06:27.954 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -53.0) - Fling
17:06:27.963 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -46.6) - Fling
17:06:27.971 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -46.1) - Fling
17:06:27.979 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -51.0) - Fling
17:06:27.988 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -44.5) - Fling
17:06:27.996 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -43.6) - Fling
17:06:28.004 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -48.1) - Fling
17:06:28.013 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -41.8) - Fling
17:06:28.020 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -40.8) - Fling
17:06:28.029 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -39.8) - Fling
17:06:28.037 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -43.5) - Fling
17:06:28.045 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -37.6) - Fling
17:06:28.053 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -36.6) - Fling
17:06:28.062 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -39.9) - Fling
17:06:28.071 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -34.4) - Fling
17:06:28.079 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -33.4) - Fling
17:06:28.089 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -36.3) - Fling
17:06:28.095 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -31.4) - Fling
17:06:28.104 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -30.3) - Fling
17:06:28.112 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -32.9) - Fling
17:06:28.120 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -28.4) - Fling
17:06:28.129 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -27.5) - Fling
17:06:28.136 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -29.8) - Fling

Working: Up

17:07:22.088 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -112.5) - Drag
17:07:22.099 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -132.7) - Drag
17:07:22.109 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -164.8) - Drag
17:07:22.120 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -209.3) - Drag
17:07:22.127 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -467.4) - Drag
17:07:22.140 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreFling-QWom1Mo@231: onPreFling: (0.0, -35351.68) px/sec
17:07:22.140 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -0.8) - Fling
17:07:22.157 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -847.5) - Fling
17:07:22.183 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -881.7) - Fling
17:07:22.229 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -1753.3) - Fling
17:07:22.280 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -1728.7) - Fling
17:07:22.332 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -1692.4) - Fling
17:07:22.382 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -1649.3) - Fling
17:07:22.441 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -1847.9) - Fling
17:07:22.498 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -1769.5) - Fling
17:07:22.561 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -1910.3) - Fling
17:07:22.621 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -1587.8) - Fling
17:07:22.678 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -1527.2) - Fling
17:07:22.725 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -1198.0) - Fling
17:07:22.776 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -1165.7) - Fling
17:07:22.812 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -734.7) - Fling
17:07:22.846 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -730.4) - Fling
17:07:22.870 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -521.8) - Fling
17:07:22.897 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -488.6) - Fling
17:07:22.912 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -335.2) - Fling
17:07:22.933 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -485.2) - Fling
17:07:22.953 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -324.9) - Fling
17:07:22.973 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -295.8) - Fling
17:07:22.989 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -312.7) - Fling
17:07:23.007 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -446.4) - Fling
17:07:23.026 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -278.6) - Fling
17:07:23.041 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -293.8) - Fling
17:07:23.057 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -134.4) - Fling
17:07:23.066 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -284.4) - Fling
17:07:23.078 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -133.0) - Fling
17:07:23.089 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -145.4) - Fling
17:07:23.096 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -129.2) - Fling
17:07:23.111 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -256.4) - Fling
17:07:23.119 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -140.6) - Fling
17:07:23.135 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -250.0) - Fling
17:07:23.142 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -136.8) - Fling
17:07:23.158 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -241.9) - Fling
17:07:23.169 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -135.1) - Fling
17:07:23.179 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -117.0) - Fling
17:07:23.189 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -248.7) - Fling
17:07:23.202 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -114.6) - Fling
17:07:23.211 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -112.8) - Fling
17:07:23.218 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -126.9) - Fling
17:07:23.229 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -112.8) - Fling
17:07:23.238 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -109.8) - Fling
17:07:23.253 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -232.4) - Fling
17:07:23.262 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, -108.6) - Fling

Down

17:07:58.523 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 102.3) - Drag
17:07:58.530 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 186.1) - Drag
17:07:58.541 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 196.6) - Drag
17:07:58.542 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreFling-QWom1Mo@231: onPreFling: (0.0, 32128.457) px/sec
17:07:58.565 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 0.7) - Fling
17:07:58.581 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 513.0) - Fling
17:07:58.601 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 544.8) - Fling
17:07:58.624 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 800.0) - Fling
17:07:58.653 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 795.9) - Fling
17:07:58.680 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 1041.7) - Fling
17:07:58.712 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 1028.2) - Fling
17:07:58.743 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 769.8) - Fling
17:07:58.765 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 759.2) - Fling
17:07:58.793 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 746.7) - Fling
17:07:58.815 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 733.3) - Fling
17:07:58.843 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 721.4) - Fling
17:07:58.868 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 707.7) - Fling
17:07:58.902 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 912.1) - Fling
17:07:58.928 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 886.7) - Fling
17:07:58.960 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 652.4) - Fling
17:07:58.977 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 637.0) - Fling
17:07:59.005 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 621.3) - Fling
17:07:59.026 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 391.3) - Fling
17:07:59.044 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 597.1) - Fling
17:07:59.061 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 394.2) - Fling
17:07:59.079 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 390.3) - Fling
17:07:59.093 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 179.7) - Fling
17:07:59.107 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 381.1) - Fling
17:07:59.115 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 173.9) - Fling
17:07:59.129 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 347.8) - Fling
17:07:59.142 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 192.1) - Fling
17:07:59.156 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 337.8) - Fling
17:07:59.168 Debug                   app.symfonik.music.player.debug      E  EnterAlwaysNestedScrollConnection.onPreScroll-OzD1aCk@225: onPreScroll: Offset(0.0, 188.5) - Fling

Ok so back from holidays and tested with a recent snapshot 10683443 that contains this and it's still broken for #62 #53

BTW I also got a new strange crash with that snapshot : https://issuetracker.google.com/issues/295745063#comment14 that is touch related, maybe you have an idea.

Hey, I'm looking into 53 now, I'll let you know if something's up. From what I understand in your logs in 62, "Not Working" happens when you activate the flag and "Working" when you disable it, right?

Yes exactly.

Are you able to reproduce with the given code or need more?

Hey, yeah, I'm working on a fix for everything :D I'll update here once it lands.

Hey, I submitted a fix for this last Friday so if you want to have a look before the next release I think you can just use a recent snapshot. The fix is still behind the same flag though. Let me know how it goes :)

Works with 10758292, and could not find regressions in the other parts of the app :)

That was a long running issue thanks for all the fixes.

Completely unrelated but do you think you can help me have https://issuetracker.google.com/issues/297231233 moved to higher priority and maybe someone available? This is highly impacting issue with a simple repro I was able to make for once.

So I do not have a Samsung device but it seems on some device Samsung allows apps to run in popup windows.

When in that mode the app does not receive any input at all. Even when leaving that mode does not restore touches. Only kill app and restart.

No idea what to log if you can't reproduce. But will again need you here.

Edit: Seems this also happens with Lineage OS that offers the same feature. (But can't reproduce on pixels with freeform dev option enabled)