Motion scene not triggering with NestedScrollView as anchor point in beta02

Hi there!

I have a scenario which works fine on 2.1-beta01 and before but breaks on beta02.

I have the following transition

     <Transition
        android:id="@+id/transition"
        app:constraintSetEnd="@id/collapsed"
        app:constraintSetStart="@id/expanded"
        app:duration="1000"
        app:motionInterpolator="easeInOut">
        <OnSwipe
            app:dragDirection="dragUp"
            app:moveWhenScrollAtTop="true"
            app:touchAnchorId="@id/nsv_container"
            app:touchAnchorSide="top" />
    </Transition>

The layout I’m using has a MotionLayout as the parent and a child NestedScrollView which contains a LinearLayout with some chid views. Before beta02, the Motion animation would trigger as soon as I started scrolling the contents of the NestedScrollView but on beta02, I have to reach the bottom of the NestedScrollView to trigger it.

The layout is company code so I can’t share it but I think I’ve given enough context as to what’s happening.

Edit: More context, the MotionLayout is used to create a “Collapsing Toolbar” style animation, nothing too complex.

[jafu888]

This will be fixed in next build.

[gusandrianos]

As of 2.1.0-rc1, this is working fine!