PiotrPrus

class MySceneGridItemRecyclerViewAdapter(
    private val mValues: MutableList<DummyItem>,
    private val animationListener: (state: AnimationState, tag: String) -> Unit
) : RecyclerView.Adapter<MyViewHolder>() {

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
        val view = LayoutInflater.from(parent.context)
            .inflate(R.layout.item_scene_13_grid, parent, false)
        return ViewHolder(view)
    }

PiotrPrus

class GridListFragment {
    ...
    
    adapter = MySceneGridItemRecyclerViewAdapter( itemList) { state, tag ->
        Log.d("Scene13Fragment", "Animation state: $state")
        animationStateLiveData.value = state to tag
    }

    private fun initObservers() {
        animationStateLiveData.observe(viewLifecycleOwner, Observer { pair ->

PiotrPrus

class CustomMotionLayout : MotionLayout {
    constructor(context: Context?) : super(context)
    constructor(context: Context?, attrs: AttributeSet?) : super(
        context,
        attrs
    )

    constructor(
        context: Context?,
        attrs: AttributeSet?,

PiotrPrus

class InterceptScrollingRecyclerView: RecyclerView {

    constructor(context: Context): super(context)

    constructor(context: Context, attrs: AttributeSet): super(context, attrs)

    var swipeFrozen = false

    override fun onInterceptTouchEvent(e: MotionEvent?): Boolean {
        if (swipeFrozen) {

PiotrPrus

    private fun initObservers() {
        animationStateLiveData.observe(viewLifecycleOwner, Observer { pair ->
            when (pair.first) {
                AnimationState.STARTED, AnimationState.IN_PROGRESS -> {
                    recyclerView.swipeFrozen = true
                }
                else -> {
                    recyclerView.swipeFrozen = false
                }
            }

PiotrPrus

	<ConstraintSet
		android:id="@+id/goneRight"
		app:deriveConstraintsFrom="@id/like">
		<Constraint
			android:id="@+id/cardViewScene"
			android:layout_marginStart="600dp"
			android:rotation="70"
			app:layout_constraintHeight_percent="0.9"
			app:layout_constraintStart_toStartOf="parent"
			app:layout_constraintTop_toTopOf="parent"

PiotrPrus

override fun onTransitionCompleted(p0: MotionLayout?, p1: Int) {
  animationListener(AnimationState.COMPLETED)
    if (p1 == R.id.goneRight || p1 == R.id.goneLeft) {
      removeItemListener(position)
    }
}

PiotrPrus

<Transition
    app:autoTransition="animateToEnd"
    app:constraintSetEnd="@id/goneRight"
    app:constraintSetStart="@id/like"
    app:duration="50" />

PiotrPrus

    <Transition
        app:constraintSetEnd="@id/like"
        app:constraintSetStart="@id/rest"
        app:duration="100">
        <OnSwipe
            app:dragDirection="dragRight"
            app:onTouchUp="autoCompleteToStart"
            app:touchAnchorId="@id/cardViewScene"
            app:touchAnchorSide="right" />

PiotrPrus

    private val awaitListChanged: suspend () -> Unit = {
        suspendCancellableCoroutine<Int> { cont ->
            val observer = object : RecyclerView.AdapterDataObserver() {
                override fun onItemRangeRemoved(positionStart: Int, itemCount: Int) {
                    unregisterAdapterDataObserver(this)
                    cont.resume(positionStart)
                }
            }
            cont.invokeOnCancellation { unregisterAdapterDataObserver(observer) }
            registerAdapterDataObserver(observer)