检查拖放动画是否结束

Question

我想在RV拖放动画结束的地方做一些动作。如何检查？

拖放助手

class SimpleItemTouchHelperCallback(private val mAdapter: ItemTouchHelperAdapter) : ItemTouchHelper.Callback() {
    override fun isLongPressDragEnabled() = true

    override fun isItemViewSwipeEnabled() = true

    override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {}

    override fun getMovementFlags(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder): Int {
        val dragFlags = ItemTouchHelper.UP or ItemTouchHelper.DOWN
        val swipeFlags = ItemTouchHelper.START or ItemTouchHelper.END

        return ItemTouchHelper.Callback.makeMovementFlags(dragFlags, swipeFlags)
    }

    override fun onMove(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder, target: RecyclerView.ViewHolder): Boolean {
        mAdapter.onItemMove(viewHolder.adapterPosition, target.adapterPosition)

        return true
    }
}

Recyclerview适配器

interface ItemTouchHelperAdapter {
    fun onItemMove(fromPosition: Int, toPosition: Int): Boolean
}

将适配器与rv配对的代码

val drugAndDropHandler = SimpleItemTouchHelperCallback(adapter)
ItemTouchHelper(drugAndDropHandler).attachToRecyclerView(multiple_stores_list)