Itemtouch helper kotlin : when i swipe left my button needs 3 cliks

Question

here is my problem that I have been trying to solve for a week now. When I perform a swipe to the left to reveal my buttons, when the view locks at maxleft, the click is only triggered after the third attempt. However, when I use "is currently active" and stop the swipe before maxleft, the click is triggered immediately. I have tried many different solutions, but none of them work. I also tried to implement a childraw over and clearview, but without any results. If you have any suggestions, I would be very grateful. Thank you.

I have tried to implement a clearview method with a condition if dx was less than maxswipe left and to bring back the carview and swippeButton to the position of -maxswipeleft, but it still requires 3 clicks. I also tried the notifydachanged in the on swipe; it works, but the swipe on the items is not performed in the correct position when I have more than 6 items. With the itemdatachanged, it takes two swipes to reveal the buttons.

I have simplified the layouts as much as possible, but I still have the same problem with three clicks. According to the logs, I think that when dx is less than maxleft, the swipe is considered finished, and I enter the onswipe function which requires 3 clicks to exit and update the position.

Any suggestions would be valuable. Thank you.

• Community: Please provide enough code so others can better understand or reproduce the problem.

Answer 1

 class ItemSwipeCallback(private val adapter: ListAdapter) : ItemTouchHelper.SimpleCallback(0, ItemTouchHelper.RIGHT) {
 //var isSwiped = false
 override fun getMovementFlags(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder): Int {
 if (viewHolder.itemViewType == R.layout.list_row) {
 return makeMovementFlags(0, 0)
 } else {
 val swipeFlags = ItemTouchHelper.LEFT or ItemTouchHelper.RIGHT
 return makeMovementFlags(0, swipeFlags)
 }
 }
 override fun onMove(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder, target: RecyclerView.ViewHolder): Boolean {
 return true
 }
 override fun getSwipeThreshold(viewHolder: RecyclerView.ViewHolder): Float {
 return super.getSwipeThreshold(viewHolder)
 }
 override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {
 //adapter.notifyDataSetChanged()
// val position = viewHolder.adapterPosition
// val item = adapter.itemList[position]
// adapter.notifyDataSetChanged()
 //adapter.notifyDataSetChanged()
// val position = viewHolder.adapterPosition
// adapter.notifyItemChanged(position)
 //isSwiped =true
// println("appel")
// return
 }
 override fun onChildDraw(c: Canvas, recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder, dX: Float, dY: Float, actionState: Int, isCurrentlyActive: Boolean) {
 if (viewHolder.itemViewType != TYPE_ITEM) {
 return
 }
// if (isSwiped == true){
// return
// }
 val cardView = viewHolder.itemView.findViewById<CardView>(R.id.cardView)
 val swipeButtons = viewHolder.itemView.findViewById<View>(R.id.swipe_buttons)
 if (actionState == ItemTouchHelper.ACTION_STATE_SWIPE) {
 val maxTranslationLeft = recyclerView.width * 0.66f
 var cardViewTranslationX = 0f
 if (dX < 0) {
 // Slide towards the left
 cardViewTranslationX = Math.max(dX, -maxTranslationLeft)
 cardView.translationX = cardViewTranslationX
 val swipeButtonsTranslationX = Math.min(0f, cardView.translationX + swipeButtons.width)
 swipeButtons.translationX = swipeButtonsTranslationX
 // Increase button width
 val swipeWidth = Math.abs(cardViewTranslationX)
 swipeButtons.layoutParams.width = swipeWidth.toInt()
 swipeButtons.requestLayout()
 println(swipeButtons.translationX)
 println("cardview ${cardView.translationX}")
 } else if (dX > 0) {
 // Swipe to right
 cardView.translationX = 0f
 }
 } else {
 super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive)
 }
 }
}

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