RecyclerView swipe

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1

Hi everyone,

I am a newbie on Android Development. I have a question about the RecyclerView’s swipe :
Is it possible to enable the swipe just ONLY for some items and not for the whole ?

2

Hey @keldii,

Good to hear from you. :slight_smile:

Yes, it is possible to enable the swipe for some items.

I’ve taken the project from the Android RecyclerView tutorial, then updated the setRecyclerViewItemToucherListener method.

private fun setRecyclerViewItemTouchListener() {

    val itemTouchCallback = object : ItemTouchHelper.SimpleCallback(0, ItemTouchHelper.LEFT or ItemTouchHelper.RIGHT) {
      override fun onMove(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder, viewHolder1: RecyclerView.ViewHolder): Boolean {

        return false
      }

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

       // If the Viewholder is a PhotoHolder type, swipe it away!
        if(viewHolder is RecyclerAdapter.PhotoHolder) {
          val position = viewHolder.adapterPosition
          photosList.removeAt(position)
          recyclerView.adapter!!.notifyItemRemoved(position)
        } else {
          // We have a different view holder type, don't do anything!
        }
      }
    }

    val itemTouchHelper = ItemTouchHelper(itemTouchCallback)
    itemTouchHelper.attachToRecyclerView(recyclerView)
  }

The ItemTouchHelper.onSwiped method contains a RecyclerView.ViewHolder object as a parameter, you can use the Viewholder to check if it’s an item you would like to be swiped away.

I’ve attached the project for you to try out, I also recommend going through the RecyclerView tutorial above.

Any questions, please let me know.

Darryl

galacticon-check-recyclerview-item.zip (347.5 KB)