Intercept motion event from RecyclerView in opened PopupWindow

Question

In my case I want to open PopupWindow by long press on ViewHolder item and process motion event in this window without removing finger. How can I achieve this?

I trying to open CustomPopupWindow by follow:

override fun onBindViewHolder(holder: Item, position: Int) {
    val item = items[position]
    holder.bindView(testItem)
    holder.itemView.view.setOnLongClickListener {    
        val inflater = LayoutInflater.from(parent?.context)
        val view = inflater.inflate(R.layout.popup_window, null)
        val popupMenu = CustomPopupWindow(view, ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)
        popupMenu.elevation = 5f
        popupMenu.showAsDropDown(holder.itemView.view)
        true
    }
}

and after that disable scrolling in RecyclerView:

class CustomLayoutManager(context: Context) : LinearLayoutManager(context) {

    var scrollEnabled: Boolean = true

    override fun canScrollVertically(): Boolean {
        return scrollEnabled
    }
}

Here my CustomPopupWindow:

class CustomPopupWindow(contentView: View?, width: Int, height: Int) : PopupWindow(contentView, width, height), View.OnTouchListener {

    init {
        contentView?.setOnTouchListener(this)
        setTouchInterceptor(this)
    }

    override fun onTouch(v: View?, event: MotionEvent?): Boolean {
        when (event?.action) {
            MotionEvent.ACTION_DOWN -> {
                Log.i("Touch", "Touch")
            }
            MotionEvent.ACTION_MOVE -> {
                Log.i("Touch", "Event {${event.x}; ${event.y}}")
            }
            MotionEvent.ACTION_UP-> {
                Log.i("Touch", "Up")
            }
        }
        return true
    }
}

In this case onTouch() event never called in CustomPopupWindow only if I remove finger and tap again.

Thanks advance!

SOLVED

I solved this by adding a touch listener to the anchor view:

holder.itemView.view.setOnLongClickListener {    
    val inflater = LayoutInflater.from(parent?.context)
    val view = inflater.inflate(R.layout.popup_window, null)
    val popupMenu = CustomPopupWindow(view, ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)
    popupMenu.elevation = 5f
    it.setOnTouchListener(popupMenu) // solution
    popupMenu.showAsDropDown(it)
    true
}

Thanks @Brucelet

score 0 · Answer 1 · answered Mar 05 '18 at 04:01

0

If you can refactor to using a PopupMenu, then I think PopupMenu.getDragToOpenListener() will do what you want. Similar for ListPopupWindow.createDragToOpenListener().

You could also look at the implementation of those methods for inspiration in creating your own.

answered Mar 05 '18 at 04:01

RussHWolf

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Thanks, for answer. It working fine. But I want to use custom view popup created from inflate. Is it possible in PopupMenu or ListPopupWindow? – Anonymous Mar 05 '18 at 15:28
Not easily, I don't think, but you could try looking at the implementation of those other methods and see if you can do something similar. – RussHWolf Mar 06 '18 at 01:22
Thanks for help, I will try it. But maybe there is some other way to solve this problem without menu? – Anonymous Mar 06 '18 at 06:16

Intercept motion event from RecyclerView in opened PopupWindow

1 Answers1