override fun onTouch(v: View?, event: MotionEvent?): Boolean {
    val item = ClipData.Item(v!!.tag.toString())
    val mimeTypes = arrayOf(ClipDescription.MIMETYPE_TEXT_PLAIN)

    val data = ClipData(v.tag.toString(), mimeTypes, item)

    val mShadow = View.DragShadowBuilder(v)

    when (v.id) {
        R.id.wordTV ->
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                v.startDragAndDrop(data, mShadow, v, DRAG_FLAG_OPAQUE)
            } else {
                v.startDrag(data, mShadow, v, DRAG_FLAG_OPAQUE)
            }
    }

    return false
}