Kotlin OnTouchListener

gistfile1.txt

package com.emedinaa.kotlin

import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.view.MotionEvent
import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : AppCompatActivity() {

    var pDownX=0
    var pDownY=0
    var pUpX=0
    var pUpY=0

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        /*imageView.setOnTouchListener(object:View.OnTouchListener{
            override fun onTouch(v: View?, event: MotionEvent?): Boolean {

                return true
            }
        })*/

        imageView.setOnTouchListener { v, event ->
            val action = event.action
            when(action){

                MotionEvent.ACTION_DOWN -> {
                    pDownX= event.x.toInt()
                    pDownY= event.y.toInt()
                }


                MotionEvent.ACTION_MOVE -> { }

                MotionEvent.ACTION_UP -> {
                    pUpX= event.x.toInt()
                    pUpY= event.y.toInt()
                }

                MotionEvent.ACTION_CANCEL -> {

                }

                else ->{

                }
            }
            true
        }
    }
}

very nice!