Android custom long press time/delay

LongPress.kt

import android.app.Fragment
import android.graphics.Rect
import android.os.Handler
import android.view.MotionEvent
import android.view.View
import android.view.ViewConfiguration

class LongPress: Fragment(), View.OnTouchListener {

    val LONG_PRESS_DELAY = 500

    val handler = Handler()
    var boundaries: Rect? = null

    var onTap = Runnable {
        handler.postDelayed(onLongPress, LONG_PRESS_DELAY - ViewConfiguration.getTapTimeout().toLong())
    }

    var onLongPress = Runnable {
        
        // Long Press
    }

    override fun onTouch(view: View, event: MotionEvent): Boolean {
        when (event.action) {
            MotionEvent.ACTION_DOWN -> {
                boundaries = Rect(view.left, view.top, view.right, view.bottom)
                handler.postDelayed(onTap, ViewConfiguration.getTapTimeout().toLong())
            }
            MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> {
                handler.removeCallbacks(onLongPress)
                handler.removeCallbacks(onTap)
            }
            MotionEvent.ACTION_MOVE -> {
                if (!boundaries!!.contains(view.left + event.x.toInt(), view.top + event.y.toInt())) {
                    handler.removeCallbacks(onLongPress)
                    handler.removeCallbacks(onTap)
                }
            }
        }
        return true
    }
}