Continuously increase integer value as the button is pressed

Question

I\'m new to Android so sorry if the question is easy to answer. I have two buttons, a decrease and an increase button, and in the middle of them a TextView which displays a

Answer 1

for kotlin user

    myButton.setOnLongClickListener {
        val handler = Handler(Looper.myLooper()!!)
        val runnable : Runnable = object : Runnable {
            val number = 0
            override fun run() {
                handler.removeCallbacks(this)
                if (myButton.isPressed) {
                    val newNumber= number + 1
                    textView.text = "$newNumber Items"
                    handler.postDelayed(this, 100)
                }
            }
        }
        handler.postDelayed(runnable,0)
        true
    }