val countNumber: TextView = findViewById(R.id.textView2)
        var count:Int = 5
        val countDownTimer = object : CountDownTimer(5000, 1000){

            override fun onFinish() {
                countNumber.text = "finish"
            }
            override fun onTick(millisUntilFinished: Long) {
                count--
                countNumber.text = count.toString()
            }
        }
        countDownTimer.start()
        val button2: Button = findViewById(R.id.button2)
        button2.setOnClickListener {
            count= 5
            countDownTimer.start()
        }