kotlin 倒计时

private val countDownTask = object : CountDownTimer(60000, 1000) {
        override fun onTick(s: Long) {
             binding.unBindSend.text="确定 ${s / 1000}s"

        }

        override fun onFinish() {
             binding.unbindMenuWrap.visibility=View.GONE

        }
    }

countDownTask.cancel()
    countDownTask.start()