kotlin倒计时

var TotalTime : Long = 2*60*60*1000 //总时长 2小时
    var countDownTimer=object : CountDownTimer(TotalTime,1000){//1000ms运行一次onTick里面的方法
        override fun onFinish() {
            Log.d(TAG,"==倒计时结束")
        }

        override fun onTick(millisUntilFinished: Long) {
            var hour=millisUntilFinished/1000/60/60
            var minute=millisUntilFinished/1000/60%60
            var second=millisUntilFinished/1000%60
            Log.d(TAG,"==倒计时"+hour+"小时"+minute+"分"+second+"秒")
        }
    }.start()