Android Countdown implementation

Android has encapsulated an abstract class Countdowntimer for us to implement the timer function:

   /*** Countdown Timer*/    PrivateCountdowntimer timer =NewCountdowntimer (15 * 60 * 1000, 1000) {        /*** Fixed interval is called, that is, every countdowninterval will callback once method Ontick *@parammillisuntilfinished*/@Override Public voidOnTick (Longmillisuntilfinished)        {Tv_remaining_time.settext (Formattime (millisuntilfinished)); }        /*** Called when the countdown is complete*/@Override Public voidonfinish () {Tv_remaining_time.settext ("00:00");    }    }; /*** Convert milliseconds to minutes: format of seconds * *@paramMillisecond milliseconds *@return     */     PublicString Formattime (Longmillisecond) {        intMinute//minutes        intSecond//Number of secondsMinute = (int) ((millisecond/1000)/60); Second= (int) ((millisecond/1000)% 60); if(Minute < 10) {            if(Second < 10) {                return"0" + Minute + ":" + "0" +second; } Else {                return"0" + Minute + ":" +second; }        }Else {            if(Second < 10) {                returnMinute + ":" + "0" +second; } Else {                returnMinute + ":" +second; }        }    }    /*** Cancel Countdown*/     Public voidTimercancel () {timer.cancel (); }    /*** Start Countdown*/     Public voidTimerstart () {Timer.start (); }

There are two parameters that need to be passed in the construction method:

Parameter 1: Total time of countdown, Unit MS

Parameter 2: Countdown time interval, Unit ms

Method:

Cancel (): Cancel Countdown

OnFinish (): Callback When the current task is completed

OnTick (Long millisunitilfinished): Callback for the current task every time the countdown interval is completed

Start (): Start countdown

Android Countdown implementation