How to make a timer in the android application? Just use java.util.Timer ?

    3 answers 3

    There is something in the OS - CountDownTimer In general, here's an example for you:

     Timer timer = new Timer(); timer.schedule(new UpdateTimeTask(), 0, 1000); //тикаем каждую секунду без задержки //задача для таймера class UpdateTimeTask extends TimerTask { public void run() { ... } }

    Actually, try CountDownTimer first. Oh, I remembered. Here's another dock for you .

    Only the timer works once (the one that is java.util.Timer ), such is its feature, and you need to intercept an IllegalStateException .

      You can use CountDownTimer.

       public class MyTimer extends CountDownTimer { public MyTimer(long millisInFuture, long countDownInterval) { super(millisInFuture, countDownInterval); } @Override public void onFinish() { // Do something... } public void onTick(long millisUntilFinished) { } }

        If you need a simple timer, you can use the Chronometer .

        For example, put the chronometer in the layout :

         <Chronometer android:id="@+id/chronometer" android:layout_width="wrap_content" android:layout_height="wrap_content"/>

        In Activity , we initialize the Chronometer , we get the time since the start of the application and set it as the base for our Cronometer :

         Chronometer chronometer = (Chronometer) findViewById(R.id.chronometer); long startTime = SystemClock.elapsedRealtime(); chronometer.setBase(startTime);

        We get on the screen a normal ticking timer.

        The format of the time output can be changed in setFormat(String format)