How Automatically Countdown Timer in Android?

Question

I'm working with timer function in Android, I have the code of 1 to up timer. Please help me make it a countdown timer without clicking a button?

public class MainActivity extends Activity {

    public int time = 0;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        //Declare the timer
        Timer t = new Timer();
        //Set the schedule function and rate
        t.scheduleAtFixedRate(new TimerTask() {

            @Override
            public void run() {
                runOnUiThread(new Runnable() {

                    @Override
                    public void run() {
                        TextView tv = (TextView) findViewById(R.id.main_timer_text);
                        tv.setText(String.valueOf(time));
                        time += 1;
                    }

                });
            }

        }, 0, 1000);
    }

check this if it helps http://stackoverflow.com/questions/17839419/android-thread-for-a-timer — Raghunandan, Dec 14 '13 at 17:51
you need to customize and use the countdown timer suggested in the post :( — Raghunandan, Dec 14 '13 at 18:06

Josef Raška · Accepted Answer · 2013-12-14T18:10:58.117

3

You can use CountDownTimer for this

new CountDownTimer(20000, 1000) {

 public void onTick(long millisUntilEnd) {
     mTextView.setText(String.valueOf(millisUntilEnd / 1000));
 }

 public void onFinish() {
     mTextView.setText("done");
 }
}.start();

This will update your time TextView each second for 20 seconds.

edited Dec 14 '13 at 18:10

answered Dec 14 '13 at 17:59

Josef Raška

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How Automatically Countdown Timer in Android?

1 Answers1