Call method after delay

Question

I've crated Log in screen, and if user mistake 3 times i want to show timer of 2 min. I want that timer to be visually shown on the screen. I'll try this code and it's work, but I don't know how to display timer on screen.

 Handler handler = new Handler();
 long waitingTime = 2 * 60 * 1000; // 2 min

 handler.postDelayed(new Runnable() {
 @Override
 public void run()
 {
     //Do something after 2 min         
 }
 }, waitingTime);

Looking for a CountDown timer? http://stackoverflow.com/questions/17839419/android-thread-for-a-timer — Raghunandan, Mar 27 '14 at 15:01

score 2 · Accepted Answer · answered Mar 27 '14 at 15:07

You need to have Handler called every second and update the UI during every pass. When you reach 2 mins you can cancel the handler.

Code should be like this:

final Handler handler = new Handler();
//class variable
count = 0;

handler.post(new Runnable() {
    @Override
    public void run() {
        updateCounter(count++);

        if(count < 120) {
            handler.postDelayed(this, 1000);
        }
    }
});

And function to update counter:

private void updateCounter(final int count) {
    runOnUiThread(new Runnable() {
        @Override
        public void run() {
            // you have the seconds passed
            // do what ever you want
        }
    });
}

how about incrementing the count – kiruwka Mar 27 '14 at 15:09 — kiruwka, Mar 27 '14 at 15:09

Siruk Viktor · Answer 2 · 2014-03-27T15:08:32.323

0

you need use runOnUiThread(Runnable action)

edited Mar 27 '14 at 15:08

answered Mar 27 '14 at 15:02

Siruk Viktor

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Call method after delay

2 Answers2