Handler postDelayed - print every second something

Question

I want to print the current second using a handler. I record a video for exactly 10 seconds and want to set the text of a TextView every second.

Recording 10 seconds works like that:

Handler handler = new Handler();
handler.postDelayed(new Runnable() {
    @Override
    public void run() {
           stopRecordingVideo();
    }
}, 11000);  // don't know why 11000 but it only works this way

After the 10 seconds the method stopRecordingVideo() gets executed. So how can I change the text every second of the TextView?

Answer 1

Working answer:

int t = 0;
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
    @Override
    public void run() {
        t++;
        textView.setText(getString(R.string.formatted_time, t));
        if(t<10) {
            handler.postDelayed(this, 1000);
        }
    }
}, 1000);

Where formatted_time is something like that:

<string android:name="formatted_time">%d seconds</string>

Answer 2

To print text every second, you can use CountDownTimer. But if you want to achieve this with try below code:

void startTime(){
    //Post handler after 1 second.
    handler.postDelayed(runnable, 1000);
}

int totalDelay=0;
Handler handler = new Handler();
Runnable runnable = new Runnable() {
    @Override
    public void run() {
        totalDelay++;   
        if(totalDelay<=10){
            //If total time is less then 10 second execute handler again after 1 second
            handler.postDelayed(runnable, 1000);
        }
        textView.setText(totalDelay+" Second");
    }
};