Creating Timer by using Thread

Schedule a countdown until a time in the future, with regular notifications on intervals along the way.We can start countdown by using creating own Thread or By using CountDownTimer class of android.os package.

Here an example of showing a 1-second countdown in The text fields by the Thread.

 public void countDownStart(final String endingDate) {
        linearLayout1 = (LinearLayout) findViewById(R.id.ll1);
        linearLayout2 = (LinearLayout) findViewById(R.id.ll2);
        tvDay = (TextView) findViewById(R.id.txtTimerDay);
        tvHour = (TextView) findViewById(R.id.txtTimerHour);
        tvMinute = (TextView) findViewById(R.id.txtTimerMinute);
        tvSecond = (TextView) findViewById(R.id.txtTimerSecond);
        tvEvent = (TextView) findViewById(R.id.tvevent);
        handler = new Handler();
        runnable = new Runnable() {
            @Override
            public void run() {
                handler.postDelayed(this, 1000);
                try {
                    SimpleDateFormat dateFormat = new SimpleDateFormat("MM/dd/yyyy");
                    // Here Set your Event Date
                    Date eventDate = dateFormat.parse(endingDate);
                    Date currentDate = new Date();
                    if (!currentDate.after(eventDate)) {
                        long diff = eventDate.getTime()
                                - currentDate.getTime();
                        long days = diff / (24 * 60 * 60 * 1000);
                        diff -= days * (24 * 60 * 60 * 1000);
                        long hours = diff / (60 * 60 * 1000);
                        diff -= hours * (60 * 60 * 1000);
                        long minutes = diff / (60 * 1000);
                        diff -= minutes * (60 * 1000);
                        long seconds = diff / 1000;
                        tvDay.setText("" + String.format("%02d", days));
                        tvHour.setText("" + String.format("%02d", hours));
                        tvMinute.setText("" + String.format("%02d", minutes));
                        tvSecond.setText("" + String.format("%02d", seconds));
                    } else {
                        linearLayout1.setVisibility(View.VISIBLE);
                        linearLayout2.setVisibility(View.GONE);
                        tvEvent.setText("Android Event Start");
                        handler.removeCallbacks(runnable);
                        // handler.removeMessages(0);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        };
        handler.postDelayed(runnable, 0);
    }

public void countDownStart(final String endingDate) {

linearLayout1 = (LinearLayout) findViewById(R.id.ll1);

linearLayout2 = (LinearLayout) findViewById(R.id.ll2);

tvDay = (TextView) findViewById(R.id.txtTimerDay);

tvHour = (TextView) findViewById(R.id.txtTimerHour);

tvMinute = (TextView) findViewById(R.id.txtTimerMinute);

tvSecond = (TextView) findViewById(R.id.txtTimerSecond);

tvEvent = (TextView) findViewById(R.id.tvevent);

handler = new Handler();

runnable = new Runnable() {

@Override

public void run() {

handler.postDelayed(this, 1000);

try {

SimpleDateFormat dateFormat = new SimpleDateFormat("MM/dd/yyyy");

// Here Set your Event Date

Date eventDate = dateFormat.parse(endingDate);

Date currentDate = new Date();

if (!currentDate.after(eventDate)) {

long diff = eventDate.getTime()

- currentDate.getTime();

long days = diff / (24 * 60 * 60 * 1000);

diff -= days * (24 * 60 * 60 * 1000);

long hours = diff / (60 * 60 * 1000);

diff -= hours * (60 * 60 * 1000);

long minutes = diff / (60 * 1000);

diff -= minutes * (60 * 1000);

long seconds = diff / 1000;

tvDay.setText("" + String.format("%02d", days));

tvHour.setText("" + String.format("%02d", hours));

tvMinute.setText("" + String.format("%02d", minutes));

tvSecond.setText("" + String.format("%02d", seconds));

} else {

linearLayout1.setVisibility(View.VISIBLE);

linearLayout2.setVisibility(View.GONE);

tvEvent.setText("Android Event Start");

handler.removeCallbacks(runnable);

// handler.removeMessages(0);

}

} catch (Exception e) {

e.printStackTrace();

}

};

handler.postDelayed(runnable, 0);

}

Where Handler is android.os package class.

Ref. http://stackoverflow.com/questions/10032003/how-to-make-a-countdown-timer-in-android

ashwini gupta 22 April 2017

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Creating Timer by using Thread

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