How To Implement Pause And Resume Method In Countdowntimer

Hi i am working countdowntimer concept. Here when i click start button the countdown will start. as well as stop also its working fine but i need to implement pause and resume meth

Solution 1:

The only way I see is to cancel timer when you call pause and create a new one when you want to resume it, something like this :

public class MainActivity extends ActionBarActivity implements OnClickListener {

 private MyCountDownTimer countDownTimer;
 private boolean timerHasStarted = false;
 private Button startB;
 public TextView text;
 private final long startTime = 30 * 1000;
 private final long interval = 1 * 1000;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    startB = (Button) this.findViewById(R.id.button);
    startB.setOnClickListener(this);

    text = (TextView) this.findViewById(R.id.timer);
    countDownTimer = new MyCountDownTimer(startTime, interval,text );
    // Set starting value
    text.setText(text.getText() + String.valueOf(startTime / 1000));
}

 public void onClick(View v) {
     if (!timerHasStarted) {
      // Start or resume counter
      countDownTimer = countDownTimer.resume();
      timerHasStarted = true;
      startB.setText("PAUSE");
      } else {
       // Pause counter
        countDownTimer.pause();
        timerHasStarted = false;
        startB.setText("RESTART");
      }
}

public class MyCountDownTimer extends CountDownTimer
{

    private long mRemainingTime = 0;
    private long mInterval = 0;
    private TextView mtvxToUpdate = null

    //  Use a textview reference to update text on each tick()
    public MyCountDownTimer(long startTime, long interval,TextView txv ) {
        super(startTime, interval);
        this.mInterval = interval;
        this.mRemainingTime = startTime;
        this.mtvxToUpdate = txv;
    }

    @Override
    public void onFinish() {
        mtvxToUpdate.setText("Time's up!");
    }

    @Override
    public void onTick(long millisUntilFinished) {
            mRemainingTime = millisUntilFinished;           
            mtvxToUpdate.setText("" + millisUntilFinished / 1000);
    }


    public void pause(){
        // Stop current timer 
        this.cancel();
    }

    public MyCountDownTimer resume(){
        // Create a counter with last saved data (just before pause)
        MyCountDownTimer newTimer = new MyCountDownTimer(mRemainingTime,mInterval,mtvxToUpdate);
        // Start this new timer that start where old one stop
        newTimer.start();
        // Return this new timer
        return newTimer;
    }
}
}