I need to display two timers on my app, I have two approaches, one is
to implement the displays as TextView and then use java.util.Timer and
TimerTask to update its text, however, the text doesn't redraw itself
after update.
The other approach is to use DigitalClock, but I can't find a way to
directly start/stop the clock. see code below.
please help. thanks!
class DisplayTimerTask extends TimerTask{
DateFormat dateFormat =new SimpleDateFormat("HH:mm:ss MM/dd/
yyyy");
private TextView display;
public DisplayTimerTask(TextView display){
this.display=display;
}
public void run() {
String time = dateFormat.format(new Date());
display.setText(time);
display.invalidate();
System.err.println("set time to "+time);
}
}
protected void stopTimer() {
Button stopButton = getStopButton();
stopButton.setEnabled(false);
getStartButton().setEnabled(true);
if(stopDisplayTimer!=null)stopDisplayTimer.cancel();
stopDisplayTimer = new Timer();
stopDisplayTimer.schedule(new
DisplayTimerTask(getStopTimeLabel()),
0, 500);
/*
DigitalClock clock=(DigitalClock)findViewById(R.id.clock);
clock.setEnabled(false);
*/
}
protected void startTimer() {
Button startButton=getStartButton();
startButton.setEnabled(false);
getStopButton().setEnabled(true);
if(startDisplayTimer!=null)startDisplayTimer.cancel();
startDisplayTimer = new Timer();
startDisplayTimer.schedule(new
DisplayTimerTask(getStartTimeLabel
()), 0, 500);
/* DigitalClock clock=(DigitalClock)findViewById(R.id.clock);
clock.setEnabled(true);
*/
}
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