我如何将计时器从一个片段传递到另一个片段？

Question

Suppose i have a timer which uses a TextView in Fragment A. And i want to use this timer in Fragment B. How would i do it? This is the code which is being used in Fragment A to set the timer...

private Runnable mUpdateTimeTask = new Runnable() {
    public void run() {
        long totalDuration = mp.getDuration();
        long currentDuration = mp.getCurrentPosition();

        // Displaying total duration time
        songTotalDurationLabel.setText(""+utils.milliSecondsToTimer(totalDuration));
        // Displaying current time
        songCurrentDurationLabel.setText(""+utils.milliSecondsToTimer(currentDuration));

        // Running this thread after 100 milliseconds
        mHandler.postDelayed(this, 100);
    }
}; 

Now i want to use the timer that's associated with the songCurrentDurationLabel TextView, in Fragment B as well.

How would i go about solving this?

Thanks!

Answer 1

Use timer in the host Activity and set/post results as callbacks. Android UI toolkit is not thread-safe - don't access the UI from outside the UI thread.

Check some gotchas .