将SeekBar连接到MediaPlayer无法正常工作

Question

I've been following a tutorial to implement a SeekBar to my app but it isn't working. Here's how I'm trying to do it.

public void run(){
    int currentPosition = 0;
    int total = player.getDuration();
    sBar.setMax(total);

    while (player.isPlaying()) {
        try {
            Thread.sleep(1000);
            currentPosition = player.getCurrentPosition();
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        sBar.setProgress(currentPosition);
    }
}

sBar is the SeekBar which I declared as a global variable.

Now the problem is that there was nowhere mentioned in the tutorial where to then call this run method? I tried calling it right after the MediaPlayer is started but it isn't working.

Answer 1

This is obviously meant to be put in a Thread object- its an infinite loop that sleeps for a second at a time. It can't go on the UI thread or it will freeze your app.

Answer 2

I made a completely different approach to this and it worked. Here's how I've done it now:

Runnable run = new Runnable(){

    @Override
    public void run() {
        seekBarUpdate();
    }

};

public void seekBarUpdate(){
    sBar.setMax(player.getDuration());
    sBar.setProgress(player.getCurrentPosition());
    seekHandler.postDelayed(run, 25);
}