Mediaplayer progress update to seekbar not smooth?
I am working on an app with recorder and player. I am using mediaplayer to play the recorded .wav file and meantime I want to update to a seekbar. Everything is working fine But my problem is mediaplayer progress updation to seekbar is not happening smoothly, If we are playig a small file, thumb of the seekbar jumps in seconds or between.
Can anyone help me with a workaround to make it smooth seeking of the progress in seekbar. My code is shown below.I am totlay stuck here.
mediaPlayerIntiate();
mediaPlayerSetSource();
mMediaPlayer.start();
task = new TimerTask() {
@Override
public void run() {
Graphbar.post(new Runnable() {
@Override
public void run() {
if (mMediaPlayer != null) {
if (playButtonState == MediaMode.PLAY) {
if (mMediaPlayer.isPlaying()) {
Graphbar.setProgress(mMediaPlayer
.getCurrentPosition());
mediaPlayerUpdateTimer(mMediaPlayer
.getCurrentPosition());
enableRewindandForward();
}
}
}
}
});
}
};
timer = new Timer();
timer.schedule(task, 0, 8);
mMediaPlayer.getCurrentPosition() Return current Time in millisecond and you are updating this to Seekbar which maximum capacity is 100. Make one formula to with length of file and 100. try this function
MediaPlayer mMediaPlayer = new MediaPlayer();
final SeekBar mSeelBar = new SeekBar(this);
final int duration = mMediaPlayer.getDuration();
final int amoungToupdate = duration / 100;
Timer mTimer = new Timer();
mTimer.schedule(new TimerTask() {
@Override
public void run() {
runOnUiThread(new Runnable() {
@Override
public void run() {
if (!(amoungToupdate * mSeelBar.getProgress() >= duration)) {
int p = mSeelBar.getProgress();
p += 1;
mSeelBar.setProgress(p);
}
}
});
};
}, amoungToupdate);
And this process should be called when Media player start playing. inside
mediaPlayer.setOnPreparedListener(new OnPreparedListener(){
@Override
public void onPrepared(MediaPlayer mp) {
**// call here**
});
Update
Update 125 times in seconds is not something you should do. Please increase your interval for updating SeekBar. I adding this after reading comments of NullPointer
player.prepare(); // or start()
ScheduledExecutorService service = Executors.newScheduledThreadPool(1);
service.scheduleWithFixedDelay(new Runnable()
{
@Override
public void run()
{
progressBar.setProgress(player.getCurrentPosition());
}
}, 1, 1, TimeUnit.MICROSECONDS);
Here is how i handle the seekbar;
mediaPlayer.setOnPreparedListener(new OnPreparedListener(){
@Override
public void onPrepared(MediaPlayer mp) {
mediaPlayer.start();
new SeekBarHandler().execute();
});
Now i have an Async Task called SeekBarHandler that handles the seekbar like this:
public class SeekBarHandler extends AsyncTask<Void, Void, Void> {
@Override
protected void onPostExecute(Void result) {
Log.d("##########Seek Bar Handler ################","###################Destroyed##################");
super.onPostExecute(result);
}
@Override
protected void onProgressUpdate(Void... values) {
seekBar.setProgress(mediaPlayer.getCurrentPosition());
super.onProgressUpdate(values);
}
@Override
protected Void doInBackground(Void... arg0) {
while(mediaPlayer.isPlaying()&&isViewOn==true) {
try {
Thread.sleep(200);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
onProgressUpdate();
}
return null;
}
}
Now in my onPause, i terminate the AsyncTask as it doesnt make sense to keep the thread going when the user is not able to see the seekbar
protected void onPause() {
isViewOn=false;
super.onPause();
}
And on onResume i start the AsyncTaskAgain like this
protected void onResume() {
isViewOn=true;
new SeekBarHandler().execute();
super.onResume();
}
As you can see i use a boolean flag isViewOn to check whether the view is on or not to handle the seekbar.
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