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POseek bar not working when playing song from sd card
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copied!<p>in my app i am trying to play a media player along with a seek bar. When i tried to play the song from a folder stored in my app it was working fine and the seek bar get moved.</p> <p>When i tried to play continuous songs from SD card it gets crashed and in logcat it showed the following error.</p> <pre><code>ERROR/sdcard play(2500): 02 - bird flu.mp3 ERROR/MediaPlayer(2500): Command PLAYER_SET_DATA_SOURCE completed with an error or info PVMFErrNotSupported ERROR/MediaPlayer(2500): error (1, -4) ERROR/MediaPlayer(2500): Attempt to call getDuration without a valid mediaplayer ERROR/MediaPlayer(2500): error (-38, 0) ERROR/sdcard play(2500): 03 Un Mela Aasadhaan.mp3 ERROR/MediaPlayer(2500): setDataSource called in state 0 ERROR/MediaPlayer(2500): prepareAsync called in state 0 ERROR/MediaPlayer(2500): Attempt to call getDuration without a valid mediaplayer ERROR/MediaPlayer(2500): error (-38, 0) </code></pre> <p>Following is my code</p> <pre><code> sv = (SurfaceView)findViewById(R.id.surfaceView1); // mediaPlayer =MediaPlayer.create(this, R.raw.b); init_mediaPlayer(); // sv.postDelayed(runnable,200); seek = (SeekBar)findViewById(R.id.seekBar1); seek.setMax(mediaPlayer.getDuration()); System.out.println("**** MEDIA PLAYER DURATION "+ mediaPlayer.getDuration()); play.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { mediaPlayer.start(); myHandler.post(runn); isPlaying = true; } }); pause.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { mediaPlayer.pause(); mediaPlayer.prepare(); } }); seek.setProgress(mediaPlayer.getCurrentPosition()); System.out.println("**** MEDIA PLAYER CURRENT DURATION "+ mediaPlayer.getCurrentPosition()); } private void init_mediaPlayer() { System.gc(); final String[] proj = { MediaStore.Audio.Media._ID,MediaStore.Audio.Media.DATA,MediaStore.Audio.Media.DISPLAY_NAME,MediaStore.Audio.Media.SIZE }; Log.e("media",""+proj); musiccursor = managedQuery(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,proj, null, null, null); Log.e("media1",""+musiccursor); count = musiccursor.getCount(); Log.e("media2",""+count); if(musiccursor!=null) { musiccursor.moveToFirst(); MediaPlayer mediaPlayer = new MediaPlayer(); do{ filename=musiccursor.getString(2); Log.e("sdcard play",filename); mediaPlayer.setDataSource(filename); mediaPlayer.prepare(); if(mediaPlayer.getCurrentPosition()==mediaPlayer.getDuration()) { end=musiccursor.moveToNext(); } } while(end); } </code></pre>

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