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    <p>I have changed the program in this way, solution below.</p> <pre><code>package org.example.java; import android.media.MediaPlayer; import android.media.MediaPlayer.OnCompletionListener; import android.app.Activity; import android.os.Bundle; import android.os.Handler; import android.util.Log; import android.view.MotionEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnTouchListener; import android.widget.Button; import android.widget.SeekBar; public class Player extends Activity implements OnClickListener, OnTouchListener, OnCompletionListener, Runnable { private Button buttonPlayStop; private MediaPlayer mediaPlayer; private SeekBar seekBar; private final Handler handler = new Handler(); @Override public void onCreate(Bundle savedInstanceState) { Log.d("Player", "got to onCreate()"); super.onCreate(savedInstanceState); setContentView(R.layout.main); initViews(); if (savedInstanceState != null) { Log.d("Player", "got to savedInstanceState id not null"); mediaPlayer.seekTo(savedInstanceState.getInt("current_position")); seekBar.setProgress(savedInstanceState.getInt("current_position")); handler.post(this); } } @Override public void onSaveInstanceState(Bundle outState) { Log.d("Player", "got to onSaveInstanceState()"); super.onSaveInstanceState(outState); outState.putInt("current_position", mediaPlayer.getCurrentPosition()); handler.removeCallbacks(this); Log.d("Player", "got to End of onSaveInstanceState"); } private void initViews() { Log.d("Player", "got to initViews()"); buttonPlayStop = (Button) findViewById(R.id.ButtonPlayStop); buttonPlayStop.setOnClickListener(this); mediaPlayer = MediaPlayer.create(this, R.raw.testsong_20_sec); mediaPlayer.setOnCompletionListener(this); seekBar = (SeekBar) findViewById(R.id.SeekBar01); seekBar.setMax(mediaPlayer.getDuration()); seekBar.setOnTouchListener(this); Log.d("player", "got to End of initViews()"); } @Override public void onClick(View v) { Log.d("Player", "got to onClick"); switch (v.getId()) { case R.id.ButtonPlayStop: buttonClick(); break; default: break; } Log.d("Player", "got to End of onClick"); } private void buttonClick() { Log.d("Player", "got to buttonClick"); if (buttonPlayStop.getText() == getString(R.string.play_str)) { buttonPlayStop.setText(R.string.pause_str); try { mediaPlayer.start(); Log.d("Player", "got to before startPlayProgressUpdater in buttonClick"); startPlayProgressUpdater(); } catch (IllegalStateException e) { mediaPlayer.pause(); } } else { buttonPlayStop.setText(getString(R.string.play_str)); mediaPlayer.pause(); seekBar.setProgress(mediaPlayer.getCurrentPosition()); } Log.d("Player", "got to End of buttonClick"); } public void startPlayProgressUpdater() { Log.d("Player", "got to startPlayProgressUpdater()"); seekBar.setProgress(mediaPlayer.getCurrentPosition()); int pos = mediaPlayer.getCurrentPosition(); Log.d("Player", "Current position is " + Integer.toString(pos)); Log.d("Player", "got to After seekBar.setProgress"); if (mediaPlayer.isPlaying()) { Log.d("Player", "got to before handler.postDelayed"); handler.postDelayed(this, 1000); Log.d("Player", "got to after handler.postDelayed"); } else if (mediaPlayer.getCurrentPosition() &lt; mediaPlayer.getDuration()) { mediaPlayer.pause(); buttonPlayStop.setText(R.string.play_str); } Log.d("Player", "got to End of startPlayProgressUpdater()"); } @Override public boolean onTouch(View v, MotionEvent event) { Log.d("Player", "got to onTouch"); seekChange(v); return false; } private void seekChange(View v) { Log.d("Player", "got to seekChange"); if (mediaPlayer.isPlaying()) { SeekBar sb = (SeekBar) v; mediaPlayer.seekTo(sb.getProgress()); } } @Override public void run() { Log.d("Player", "got to run()"); startPlayProgressUpdater(); Log.d("Player", "got to after startPlayProgressUpdater in run()"); } @Override public void onCompletion(MediaPlayer mp) { mp.seekTo(0); } } </code></pre> <h1>Update</h1> <p>After all I find the solution, but it is very dirty :D</p> <pre><code>package org.example.java; import android.media.MediaPlayer; import android.media.MediaPlayer.OnCompletionListener; import android.app.Activity; import android.os.Bundle; import android.os.Handler; import android.util.Log; import android.view.MotionEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnTouchListener; import android.widget.Button; import android.widget.SeekBar; public class Player extends Activity implements OnClickListener, OnTouchListener, OnCompletionListener, Runnable { private Button buttonPlayStop; private MediaPlayer mediaPlayer; private SeekBar seekBar; private final Handler handler = new Handler(); @Override public void onCreate(Bundle savedInstanceState) { Log.d("Player", "got to onCreate()"); super.onCreate(savedInstanceState); setContentView(R.layout.main); initViews(); if (savedInstanceState != null) { Log.d("Player", "got to savedInstanceState id not null"); mediaPlayer.seekTo(savedInstanceState.getInt("current_position")); seekBar.setProgress(savedInstanceState.getInt("current_position")); mediaPlayer.start(); handler.post(this); } } @Override public void onSaveInstanceState(Bundle outState) { Log.d("Player", "got to onSaveInstanceState()"); super.onSaveInstanceState(outState); outState.putInt("current_position", mediaPlayer.getCurrentPosition()); handler.removeCallbacks(this); Log.d("Player", "got to End of onSaveInstanceState"); pauseMedia(); } private void initViews() { Log.d("Player", "got to initViews()"); buttonPlayStop = (Button) findViewById(R.id.ButtonPlayStop); buttonPlayStop.setOnClickListener(this); mediaPlayer = MediaPlayer.create(this, R.raw.testsong_20_sec); mediaPlayer.setOnCompletionListener(this); seekBar = (SeekBar) findViewById(R.id.SeekBar01); seekBar.setMax(mediaPlayer.getDuration()); seekBar.setOnTouchListener(this); Log.d("player", "got to End of initViews()"); } @Override public void onClick(View v) { Log.d("Player", "got to onClick"); switch (v.getId()) { case R.id.ButtonPlayStop: buttonClick(); break; default: break; } Log.d("Player", "got to End of onClick"); } private void buttonClick() { Log.d("Player", "got to buttonClick"); if (buttonPlayStop.getText() == getString(R.string.play_str)) { buttonPlayStop.setText(R.string.pause_str); try { mediaPlayer.start(); Log.d("Player", "got to before startPlayProgressUpdater in buttonClick"); startPlayProgressUpdater(); } catch (IllegalStateException e) { mediaPlayer.pause(); } } else { buttonPlayStop.setText(getString(R.string.play_str)); mediaPlayer.pause(); seekBar.setProgress(mediaPlayer.getCurrentPosition()); } Log.d("Player", "got to End of buttonClick"); } public void startPlayProgressUpdater() { Log.d("Player", "got to startPlayProgressUpdater()"); seekBar.setProgress(mediaPlayer.getCurrentPosition()); int pos = mediaPlayer.getCurrentPosition(); Log.d("Player", "Current position is " + Integer.toString(pos)); Log.d("Player", "got to After seekBar.setProgress"); if (mediaPlayer.isPlaying()) { Log.d("Player", "got to before handler.postDelayed"); handler.postDelayed(this, 1000); Log.d("Player", "got to after handler.postDelayed"); } else if (mediaPlayer.getCurrentPosition() &lt; mediaPlayer.getDuration()) { mediaPlayer.pause(); buttonPlayStop.setText(R.string.play_str); } Log.d("Player", "got to End of startPlayProgressUpdater()"); } @Override public boolean onTouch(View v, MotionEvent event) { Log.d("Player", "got to onTouch"); seekChange(v); return false; } private void seekChange(View v) { Log.d("Player", "got to seekChange"); if (mediaPlayer.isPlaying()) { SeekBar sb = (SeekBar) v; mediaPlayer.seekTo(sb.getProgress()); } } @Override public void run() { Log.d("Player", "got to run()"); startPlayProgressUpdater(); Log.d("Player", "got to after startPlayProgressUpdater in run()"); } @Override public void onCompletion(MediaPlayer mp) { mp.seekTo(0); } public void pauseMedia() { mediaPlayer.pause(); } </code></pre> <p>}</p> <h1>Update 2:</h1> <p>I have find another way: <a href="http://www.androidguys.com/2008/11/07/rotational-forces-part-two/" rel="nofollow">using getLastNonConfigurationInstance()</a> method.</p>
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    1. POHow to update SeekBar after android rotation?
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    1. USBrock Adams
    1. USMilad Khajavi
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