Hello everyone,
I have an application with 2 buttons. Click button button_testWav will
play wav audio, and click button button_quit will call method
quit(View view) to exit the application (this is defined in layout XML
file). One interesting thing is after I click button_testWav, audio
starts playing. Then I press key "back" on my Droid X, audio still
plays in background.
I would like to know how to control MediaPlayer again after I launch
the application later, so that I won't have too many copies open?
Thanks!
Below is the test code:
package com.MediaPlayerTest;
import java.io.IOException;
import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class MediaPlayerTest extends Activity
{
private static final String TAG = "MediaPlayerTest";
private static MediaPlayer mp;
private void playMusic(String pathToFile)
{
mp.reset();
try
{
mp.setDataSource(pathToFile);
} catch (IllegalArgumentException e)
{
Log.d(TAG, "IllegalArgumentException");
e.printStackTrace();
} catch (IllegalStateException e)
{
Log.d(TAG, "IllegalStateException in setDataSource");
e.printStackTrace();
} catch (IOException e)
{
Log.d(TAG, "IOException in setDataSource");
e.printStackTrace();
}
try
{
mp.prepare();
} catch (IllegalStateException e)
{
Log.d(TAG, "IllegalStateException in prepare");
e.printStackTrace();
} catch (IOException e)
{
Log.d(TAG, "IOException in prepare");
Toast.makeText(this, "Couldn't open audio file.",
Toast.LENGTH_LONG).show();
e.printStackTrace();
}
mp.start();
}
public void quit(View view)
{
mp.stop();
mp.release();
this.finish();
}
@Override
public void onCreate(Bundle savedInstanceState)
{
Log.d(TAG, "onCreate");
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mp = new MediaPlayer();
final Button button_testWav = (Button)
findViewById(R.id.button_testWav);
button_testWav.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
playMusic("/sdcard/res/test.wav");
}
});
}
}
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