The file containing the source code shown below is located in the corresponding directory in <sdk>/samples/android-<version>/...
/*
* Copyright (C) 2009 The Android开源工程
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.apis.media;
import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;
import com.example.android.apis.R;
public class MediaPlayerDemo_Audio extends Activity {
private static final String TAG = "MediaPlayerDemo";
private MediaPlayer mMediaPlayer;
private static final String MEDIA = "media";
private static final int LOCAL_AUDIO = 1;
private static final int STREAM_AUDIO = 2;
private static final int RESOURCES_AUDIO = 3;
private static final int LOCAL_VIDEO = 4;
private static final int STREAM_VIDEO = 5;
private String path;
private TextView tx;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
tx = new TextView(this);
setContentView(tx);
Bundle extras = getIntent().getExtras();
playAudio(extras.getInt(MEDIA));
}
private void playAudio(Integer media) {
try {
switch (media) {
case LOCAL_AUDIO:
/**
* TODO: Set the path variable to a local audio file path.
*/
path = "";
if (path == "") {
// Tell the user to provide an audio file URL.
Toast
.makeText(
MediaPlayerDemo_Audio.this,
"Please edit MediaPlayer_Audio Activity, "
+ "and set the path variable to your audio file path."
+ " Your audio file must be stored on sdcard.",
Toast.LENGTH_LONG).show();
}
mMediaPlayer = new MediaPlayer();
mMediaPlayer.setDataSource(path);
mMediaPlayer.prepare();
mMediaPlayer.start();
break;
case RESOURCES_AUDIO:
/**
* TODO: Upload a audio file to res/raw folder and provide
* its resid in MediaPlayer.create() method.
*/
mMediaPlayer = MediaPlayer.create(this, R.raw.test_cbr);
mMediaPlayer.start();
}
tx.setText("Playing audio...");
} catch (Exception e) {
Log.e(TAG, "error: " + e.getMessage(), e);
}
}
@Override
protected void onDestroy() {
super.onDestroy();
// TODO Auto-generated method stub
if (mMediaPlayer != null) {
mMediaPlayer.release();
mMediaPlayer = null;
}
}
}