Android 微信 amr,Android AMR格式录音和播放，仿微信

public class AudioRecordTest extends Activity {

private static final String LOG_TAG = "AudioRecordTest";

private static String mFileName = null;

private RecordButton mRecordButton = null;

private MediaRecorder mRecorder = null;

private PlayButton mPlayButton = null;

private MediaPlayer mPlayer = null;

/**

* 开始或停止保存录音

*/

private void onRecord(boolean start) {

if (start) {

startRecording();

} else {

stopRecording();

}

}

/**

* 播放或停止播放录音

*/

private void onPlay(boolean start) {

if (start) {

startPlaying();

} else {

stopPlaying();

}

}

private void startPlaying() {

mPlayer = new MediaPlayer();

try {

mPlayer.setDataSource(mFileName);

mPlayer.prepare();

mPlayer.start();

} catch (IOException e) {

Log.e(LOG_TAG, "prepare() failed");

}

}

private void stopPlaying() {

mPlayer.release();

mPlayer = null;

}

/**

* 开始录音

*/

private void startRecording() {

mRecorder = new MediaRecorder();

mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);

//RAW_AMR虽然被高版本废弃，但它兼容低版本还是可以用的

mRecorder.setOutputFormat(MediaRecorder.OutputFormat.RAW_AMR);

mRecorder.setOutputFile(mFileName);

mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

try {

mRecorder.prepare();

} catch (IOException e) {

Log.e(LOG_TAG, "prepare() failed");

}

mRecorder.start();

}

private void stopRecording() {

mRecorder.stop();

mRecorder.release();

mRecorder = null;

}

class RecordButton extends Button {

boolean mStartRecording = true;

OnClickListener clicker = new OnClickListener() {

public void onClick(View v) {

onRecord(mStartRecording);

if (mStartRecording) {

setText("Stop recording");

} else {

setText("Start recording");

}

mStartRecording = !mStartRecording;

}

};

public RecordButton(Context ctx) {

super(ctx);

setText("Start recording");

setOnClickListener(clicker);

}

}

class PlayButton extends Button {

boolean mStartPlaying = true;

OnClickListener clicker = new OnClickListener() {

public void onClick(View v) {

onPlay(mStartPlaying);

if (mStartPlaying) {

setText("Stop playing");

} else {

setText("Start playing");

}

mStartPlaying = !mStartPlaying;

}

};

public PlayButton(Context ctx) {

super(ctx);

setText("Start playing");

setOnClickListener(clicker);

}

}

public AudioRecordTest() {

mFileName = Environment.getExternalStorageDirectory().getAbsolutePath();

//在你本地SD卡根目录输出录音文件

mFileName += "/audioRecordtestMusic.amr";

}

@Override

public void onCreate(Bundle icicle) {

super.onCreate(icicle);

//保持屏幕唤醒，否则在录音过程当中锁屏容易被回收

getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

LinearLayout ll = new LinearLayout(this);

//录音按钮

mRecordButton = new RecordButton(this);

ll.addView(mRecordButton, new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT, 0));

//播放按钮

mPlayButton = new PlayButton(this);

ll.addView(mPlayButton, new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT, 0));

setContentView(ll);

}

@Override

public void onPause() {

super.onPause();

if (mRecorder != null) {

mRecorder.release();

mRecorder = null;

}

if (mPlayer != null) {

mPlayer.release();

mPlayer = null;

}

}

}

使用结果