android多媒体部分学习笔记六----音频录制 mediaRecorder

/**

*

* 使用意图捕获音频

*

* @time 下午12:58:03

* @author retacn yue

* @Email zhenhuayue@sina.com

*/

public class MediaRecorderDemoActivity extends Activity implements OnCompletionListener, OnClickListener {

private static final int RECORD_REQUEST = 0;

private Button btn_play, btn_record;

private Uri audioFileUri;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

findView();

}

/**

* 实例化控件

*/

private void findView() {

btn_record = (Button) this.findViewById(R.id.btn_record_audio);

btn_record.setOnClickListener(this);

btn_play = (Button) this.findViewById(R.id.btn_play_audio);

btn_play.setOnClickListener(this);

btn_play.setEnabled(false);

}

@Override

public void onClick(View v) {

if (v == btn_record) {

Intent intent = new Intent(MediaStore.Audio.Media.RECORD_SOUND_ACTION);

startActivityForResult(intent, RECORD_REQUEST);

} else if (v == btn_play) {

MediaPlayer mediaPlayer = MediaPlayer.create(this, audioFileUri);

mediaPlayer.setOnCompletionListener(this);

mediaPlayer.start();

btn_play.setEnabled(false);

}

}

@Override

public void onCompletion(MediaPlayer mp) {

btn_play.setEnabled(true);

}

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

if (resultCode == RESULT_OK) {

audioFileUri = data.getData();

btn_play.setEnabled(true);

}

}

}