1 //播放资源文件下和scdard下的音频
2 public class Main extends Activity implements OnClickListener,
3 OnCompletionListener {
4 private MediaPlayer mediaPlayer;
5 private Button btnPause;
6
7 @Override
8 public void onCreate(Bundle savedInstanceState) {
9 super.onCreate(savedInstanceState);
10 setContentView(R.layout.main);
11 // 播放资源文件的音频
12 Button btnStart1 = (Button) findViewById(R.id.btnStart1);
13 // 播放sdcard里边的音频文件
14 Button btnStart2 = (Button) findViewById(R.id.btnStart2);
15
16 Button btnStop = (Button) findViewById(R.id.btnStop);
17
18 btnPause = (Button) findViewById(R.id.btnPause);
19
20 btnStart1.setOnClickListener(this);
21 btnStart2.setOnClickListener(this);
22 btnStop.setOnClickListener(this);
23 btnPause.setOnClickListener(this);
24
25 }
26
27 // 播放完成
28 public void onCompletion(MediaPlayer mp) {
29 mp.release();
30 setTitle("资源已经释放");
31
32 }
33
34 public void onClick(View view) {
35 try {
36 switch (view.getId()) {
37 case R.id.btnStart1: // 播放音频资源
38 mediaPlayer = MediaPlayer.create(this, R.raw.music);
39 mediaPlayer.setOnCompletionListener(this);
40
41 mediaPlayer.start();
42
43 break;
44 case R.id.btnStart2:// 播放SD卡上的音频文件（/sdcard/music.mp3)
45 mediaPlayer = new MediaPlayer();
46 mediaPlayer.setDataSource("/sdcard/music.mp3");
47
48 mediaPlayer.prepare();
49 mediaPlayer.start();
50 break;
51
52 case R.id.btnStop:
53 if (mediaPlayer != null) {
54 if (mediaPlayer.isPlaying())
55 mediaPlayer.stop();
56 }
57 break;
58
59 case R.id.btnPause:
60 if (mediaPlayer != null) {
61 if ("播放".equals(btnPause.getText().toString())) {
62 mediaPlayer.start();
63 btnPause.setText("暂停");
64
65 } else if ("暂停".equals(btnPause.getText().toString())) {
66 mediaPlayer.pause();
67 btnPause.setText("播放");
68 }
69 }
70 break;
71 default:
72 break;
73 }
74 } catch (Exception e) {
75 // TODO: handle exception
76 }
77 }
78 }
1 //录制音频
2 public class Main extends Activity implements OnClickListener {
3 private File recordAudioFile;
4 private MediaRecorder mediaRecorder;
5 private MediaPlayer mediaPlayer;
6
7 @Override
8 public void onCreate(Bundle savedInstanceState) {
9 super.onCreate(savedInstanceState);
10 setContentView(R.layout.main);
11 // 录制，停止，播放，删除
12 Button btnRecord = (Button) findViewById(R.id.btnRecord);
13 Button btnStop = (Button) findViewById(R.id.btnStop);
14 Button btnPlay = (Button) findViewById(R.id.btnPlay);
15 Button btnDelete = (Button) findViewById(R.id.btnDelete);
16
17 btnRecord.setOnClickListener(this);
18 btnStop.setOnClickListener(this);
19 btnPlay.setOnClickListener(this);
20 btnDelete.setOnClickListener(this);
21
22 }
23
24 public void onClick(View view) {
25 try {
26 switch (view.getId()) {
27 case R.id.btnRecord: // 录制音频
28 recordAudioFile = File.createTempFile("record", ".amr");
29 mediaRecorder = new MediaRecorder();
30 // 指定音频采集源--麦克风
31 mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
32 // 指定录制格式 mpeg4
33 mediaRecorder
34 .setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
35 // 设置编码
36 mediaRecorder
37 .setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
38 // 录制生成文件
39 mediaRecorder.setOutputFile(recordAudioFile.getAbsolutePath());
40 mediaRecorder.prepare();
41 mediaRecorder.start();
42 Toast.makeText(this, "开始录音", Toast.LENGTH_LONG).show();
43
44 break;
45 // 停止
46 case R.id.btnStop:
47 if (mediaRecorder != null) {
48 mediaRecorder.stop();
49 mediaRecorder.release();
50 mediaRecorder = null;
51 Toast.makeText(this, "停止录音", Toast.LENGTH_LONG).show();
52 }
53 break;
54 // 播放
55 case R.id.btnPlay:
56 mediaPlayer = new MediaPlayer();
57 mediaPlayer.setDataSource(recordAudioFile.getAbsolutePath());
58 mediaPlayer.prepare();
59 mediaPlayer.start();
60 break;
61 // 删除
62 case R.id.btnDelete:
63 recordAudioFile.delete();
64 break;
65 default:
66 break;
67 }
68
69 } catch (Exception e) {
70 // TODO: handle exception
71 }
72 }
73 }
