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android - 如何使用设备中的默认播放器在 Android 中播放 3gp 音频文件?

转载 作者:太空宇宙 更新时间:2023-11-03 11:35:58 26 4
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我需要播放存储在我的 SD 卡位置的 3gp 音频文件,以便在我的 HTC 设备中使用我的默认媒体播放器播放它。

代码:

 public class AudioRecorder extends Activity {

private static final String CAMERA_STATUS = "camera_upload";
private static final String GALLERY_STATUS = "gallery_upload";
MediaRecorder recorder = new MediaRecorder();
static String path = "audio-android.3gp";
Button startRecording;
Button stopRecording;
Button save;
Button palyAudio;
private Context context;


private String sanitizePath(String path) {
if (!path.startsWith("/")) {
path = "/" + path;
}
if (!path.contains(".")) {
path += ".3gp";
}
return Environment.getExternalStorageDirectory().getAbsolutePath()
+ path;
}



@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);

setContentView(R.layout.audio_recording);
context = this;
/**
* Creates a new audio recording at the given path (relative to root of
* SD card).
*/

this.path = sanitizePath(path);

startRecording = (Button) findViewById(R.id.startRecording);
stopRecording = (Button) findViewById(R.id.stopRecording);
save = (Button) findViewById(R.id.resetRecording);
palyAudio = (Button) findViewById(R.id.playRecorded);

startRecording.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View arg0) {
try {
stopRecording.setVisibility(View.VISIBLE);
startRecording.setVisibility(View.GONE);
start();

} catch (IOException e) {
e.printStackTrace();
}

}
});

stopRecording.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View arg0) {
stopRecording.setVisibility(View.GONE);
startRecording.setVisibility(View.VISIBLE);
try {
stop();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}
});


palyAudio.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View arg0) {
playAudio();
//startMediaPlayer();

}

});

}

/**
*
* play the recorded audio
*
*/
public void playAudio() {
try {

Intent intent = new Intent(android.content.Intent.ACTION_VIEW);
Uri data = Uri.parse(path);
// Intent intent = new Intent(Intent.ACTION_VIEW, data);
intent.setDataAndType(data, "audio/mp3");
startActivity(intent);
} catch (ActivityNotFoundException e) {
e.printStackTrace();
} catch (Exception e) {
// TODO: handle exception
}
}


/**
* Starts a new recording.
*/
public void start() throws IOException {
recorder = new MediaRecorder();

String state = android.os.Environment.getExternalStorageState();

if (!state.equals(android.os.Environment.MEDIA_MOUNTED)) {
throw new IOException("SD Card is not mounted. It is " + state
+ ".");
}

// make sure the directory we plan to store the recording in exists
File directory = new File(path).getParentFile();
System.out.println("start() directory > " + directory);
if (!directory.exists() && !directory.mkdirs()) {
throw new IOException("Path to file could not be created.");
}

recorder.setAudioSource(MediaRecorder.AudioSource.MIC); recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); recorder.setOutputFile(path);
recorder.prepare();
recorder.start();

}

/**
* Stops a recording that has been previously started.
*/
public void stop() throws IOException {
recorder.stop(); // Stops recording.
recorder.release(); // Now the object cannot be reused

}


}

最佳答案

public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(t);
path = "/sdcard/sample.mp3";
mMediaPlayer = new MediaPlayer();
mMediaPlayer.setDataSource(path);
mMediaPlayer.prepare();
mMediaPlayer.start();
}

关于android - 如何使用设备中的默认播放器在 Android 中播放 3gp 音频文件?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/5882563/

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