Hi, Did you set the below permission in AndroidManifest.xml
<uses-permission android:name="android.permission.RECORD_AUDIO" /> Regards, Manoj On Dec 10, 9:30 am, Lei <[EMAIL PROTECTED]> wrote: > Hi all, > I want to record the audio from the micphone. But I failed. > I reference the document. And the link > is:http://code.google.com/android/toolbox/apis/media.html > > I got the file. Its size is always 1666B. I played it but hear > nothing. > > Thanks in advance. > Regards, > Lei > > The code is : > > public class MediaRecorderDemo extends Activity { > > private static final String TAG = "MediaPlayerDemo"; > private MediaPlayer mMediaPlayer; > private String path; > > /** Called when the activity is first created. */ > > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > setContentView(R.layout.main); > > mPlay = (Button) findViewById(R.id.play); > mStart = (Button) findViewById(R.id.start); > mStop = (Button) findViewById(R.id.stop); > > mPlay.setOnClickListener(mPlayListener); > mStart.setOnClickListener(mStartListener); > mStop.setOnClickListener(mStopListener); > } > > @Override > protected void onDestroy() { > super.onDestroy(); > // TODO Auto-generated method stub > if (mMediaPlayer != null) { > mMediaPlayer.release(); > mMediaPlayer = null; > } > > } > > private OnClickListener mStopListener = new OnClickListener() { > public void onClick(View v) { > recorder.stop(); > recorder.release(); > } > }; > > private OnClickListener mPlayListener = new OnClickListener() { > public void onClick(View v) { > try { > path = "/sdcard/audio4"; > if (path == "") { > // Tell the user to provide an audio file URL. > Toast > .makeText( > MediaRecorderDemo.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(); > > } catch (Exception e) { > Log.e(TAG, "error: " + e.getMessage(), e); > } > > } > }; > > private OnClickListener mStartListener = new OnClickListener() { > public void onClick(View v) { > String path = "/sdcard/audio4"; > > //ContentResolver contentResolver; > recorder.setAudioSource(MediaRecorder.AudioSource.MIC); > recorder.setOutputFormat > (MediaRecorder.OutputFormat.THREE_GPP); > recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); > recorder.setOutputFile(path); > > recorder.prepare(); > recorder.start(); > } > }; > > private Button mPlay; > private Button mStop; > private Button mStart; > private MediaRecorder recorder = new MediaRecorder(); > > > > }- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
