wow! Thank you, mnj. It works well now.
And one more question, how can I know that where it needs a permission? Regards, Lei. On Dec 10, 12:36 pm, mnj <[EMAIL PROTECTED]> wrote: > 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 android-developers@googlegroups.com 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 -~----------~----~----~----~------~----~------~--~---
