Thanks a lot!
On Dec 10, 1:20 pm, mnj <[EMAIL PROTECTED]> wrote:
> Hi,
>
> Check the link http://code.google.com/android/devel/security.html
> andhttp://code.google.com/android/reference/android/Manifest.permission....
>
> "A central design point of the Android security architecture is that
> no application, by default, has permission to perform any operations
> that would adversely impact other applications, the operating system,
> or the user. This includes reading or writing the user's private data
> (such as contacts or e-mails), reading or writing another
> application's files, performing network access, keeping the device
> awake, etc"
>
> Regards,
> Manoj
>
> On Dec 10, 10:07 am, Lei <[EMAIL PROTECTED]> wrote:
>
> > 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 -- Hide quoted text -
>
> > - Show quoted text -
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