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copied!<p>YOU CAN TAKE HELP FROM THIS CODE</p> <p><strong>AudioRecorderActivity.java</strong></p> <pre><code>public class AudioRecorderActivity extends Activity { private static final String AUDIO_RECORDER_FILE_EXT_3GP = ".3gp"; private static final String AUDIO_RECORDER_FILE_EXT_MP4 = ".mp4"; private static final String AUDIO_RECORDER_FOLDER = "AudioRecorder"; private MediaRecorder recorder = null; private int currentFormat = 0; private int output_formats[] = { MediaRecorder.OutputFormat.MPEG_4, MediaRecorder.OutputFormat.THREE_GPP }; private String file_exts[] = { AUDIO_RECORDER_FILE_EXT_MP4, AUDIO_RECORDER_FILE_EXT_3GP }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); setButtonHandlers(); enableButtons(false); setFormatButtonCaption(); } private void setButtonHandlers() { ((Button) findViewById(R.id.btnStart)).setOnClickListener(btnClick); ((Button) findViewById(R.id.btnStop)).setOnClickListener(btnClick); ((Button) findViewById(R.id.btnFormat)).setOnClickListener(btnClick); } private void enableButton(int id, boolean isEnable) { ((Button) findViewById(id)).setEnabled(isEnable); } private void enableButtons(boolean isRecording) { enableButton(R.id.btnStart, !isRecording); enableButton(R.id.btnFormat, !isRecording); enableButton(R.id.btnStop, isRecording); } private void setFormatButtonCaption() { ((Button) findViewById(R.id.btnFormat)).setText(getString(R.string.audio_format) + " (" + file_exts[currentFormat] + ")"); } private String getFilename() { String filepath = Environment.getExternalStorageDirectory().getPath(); File file = new File(filepath, AUDIO_RECORDER_FOLDER); if (!file.exists()) { file.mkdirs(); } return (file.getAbsolutePath() + "/" + System.currentTimeMillis() + file_exts[currentFormat]); } private void startRecording() { recorder = new MediaRecorder(); recorder.setAudioSource(MediaRecorder.AudioSource.MIC); recorder.setOutputFormat(output_formats[currentFormat]); recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); recorder.setOutputFile(getFilename()); recorder.setOnErrorListener(errorListener); recorder.setOnInfoListener(infoListener); try { recorder.prepare(); recorder.start(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } private void stopRecording() { if (null != recorder) { recorder.stop(); recorder.reset(); recorder.release(); recorder = null; } } private void displayFormatDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(this); String formats[] = { "MPEG 4", "3GPP" }; builder.setTitle(getString(R.string.choose_format_title)).setSingleChoiceItems(formats, currentFormat, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { currentFormat = which; setFormatButtonCaption(); dialog.dismiss(); } }).show(); } private MediaRecorder.OnErrorListener errorListener = new MediaRecorder.OnErrorListener() {@Override public void onError(MediaRecorder mr, int what, int extra) { AppLog.logString("Error: " + what + ", " + extra); } }; private MediaRecorder.OnInfoListener infoListener = new MediaRecorder.OnInfoListener() {@Override public void onInfo(MediaRecorder mr, int what, int extra) { AppLog.logString("Warning: " + what + ", " + extra); } }; private View.OnClickListener btnClick = new View.OnClickListener() {@Override public void onClick(View v) { switch (v.getId()) { case R.id.btnStart: { AppLog.logString("Start Recording"); enableButtons(true); startRecording(); break; } case R.id.btnStop: { AppLog.logString("Start Recording"); enableButtons(false); stopRecording(); break; } case R.id.btnFormat: { displayFormatDialog(); break; } } } }; } </code></pre> <p><strong>AppLog.java</strong> </p> <pre><code>import android.util.Log; public class AppLog { private static final String APP_TAG = "AudioRecorder"; public static int logString(String message) { return Log.i(APP_TAG, message); } } </code></pre> <p><strong>main.xml</strong></p> <pre><code><?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:padding="20dip" > <ImageView android:layout_width="fill_parent" android:layout_height="wrap_content" android:scaleType="fitCenter" /> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <Button android:id="@+id/btnStart" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1.0" android:text="@string/start_recording" /> <Button android:id="@+id/btnStop" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1.0" android:text="@string/stop_recording" /> <Button android:id="@+id/btnFormat" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1.0" android:text="Format (mp4)" /> </LinearLayout> </LinearLayout> </code></pre>

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