package app.test;
import java.io.File;
import android.app.Activity;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaRecorder;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class Test extends Activity implements OnClickListener,
OnCompletionListener {
TextView statusTextView, amplitudeTextView;
Button startRecording, stopRecording, playRecording, finishButton;
MediaRecorder recorder;
MediaPlayer player;
File audioFile;
RecordAmplitude recordAmplitude;
boolean isRecording = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
statusTextView = (TextView) this.findViewById(R.id.StatusTextView);
statusTextView.setText("Ready");
amplitudeTextView = (TextView) this.findViewById(R.id.AmplitudeTextView);
amplitudeTextView.setText("0");
stopRecording = (Button) this.findViewById(R.id.StopRecording);
startRecording = (Button) this.findViewById(R.id.StartRecording);
playRecording = (Button) this.findViewById(R.id.PlayRecording);
finishButton = (Button) this.findViewById(R.id.FinishButton);
startRecording.setOnClickListener(this);
stopRecording.setOnClickListener(this);
playRecording.setOnClickListener(this);
finishButton.setOnClickListener(this);
stopRecording.setEnabled(false);
playRecording.setEnabled(false);
}
public void onClick(View v) {
if (v == finishButton) {
finish();
} else if (v == stopRecording) {
isRecording = false;
recordAmplitude.cancel(true);
recorder.stop();
recorder.release();
player = new MediaPlayer();
player.setOnCompletionListener(this);
try {
player.setDataSource(audioFile.getAbsolutePath());
player.prepare();
} catch (Exception e) {
throw new RuntimeException("IOException in MediaPlayer.prepare", e);
}
statusTextView.setText("Ready to Play");
playRecording.setEnabled(true);
stopRecording.setEnabled(false);
startRecording.setEnabled(true);
} else if (v == startRecording) {
recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
File path = new File(Environment.getExternalStorageDirectory().getAbsolutePath()+ "/files/");
path.mkdirs();
try {
audioFile = File.createTempFile("recording", ".3gp", path);
recorder.setOutputFile(audioFile.getAbsolutePath());
recorder.prepare();
} catch (Exception e) {
throw new RuntimeException(
"IOException on MediaRecorder.prepare", e);
}
recorder.start();
isRecording = true;
recordAmplitude = new RecordAmplitude();
recordAmplitude.execute();
statusTextView.setText("Recording");
playRecording.setEnabled(false);
stopRecording.setEnabled(true);
startRecording.setEnabled(false);
} else if (v == playRecording) {
player.start();
statusTextView.setText("Playing");
playRecording.setEnabled(false);
stopRecording.setEnabled(false);
startRecording.setEnabled(false);
}
}
public void onCompletion(MediaPlayer mp) {
playRecording.setEnabled(true);
stopRecording.setEnabled(false);
startRecording.setEnabled(true);
statusTextView.setText("Ready");
}
private class RecordAmplitude extends AsyncTask {
@Override
protected Void doInBackground(Void... params) {
while (isRecording) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
publishProgress(recorder.getMaxAmplitude());
}
return null;
}
protected void onProgressUpdate(Integer... progress) {
amplitudeTextView.setText(progress[0].toString());
}
}
}
//main.xml
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
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