android Audio recording/playback and progress bar info

AndroidManifest.xml

@@ -13,6 +13,7 @@
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.RECEIVE_SMS" />
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
       
     <application android:icon="@drawable/icon" android:label="@string/app_name"
     	android:debuggable="true">

assets/gap.js

@@ -306,7 +306,29 @@ var Device = {
 		get: function(url, file) {
 			window.DroidGap.httpGet(url, file);
 		}
+	},
+	
+	audio: {
+		startRecording: function(file) {
+			window.DroidGap.startRecordingAudio(file);
+		},
+		stopRecording: function() {
+			window.DroidGap.stopRecordingAudio();
+		},
+		startPlaying: function(file) {
+			window.DroidGap.startPlayingAudio(file);
+		},
+		stopPlaying: function() {
+			window.DroidGap.stopPlayingAudio();
+		},
+		getCurrentPosition: function() {
+			return window.DroidGap.getCurrentPositionAudio();
+		},
+		getDuration: function(file) {
+			return window.DroidGap.getDurationAudio(file);
+		}
 	}
+
 }
 
 function gotLocation(lat, lon) {

assets/index.html

@@ -105,10 +105,32 @@ function onReceiveSms(number, message)
 http = function(func)
 {
 	if (func == 'get') {
-		Device.http.get($('httpGetUrl').value, $('httpGetFile').value)	
+		Device.http.get($('httpGetUrl').value, $('httpGetFile').value);	
 	}
 }
 
+audio = function(func)
+{
+	if (func == 'startPlaying') {
+		Device.audio.startPlaying($('audioFile').value);
+	} else
+	if (func == 'stopPlaying') {
+		Device.audio.stopPlaying();
+	} else
+	if (func == 'startRecording') {
+		Device.audio.startRecording($('audioFile').value);
+	} else
+	if (func == 'stopRecording') {
+		Device.audio.stopRecording();
+	} else
+	if (func == 'getCurrentPosition') {
+		$('posdur').value = Device.audio.getCurrentPosition();
+	} else
+	if (func == 'getDuration') {
+		$('posdur').value = Device.audio.getDuration($('audioFile').value);
+	} 
+}
+
 
 
 addLoadEvent(initGap);
@@ -130,6 +152,7 @@ addLoadEvent(initGap);
         <li><a href="#vibration" onclick="Device.vibrate();">Vibration</a></li>
         <li><a href="#vibration" onclick="Device.playSound('on.mp3")">Play Sound</a></li>
         <li><a href="#photo" onclick="Device.Image.getFromPhotoLibrary();">Photo...</a></li>
+        <li><a href="#audio" onclick="audio();">Audio...</a></li>
         <li><a href="#notification" onclick="notification();">Notification...</a></li>
         <li><a href="#http" onclick="http();">HTTP...</a></li>
         <li><a href="http://phonegap.com/" target="_self">About</a></li>
@@ -289,4 +312,39 @@ addLoadEvent(initGap);
     	</fieldset>
     </div>
     
+    <div id="audio" title="audio" class="panel">
+    	<h2>Audio</h2>
+    	<fieldset>
+    		<div class="row">
+    		<label>AudioFile:</label>
+    		<input type=text name="audioFile" id="audioFile" size=60 maxlength=2048 value="/hullophonegap.mp3" style="width: 30ex"></input>
+    		</div>
+    	</fieldset>
+    	<fieldset>
+    		<div class="row">
+    		<a class="button leftButton" type="submit" onclick="audio('startRecording');">startRecording</a>
+    		<a class="button blueButton" type="submit" onclick="audio('stopRecording');">stopRecording</a>
+    		</div>
+    	</fieldset>
+    	<fieldset>
+    		<div class="row">
+    		<a class="button leftButton" type="submit" onclick="audio('startPlaying');">startPlaying</a>
+    		<a class="button blueButton" type="submit" onclick="audio('stopPlaying');">stopPlaying</a>
+    		</div>
+    	</fieldset>
+    	<fieldset>
+    		<div class="row">
+    		<label>info:</label>
+    		<input disabled="enabled" id="posdur" type="text" />
+    		</div>
+    	</fieldset>
+    	<fieldset>
+    		<div class="row">
+    		<a class="button leftButton" type="submit" onclick="audio('getDuration');">getDuration</a>
+    		<a class="button blueButton" type="submit" onclick="audio('getCurrentPosition');">getPosition</a>
+    		</div>
+    	</fieldset>
+    </div>
+    
+    
 <div id="preloader"></div></body></html>

src/com/nitobi/phonegap/AudioHandler.java

@@ -0,0 +1,102 @@
+package com.nitobi.phonegap;
+
+import java.io.File;
+
+import android.media.MediaPlayer;
+import android.media.MediaRecorder;
+import android.media.MediaPlayer.OnCompletionListener;
+
+public class AudioHandler implements OnCompletionListener {
+	private MediaRecorder recorder;
+	private boolean isRecording = false;
+	MediaPlayer mPlayer;
+	private boolean isPlaying = false;
+	private String recording;
+	private String saveFile;
+	
+	public AudioHandler(String file) {
+		this.recording = file;
+	}
+	
+	public void startRecording(String file){
+		if (!isRecording){
+			saveFile=file;
+			recorder = new MediaRecorder();
+			recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
+			recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
+			recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
+			recorder.setOutputFile(this.recording);
+			recorder.prepare();
+			isRecording = true;
+			recorder.start();
+		}
+	}
+	
+	private void moveFile(String file) {
+		/* this is just a hck that I will remove later */
+		File f = new File (this.recording);
+		f.renameTo(new File("/sdcard" + file));
+		System.out.println(this.recording);
+		System.out.println(file);
+	}
+	
+	public void stopRecording(){
+		try{
+			if((recorder != null)&&(isRecording))
+			{
+				isRecording = false;
+				recorder.stop();
+		        recorder.release(); 
+			}
+			moveFile(saveFile);
+		}catch (Exception e){e.printStackTrace();}
+	}	
+	
+	public void startPlaying(String file) {
+		if (isPlaying==false) {
+			try {
+				mPlayer = new MediaPlayer();
+				isPlaying=true;
+				mPlayer.setDataSource("/sdcard/" + file);
+				mPlayer.prepare();
+				mPlayer.setOnCompletionListener(this);
+				mPlayer.start();
+			} catch (Exception e) { e.printStackTrace(); }
+		}
+	} 
+	
+	public void stopPlaying() {
+		if (isPlaying) {
+			mPlayer.stop();
+			mPlayer.release();
+			isPlaying=false;
+		}
+	}
+	
+	public void onCompletion(MediaPlayer mPlayer) {
+		mPlayer.stop();
+		mPlayer.release();
+		isPlaying=false;
+    } 
+	
+	public long getCurrentPosition() {
+		if (isPlaying) 
+		{
+			return(mPlayer.getCurrentPosition());
+		} else { return(-1); }
+	}
+	
+	public long getDuration(String file) {
+		long duration = -2;
+		if (isPlaying==false) {
+			try {
+				mPlayer = new MediaPlayer();
+				mPlayer.setDataSource("/sdcard/" + file);
+				mPlayer.prepare();
+				duration = mPlayer.getDuration();
+				mPlayer.release();
+			} catch (Exception e) { e.printStackTrace(); return(-1); }
+			return duration;
+		} else { return -1; }
+	}
+}

src/com/nitobi/phonegap/PhoneGap.java

@@ -244,5 +244,46 @@ public class PhoneGap{
     	HttpHandler http = new HttpHandler();
     	http.get(url, file);
     }
+    
+    
+    /**
+     * AUDIO
+     * TODO: Basic functions done but needs more work on error handling and call backs, remove record hack
+     */
+    AudioHandler audio = new AudioHandler("/sdcard/tmprecording.mp3");
+    public void startRecordingAudio(String file)
+    {
+    	/* for this to work the recording needs to be specified in the constructor,
+    	 * a hack to get around this, I'm moving the recording after it's complete 
+    	 */
+    	audio.startRecording(file);
+    }
+    
+    public void stopRecordingAudio()
+    {
+    	audio.stopRecording();
+    }
+    
+    public void startPlayingAudio(String file)
+    {
+    	audio.startPlaying(file);
+    }
+    
+    public void stopPlayingAudio()
+    {
+    	audio.stopPlaying();
+    }
+    
+    public long getCurrentPositionAudio()
+    {
+    	System.out.println(audio.getCurrentPosition());
+    	return(audio.getCurrentPosition());
+    }
+    
+    public long getDurationAudio(String file)
+    {
+    	System.out.println(audio.getDuration(file));
+    	return(audio.getDuration(file));
+    }  
 }