Develop Reference

Write exif data to android video files

I am extracting metadata information (Exif infor) by using Id3 library in android, but I am getting null pointer exception and getting null in log Message it is a reason because value in src_set is null .I am not getting why it is returning null. my code is :
File src = new File(pathdata);
MusicMetadataSet src_set = null;
try {
src_set = new MyID3().read(src);
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} // read metadata
if (src_set == null) // perhaps no metadata
{
Log.i("NULL", "NULL");
}
else
{
try{
IMusicMetadata metadata = src_set.getSimplified();
String artist = metadata.getArtist();
String album = metadata.getAlbum();
String song_title = metadata.getSongTitle();
Number track_number = metadata.getTrackNumber();
Log.i("artist", artist);
Log.i("album", album);
}catch (Exception e) {
e.printStackTrace();
}
File dst = new File(pathdata);
MusicMetadata meta = new MusicMetadata("name");
meta.setAlbum("Chirag");
meta.setArtist("CS");
try {
new MyID3().write(src, dst, src_set, meta);
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ID3WriteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} // write updated metadata
}

Terminate Incoming Call Programmatically Android

I need to programmatically end an Incoming Call when a button from my App is being clicked.
If I use TelephonyService, it is working fine below 4.0 versions. But it is not working in 4.2.2 version.

TelephonyManager telephony = (TelephonyManager) srvs
.getSystemService(Context.TELEPHONY_SERVICE);
Class c;
final com.android.internal.telephony.ITelephony telephonyService;
try {
c = Class.forName("android.telephony.TelephonyManager");//telephony.getClass().getName());
Log.i("TelephonyClass Name", telephony.getClass().getName());
Method m = c.getDeclaredMethod("getITelephony");
m.setAccessible(true);
telephonyService = (ITelephony) m.invoke(telephony);
TimerTask task = new TimerTask() {
#Override
public void run() {
try {
if (telephonyService.isIdle()
|| telephonyService.isOffhook()
|| telephonyService.isRinging())
telephonyService.endCall();
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};
long delay = Integer.parseInt(cutofftime) * 1000;
new Timer().schedule(task, delay);
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

Converting string to data

I am getting a duration of my audio file , convert it to int , then convert int to string and then string to something like this 00:32 . Converted string is correct, but then is a problem with convert that string to data
Here is my code:
File file = new File(Environment.getExternalStorageDirectory()+"/MyImages/.audio1.wav");
MediaPlayer mp = new MediaPlayer();
FileInputStream fs = null;
FileDescriptor fd = null;
try {
fs = new FileInputStream(file);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
fd = fs.getFD();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
mp.setDataSource(fd);
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
mp.prepare();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
int length = mp.getDuration()/1000;
mp.release();
String audiotime = String.valueOf(length);
SimpleDateFormat sdf = new SimpleDateFormat("mmss");
try {
Date d = sdf.parse(audiotime);
textView1.setText(audiotime);
} catch (ParseException ex) {
}

Two things, most important, you use the original String as text for your TextView. You should do something like textView1.setText(d.toString());
Secondly, you should use "mm:ss" as your format, instead of "mmss".
Note you could also use the format function of SimpleDateFormat. This will return a StringBuffer, which might be more appropriate since you only need the String representation
source: android documentation

Android Emulator crashing when saving an reading files

I'm trying to save a custom object when I click a menu item. The problem is its crashing. Before we start, when I try to read that data in another activity, that also crashes. Here is my code where I'm trying to save the data:
Here's a pastebin link.
my write function in the menu
myInfo.setOnMenuItemClickListener(new OnMenuItemClickListener()
{
public boolean onMenuItemClick(MenuItem item)
{
Intent ourIntent = new Intent(Results.this, listTimes.class);
ourIntent.putExtra("Meeting", meetingObj);
try {
fos = new FileOutputStream(filename);
oos = new ObjectOutputStream(fos);
oos.writeObject(businesses.get(positionChecked));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally
{
try {
oos.close();
fos.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//startActivity(ourIntent);
return true;
}
// My read function
private void getData()
{
try {
fis = openFileInput(filename);
ois = new ObjectInputStream(fis);
business = (Business) ois.readObject();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (StreamCorruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally
{
try {
ois.close();
fis.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}

fetch photos from facebook album in android

m trying fetch all photos from perticular album from facebook in android , i am using facebook android sdk to do the task but the problem is , i don't know what url request is required to access the photos inside album ?

https://graph.facebook.com/ALBUM_ID/photos
If it's for a particular person then:
https://graph.facebook.com/me/albums/
And then choose the album id and then use the first call
EDIT
You will also need to give permission while creating Facebook object in the Permission String array also need to add user_photos to be able to load photos

Code Worked for Me.
I have two function - one is to get Album id and anther one is just retrieving all images from that particular album.
First use test() function and then use downloadpic().
public void test()
{
facebook.getAccessToken();
JSONArray albumss=null;
String response = null;
try {
response = facebook.request("me/albums");
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
JSONObject json = null;
try {
json = Util.parseJson(response);
} catch (FacebookError e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
JSONArray albums = null;
try {
albums = json.getJSONArray("data");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
for (int i =0; i < albums.length(); i++) {
JSONObject album = null;
try {
album = albums.getJSONObject(i);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
//Here I have selected Profile pic album.
if (album.getString("type").equalsIgnoreCase("profile")) {
// JSONArray al=null;
wallAlbumID = album.getString("id");
// Now you have album id in wallAlbumID(global varible).
Log.d("JSON", wallAlbumID);
break;
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Now use downloadpic():
void downloadpic( )
{
facebook.getAccessToken();
String response = null;
try {
response = facebook.request(wallAlbumID+"/photos");
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
JSONObject json = null;
try {
json = Util.parseJson(response);
} catch (FacebookError e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
JSONArray photos = null;
try {
photos = json.getJSONArray("data");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
for (int i =0; i < photos.length(); i++) {
JSONObject a = null;
try {
a = photos.getJSONObject(i);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String testing = null;
try {
testing = a.getString("source");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
\
URL value=null;
try {
value=new URL(testing);
//Now you have URL of that particular image use it in your way
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
break;
}
}