Android twitter tweet with image [duplicate]

Question

Possible Duplicate:
Can we post image on twitter using twitter API in Android?

I am working in an android application and I want to tweet a message and a picture to twitter. I am able to tweet only tweets to twitter by the code :

String token = prefs.getString(OAuth.OAUTH_TOKEN, "");
String secret = prefs.getString(OAuth.OAUTH_TOKEN_SECRET, "");

AccessToken a = new AccessToken(token, secret);
Twitter twitter = new TwitterFactory().getInstance();
twitter.setOAuthConsumer(Constants.CONSUMER_KEY,
        Constants.CONSUMER_SECRET);
twitter.setOAuthAccessToken(a);
try {

**twitter.updateStatus("New tweet");**
        twitter.//Which property of twitter should I use to tweet an image and  //message
} catch (TwitterException e) {
    // TODO Auto-generated catch block
    Log.e("Errorssssssssssssss", e.toString());
}

How do I include an image as well?