Android how to post picture to friend's wall with facebook android sdk

Question

We can post to facebook friend\'s wall a text message, but how can we post an image, a picture to a friend\'s wall using Android Facebook SDK?

When I print out the wall

Answer 1

This is the method i use to post a picture to a wall, it posts a pic from a URL but you can change it to put a byte[] for the pic instead. The message appears above the picture and the caption appears to the right of the picture.

protected void postPicToWall(String userID, String msg, String caption, String picURL){
    try {
        if (isSession()) {
            String response = mFacebook.request((userID == null) ? "me" : userID);

            Bundle params = new Bundle();
            params.putString("message", msg);  
            params.putString("caption", caption);
            params.putString("picture", picURL);

            response = mFacebook.request(((userID == null) ? "me" : userID) + "/feed", params, "POST");       

            Log.d("Tests",response);
            if (response == null || response.equals("") || 
                    response.equals("false")) {
                Log.v("Error", "Blank response");
            }
        } else {
            // no logged in, so relogin
            Log.d(TAG, "sessionNOTValid, relogin");
            mFacebook.authorize(this, PERMS, new LoginDialogListener());
        }
    }catch(Exception e){
        e.printStackTrace();
    }
}

EDIT:

To post a byte[] rather than a url to a pic then replace the line

params.putString("picture", picURL); with

params.putByteArray("picture", getIntent().getExtras().getByteArray("data"));

where data is your array.