Post Image to Facebook with custom message

Question

I am using the next code to post an image to the user's Facebook wall:

private void postImageToWall(Session session) {

    // Bitmap image = BitmapFactory.decodeFile(Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + "demo.jpg");
    Bitmap image = BitmapFactory.decodeResource(getResources(), R.drawable.frame_with_woman);
    Bundle parameters = new Bundle();
    parameters.putParcelable("source", image);
    parameters.putString("message", "my message for the page");
    Request request = new Request(Session.getActiveSession(), "me/photos", parameters, HttpMethod.POST, new Request.Callback() {
        @Override
        public void onCompleted(Response response) {
            LogService.log(TAG, "Successfully posted");
        }
    });
    request.executeAsync();

}

How can I make it so a "default" Facebook popup dialog appears (you know the ones, e.g. this one) thus letting the user enter the caption of the image, and not set a hard-coded one, like I am in the code above.

parameters.putString("message", "my message for the page");

Answer 1

User this tag for description posting,

postParams.putString("caption", mes);

This is my complete code for sharing image with text in facebook wall,

private void facebookImagePosting(String imageUrl, String mes) {
    Bundle postParams = new Bundle();
    postParams.putString("access_token", accessToken);

    byte[] data = null;

    URL aURL;
    BufferedInputStream bis = null;
    try {
        aURL = new URL(imageUrl);
        URLConnection conn = aURL.openConnection();
        conn.connect();
        InputStream is = conn.getInputStream();
        bis = new BufferedInputStream(is, 8192);

    } catch (Exception e) {

        e.printStackTrace();
    }

    Bitmap bi = BitmapFactory.decodeStream(bis);

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bi.compress(Bitmap.CompressFormat.JPEG, 100, baos);
    data = baos.toByteArray();
    postParams.putByteArray("picture", data);
    postParams.putString("caption", mes);
    Request.Callback callback = new Request.Callback() {
        public void onCompleted(Response response) {
            FacebookRequestError error = response.getError();
            if (error != null) {
                Log.e("Facebook Error Message", error.getErrorMessage());
            } else {
            Log.e("Success Message", "Decision posted successfully!");

            }
        }
    };
    Request request = new Request(Session.getActiveSession(), "me/photos",
            postParams, HttpMethod.POST, callback);
    RequestAsyncTask task = new RequestAsyncTask(request);
    task.execute();
}

Answer 2

Try using following method for posting message

void PostFb()
      {
        Bundle parameters = new Bundle();
        parameters.putString("name", getResources().getString(R.string.app_name));
        parameters.putString("link", "http://www.youtube.com");//Put Image URL Here


        facebook.dialog(this, "stream.publish", parameters,
                new DialogListener() {

                    public void onFacebookError(FacebookError e) {
                        e.printStackTrace();
                    }

                    public void onError(DialogError e) {
                        // TODO Auto-generated method stub
                        e.printStackTrace();

                    }

                    public void onComplete(Bundle values) {

                    }

                    public void onCancel() {

                    }
                });
    }

let me know if it works.Because it shows preview of any url you enter at this line parameters.putString("link", "http://www.youtube.com");

Before doing this declare below parameters

Declare this above class name private Facebook facebook;

& Do initialization like this at onCreate method

facebook = new Facebook(APP_ID);
mAsyncRunner = new AsyncFacebookRunner(facebook);