title: facebook post photo on the friends wall
body: <p>I want to post on friends wall and encountered difficulties. </p>
  
  <p>First i uploaded the photo on my wall:</p>
  
  <pre><code>Request.Callback requestCallback = new Request.Callback() {
                              @Override
                              public void onCompleted(Response response) {
                                  if (response.getError() != null) {
                                      Log.d("exception","error");
                                  }
  
                                  Object graphResponse = response.getGraphObject().getProperty("id");
                                  if (graphResponse == null || !(graphResponse instanceof String)) {
                                      Log.d("exception","not upload image");
                                  } else {
                                      String fbPhotoAddress = "https://www.facebook.com/photo.php?fbid=" +graphResponse;
                                      Log.d("exception","fb="+fbPhotoAddress);
                                  }
                              }
                          };
  
                          try {
                              Request request = Request.newUploadPhotoRequest(Session.getActiveSession(), image, requestCallback);
                              request.executeAsync();
                          } catch (FileNotFoundException e) {
                              e.printStackTrace();
                          }
  </code></pre>
  
  <p>I don't know how this link (fbPhotoAddress) will be used. I read about feed dialog, it take photo post in 200x200px. </p>
  
  <p>How can i do this?</p>