gistfile1.txt

            [message.image getDataInBackgroundWithBlock:^(NSData *data, NSError *error) {
                image = [UIImage imageWithData:data];
                dispatch_async(dispatch_get_main_queue(), ^{
                    cell.photoImageView.image = image; //this not
                    [self.cameraButton setBackgroundImage:image forState:UIControlStateNormal]; //this changes
                });

            }];
            
            
            /*!
 Asynchronously gets the data from cache if available or fetches its contents
 from the Parse servers. Executes the given block.
 @param block The block should have the following argument signature: (NSData *result, NSError *error)
 */
- (void)getDataInBackgroundWithBlock:(PFDataResultBlock)block;