Redraw an image for new size

ImageRedrawer.m

UIImage *image = [[UIImage alloc] initWith: something];
if (image.size.width != kAppIconSize || image.size.height != kAppIconSize) {
  CGSize itemSize = CGSizeMake(kAppIconSize, kAppIconSize);
  UIGraphicsBeginImageContextWithOptions(itemSize, NO, 0.0f);
  CGRect imageRect = CGRectMake(0.0, 0.0, itemSize.width, itemSize.height);
  [image drawInRect:imageRect];
  self.appRecord.appIcon = UIGraphicsGetImageFromCurrentImageContext();
  UIGraphicsEndImageContext();
}