gistfile1.m

        self.circleImageView.image = ^{
            
            UIGraphicsBeginImageContextWithOptions(size, NO, UIScreen.mainScreen.scale);
            
            [UIColor.ft_lightBlueColor set];
            [[UIBezierPath bezierPathWithOvalInRect:CGRectInset(self.circleImageView.bounds, 1.0f, 1.0f)] stroke];
            
            UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
            UIGraphicsEndImageContext();
            
            return image;
        }();