Screenshot of view controller

screenshot.m

- (UIImage *)screenshot
{
    CGRect rect = CGRectMake(0, 88.0, self.view.frame.size.width, self.view.frame.size.height - 88.0);
    UIGraphicsBeginImageContextWithOptions(rect.size, self.view.opaque, 0.0);
    
    CGContextRef context = UIGraphicsGetCurrentContext();
    CGContextTranslateCTM(context, -rect.origin.x, -rect.origin.y);
    [self.view.layer renderInContext:context];
    UIImage * img = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    return img;
}