UITableView Screenshort

- (UIImage *)screenshort{
    UIImage* viewImage = nil;
    
    UIGraphicsBeginImageContextWithOptions(self.contentSize, self.opaque, 0.0);
    {
        CGPoint savedContentOffset = self.contentOffset;
        CGRect savedFrame = self.frame;
        
        UIView *tempView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.contentSize.width, self.contentSize.height)];
        UIView *tempSuperView = self.superview;
        
        [self removeFromSuperview];
        [tempView addSubview:self];
        
        self.contentOffset = CGPointZero;
        self.frame = CGRectMake(0, 0, self.contentSize.width, self.contentSize.height);
        [self.layer renderInContext: UIGraphicsGetCurrentContext()];
        
        viewImage = UIGraphicsGetImageFromCurrentImageContext();
        
        [self removeFromSuperview];
        
        [tempSuperView addSubview:self];
        self.contentOffset = savedContentOffset;
        self.frame = savedFrame;
    }
    UIGraphicsEndImageContext();
    
    return viewImage;
}