Question

I have got a UITableView, and I want to capture the visible portion of it, and put it into a UIImage. Any way of doing this?

EDIT

Self-answered below

Answer 1

Thanks for the replies. All of the answers would work with a UIView, but not with a UITableView – at least not when the table has scrolled. When scrolled, the captured image would appear black or transparent. I had tried similar solutions as the ones below before. I guess people assumed the answer was obvious, and that’s why I was down-voted – for being naughty enough to ask such an obvious question.

Anyway, the real solution is that you have to use the table’s contentOffset:

- (UIImage *) imageWithTableView:(UITableView *)tableView
{
    UIView *renderedView = tableView;
    CGPoint tableContentOffset = tableView.contentOffset;
    UIGraphicsBeginImageContextWithOptions(renderedView.bounds.size, renderedView.opaque, 0.0);
    CGContextRef contextRef = UIGraphicsGetCurrentContext();
    CGContextTranslateCTM(contextRef, 0, -tableContentOffset.y);
    [tableView.layer renderInContext:contextRef];
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return image;
}