How to take an iPhone screenshot of entire view including parts off screen?

Question

I have an application that's laid out using an UITableView. The interface takes up more than just the screen, so there's some area that can be scrolled to. I would like some screenshots of the entire view (including the non-visible area) to use for documentation and soliciting feedback from my customer.

Is there programmatic way to get an image of the entire view? I don't think there would be a way on the device to do this, but maybe there is.

Answer 1

Just pasting some code I used in my app. It draws a view to an image (potentially scaling). Maybe you could programmaticaly scroll the table and stitch the images together in the end or something similar:

+ (UIImage *)captureView: (UIView *)view inSize: (CGSize)size
{
    UIGraphicsBeginImageContext(size);
    CGSize viewSize = view.frame.size;
    CGContextRef context = UIGraphicsGetCurrentContext();
    CGContextScaleCTM( context, size.width/viewSize.width, size.height/viewSize.height);

    [view.layer renderInContext: UIGraphicsGetCurrentContext()];

    UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return viewImage;
}

Hope it helps