How to take screenshot of UIScrollView visible area?

Question

How do I take a 1:1 screenshot of UIScrollView visible area? The content may be larger or smaller than UIScrollView bounds as well as half-hidden (I\'ve implemented custom scrol

Answer 1

Jeffery Sun has the right answer. Just put your scroll view inside another view. Get container view to render in context. done.

In the code below, cropView contains the scroll view to be captured. The solution is really just that simple.

As I understand the question and why I found this page, the whole content of the scroll view isn't wanted - just the visible portion.

func captureCrop() -> UIImage {
    UIGraphicsBeginImageContextWithOptions(self.cropView.frame.size, true, 0.0)
    self.cropView.layer.renderInContext(UIGraphicsGetCurrentContext())
    let image = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext()
    return image;
}