Make snapshot of all UIScrollView content

Question

i'm trying to take the snapshot of the all content of a UIScrollView, i have found some code here on SO, and this code below working on a half, because the snapshot if of the all uiscrollview, but the background is black, this is the code:

UIImage* image = nil;

UIGraphicsBeginImageContextWithOptions(_scrollView.contentSize,YES,0.0f);
{
    CGPoint savedContentOffset = _scrollView.contentOffset;
    CGRect savedFrame = _scrollView.frame;

    _scrollView.contentOffset = CGPointZero;
    _scrollView.frame = CGRectMake(0, 0, _scrollView.contentSize.width, _scrollView.contentSize.height);

    [_scrollView.layer renderInContext: UIGraphicsGetCurrentContext()];
    image = UIGraphicsGetImageFromCurrentImageContext();

    _scrollView.contentOffset = savedContentOffset;
    _scrollView.frame = savedFrame;

}
UIGraphicsEndImageContext();

how i can have also the background in the snapshot?

score 0 · Accepted Answer · answered Oct 05 '13 at 13:53

The background isn't getting the screen shot because it is not in the scroll view, so you have a few options, if your scrollView takes up the entire view's area then you could take a screen shot of self.view instead, if it takes up a small area, then your only other option is to put the background with in the scrollView and take a screen shot of the scrollView. This would mean allocating a new UIImageView, resetting the frame to have the proper width, height, origin, and then adding it to the scroll view, take the snapshot, then remove this UIImageView

Make snapshot of all UIScrollView content

1 Answers1