Can the viewing area be judged by UIScrollView?

Can the viewing area be judged by UIScrollView?

There's many ImageView in my开发者_StackOverflow UIScrollVer, I only hope that in the visible region for loading images UIImageView.

How can I do?

thanks for any helps!

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Just use your image size for the UIImage that holds the image and set that as your content size.

UIImage *myImage = [UIImage imageNamed:@"myImage.png"];
self.scrollView.contentSize = myImage.size;

Hope this helps.

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The contentOffset property of UIScrollView shows the current viewing area.