标签：style blog ar color sp for on div log
UIScrollView在放大的时候可以居中，但是缩小的时候总是跑到左上角，在网上找了好久，经过验证，以下是最完美的解决方案：
#pragma mark - UIScrollViewDelegate -(UIView*)viewForZoomingInScrollView:(UIScrollView *)scrollView { for(UIView *view in scrollView.subviews) { if([view isMemberOfClass:[UIImageView class]]) { return view; } } return nil; }
// 使居中 -(void)scrollViewDidZoom:(UIScrollView *)scrollView { CGFloat top = 0, left = 0; if (self.scrollView.contentSize.width < self.scrollView.bounds.size.width) { left = (self.scrollView.bounds.size.width-self.scrollView.contentSize.width) * 0.5f; } if (self.scrollView.contentSize.height < self.scrollView.bounds.size.height) { top = (self.scrollView.bounds.size.height-self.scrollView.contentSize.height) * 0.5f; } self.scrollView.contentInset = UIEdgeInsetsMake(top, left, top, left); }
UIScrollView zoom in/out center
标签：style blog ar color sp for on div log
原文地址：http://www.cnblogs.com/1oo1/p/4115347.html
