一个从UIImageView中获得Image位置的函数
[cpp]
[cpp]
(CGRect)getFrameSizeForImage:(UIImage *)image inImageView:(UIImageView *)imageView {
float hfactor = image.size.width / imageView.frame.size.width;
float vfactor = image.size.height / imageView.frame.size.height;
float factor = fmax(hfactor, vfactor);
// Divide the size by the greater of the vertical or horizontal shrinkage factor
float newWidth = image.size.width / factor;
float newHeight = image.size.height / factor;
// Then figure out if you need to offset it to center vertically or horizontally
float leftOffset = (imageView.frame.size.width - newWidth) / 2;
float topOffset = (imageView.frame.size.height - newHeight) / 2;
return CGRectMake(leftOffset, topOffset, newWidth, newHeight);
废话不多说贴代码。再stackOverflow中找到的马克下！
补充：移动开发 , IOS ,
