一個從UIImageView中獲得Image位置的函數

[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);   廢話不多說貼代碼。再stackOverflow中找到的馬克下！