ios - 如何在 AspectFit 比率后调整 UIImageView 的大小

Question

如何在将其内容模式设置为 UIViewContentModeScaleAspectFit 后调整 UIImageView 的大小，以便我可以删除顶部和下方的空白区域。请看附图

提前致谢:)

Answer 1

希望这对其他人也有帮助，如果它在某些情况下会中断，请发表评论:)

- (CGRect)frameForImageattribute:(CGSize)image inImageViewAspectFit:(UIImageView *)imageView {
        float imageRatio = image.width / image.height;
        float viewRatio = imageView.frame.size.width / imageView.frame.size.height;
        if (imageRatio < viewRatio) {
            float scale = imageView.frame.size.height / image.height;
            float width = scale * image.width;
            return CGRectMake(kLeftPading, kTopPading, width, imageView.frame.size.height);
        }
        else {
            float scale = imageView.frame.size.width / image.width;
            float height = scale * image.height;  
            return CGRectMake(kLeftPading, kTopPading, imageView.frame.size.width, height);
        }
}