iOS UIImageView與圖片尺寸適配大殺器!
[imageView setContentScaleFactor:[[UIScreen mainScreen] scale]];
imageView.contentMode = UIViewContentModeScaleAspectFill;
imageView.autoresizingMask = UIViewAutoresizingFlexibleHeight;
imageView.clipsToBounds = YES;
在imageView初始化時,當設定了這些屬性,不論圖片長寬比是否與imageView適配,所顯示出來的圖片都不會產生拉伸效果.