什么相当于Android ImageView for iOS UIImageView的中心裁剪比例类型？

Question

我想问一下如何缩放图像以填充UIImageView但仍保持其宽高比，就像Android ImageView的centerCrop缩放类型一样。

Answer 1

You should use .scaleAspectFill . In swift 4.2:

myImageView.contentMode = .scaleAspectFill
myImageView.clipsToBounds = true // If you want to crop

Answer 2

You can set image view contentMode to UIView.ContentMode.scaleAspectFill . It is equivalent of Android scaleType centerCrop

Answer 3

Following are the main content modes of UIImageView:

• UIViewContentModeScaleToFill
• UIViewContentModeScaleAspectFit
• UIViewContentModeScaleAspectFill

the one to fill the whole imageview is 'ScaleAspectFill' plus you can also use 'clipsToBound' property as true so that it will crop the extra image which is out of imageview.