如何在iOS中为图像提供宽高比

Question

I've created the image view and set the image dynamically based on the API response. I've set the image and constraints programmatically and didn't use any storyboard files. Currently I am setting the content mode of the image view. Now I want to set the ratio value to 21:9 to the image programmatically. Is that possible to give the ratio value to the image?

Thanks in Advance!

Answer 1

你可以使用：

imageView.heightAnchor.constraint(equalTo: imageView.widthAnchor, multiplier: 21/9).isActive = true