What is equivalent to center crop scale type of Android ImageView for iOS UIImageView?

Question

I would like to ask how to scale an image to fill a UIImageView but still keep its aspect ratio, just like the centerCrop scale type of Android ImageView does.

Furmenty

#14134535 – Movement

Set imageView.contentMode to .scaleAspectFill (or .scaleAspectFit). – Misspend

@Misspend scaleAspectFit is equivalent of android centerInside – Mummify

@iffatfatima - Yep, I just wanted to share both of the aspect preserving scaling contentModes. – Misspend

Answer 1

You should use .scaleAspectFill. In swift 4.2:

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

Farce

.scaleAspectFill will stretch the image to fit into UIImageView. If you want to keep the aspect ratio, you should use .scaleAspectFit. The best way is you try both solution in the code to see the final result. If this helps you, please upvote my post. Thank you! – Farce

Yes, you're right @Rob. I'll update my answer. Thank you. – Farce

Answer 2

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

Mummify

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.

Melvinamelvyn

Those are the Objective-C constants, but OP was asking about Swift. – Misspend

he can write like imageView.contentMode = .scaleAspectFill & if he want to set the image as its pixels quality .scaleAspectFit will be perfect. – Melvinamelvyn