CODEWITHSUNDEEP
swiftuikitswiftui
Khắc Hào
Khắc Hào

Reputation: 2678

Should I create optimized UIImages before viewing them in SwiftUI?

I have an app that has to show multiple images that are large in dimension, which can use up lots of memory.

I'm only familiar with SwiftUI and don't have much experience using UIKit, but according to this WWDC's iOS Memory Deep Dive presentation: there are multiple ways you can reduce memory usage when rendering images in UIKit.

Its possible because rendering images in UIKit takes multiple steps which allows more room for modifications and gives you more flexibility, but in SwiftUI, it's so simple there is not as much room for modifications:

Image("image name")
                .resizable()
                .frame(width:100,height:100)

So does SwiftUI already optimized the image's dimensions and color space with the above code, or is it more memory efficient to use UIKit to optimize the image, then pass the optimized UIImage to SwiftUI for viewing?

Is using UIImages rendered (and optimized) from UIKit for image viewing SwiftUI overall a better practice than just using Image("image name")?

Any answer would be appreciated.

Upvotes: 0

Views: 251

Answers (1)

user3441734
user3441734

Reputation: 17544

You can use any of 

init(nsImage: NSImage)

or

init(uiImage: UIImage)

to take advantage of all knowledge you already have from UIKit or AppKit

Upvotes: 1

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