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ios swift cocoa uikit

Is UIKit still using OpenGL rendering in 2020?

发布于 2020-11-28 04:48:11

I want to figure out how UIkit renders, but when I searched, I only found some articles, claiming that UIkit uses OpenGL to command GPU. Apple has given up support for OpenGL long ago, I guess these articles may be out of date (Shouldn't it be something like Metal?).

If I want to learn about this, what official documents should I read, and what keywords to search for in search engines?

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kkshinkai
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Sweeper 2020-11-28 13:43:25

UIKit is built upon Core Animation. Every view has a CALayer and that is what's on the screen. Core Animation now uses Metal and CoreGraphics, according to this page, which is referenced by the documentation page for the Core Animation.

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