Posts tagged with: Image Loading

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All Development AI Apple Vibe Coding SwiftUI Announcements

A contact sheet of small photo thumbnails laid out in a grid — the size the image actually needs to be decoded at, not the size it was shot at

Your SwiftUI List Scrolls Like Mud. The Images Aren't the Problem — Decoding Them at Full Size Is.

Loading a photo into a 60pt thumbnail still decodes it at full resolution unless you tell iOS otherwise. Here's the actual fix: CGImageSourceCreateThumbnailAtIndex, why UIImage(data:) alone doesn't help, and how to downsample before a pixel ever hits the view.

September 5, 2026 6 min read