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Editorial Team
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Asked: 2026-05-22T16:14:16+00:00

I tried to implement the lazy loading solution for UIScrollView with paging enabled, as

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I tried to implement the lazy loading solution for UIScrollView with paging enabled, as in the PageControl example from Apple. It seems to work fine, the only problem is that as the user scrolls past the 50% of the page, there is this short hitch as the content of the next page is loaded (obviously because loading the next ViewController takes some time and it seems to happen on the main thread).

Is there some way to make the scrolling seem more smooth that would work no matter how fast the user scrolls ?

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1 Answer

  1. Editorial Team

    You need to make sure that anything which takes time happens asynchronously. The techniques for this will vary based on what kind of content you’re loading or what sort of drawing you’re doing that causes the delays. Try to load images in the background, do custom drawing in the background, use operations or gcd to break up large tasks into smaller chunks that can happen concurrently, etc.

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