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Editorial Team
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Asked: 2026-06-03T22:28:14+00:00

I would like to implement an app using a UIScrollView with paging, similar to

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I would like to implement an app using a UIScrollView with paging, similar to the apple weather app.

But I am a little concerned about performance. The example implementation I have been using loads all of the views then the application launches. After a certain point, once this prove slow?

I wonder how Apple’s camera roll is dealing with this, where a user may have 100+ photos that can be scrolled through. Should I try to figure out a way to build the view only when it is needed? Or maybe there is a way to replicate the dequeue reusable cell technique from a UITableView, only for horizontal view loading, since each view will have the same layout.

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1 Answer

  1. Editorial Team

    By far the most efficient solution (and this is used in many photo-browsing apps such as Facebook, and probably the native Photos app too) is going to be to load the content on-demand, just as UITableView does. Apple’s StreetScroller sample project should get you on the right track.

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