Day 93

Group distant views with UIAccessibilityElement

19 Aug 2022

Sometimes you can create your own accessibility elements from scratch to group elements too. Perhaps because they're not contained in the same superview. You can combine these elements' frames and provide a suitable accessibility label.

Instagram app with rgillustrator's profile. There is the number of followers, following and posts with titles for these numbers displayed in columns next to the profile image. By default, because of the layout, VoiceOver would say something like

Some of you have asked me how you can support what I do. This would really help, and would be hugely appreciated:

  • Find these posts useful? Share them at work, on social media, or with anyone that might find them interesting. Let's spread the word!

  • Check out any of my apps or games: Xarra!, RetroRapid!, or Mestre!.

    • A download and a review go a long way. They're free by default. On the App Store, ratings and reviews really help more people discover them.

    • Finding any of them useful? If so, and if you can afford it, purchasing lifetime access to all features or subscribing lets me buy the coffee that keeps me caffeinated. Caffeine keeps me going to maintain the apps, bring in new features that I hope you'll love, and keep writing.

You may also find interesting...

It is possible to change the traversing order of accessibility elements by configuring the accessibilityElements array. You should try to avoid it, but one good reason for doing it is if the default order is illogical because of the visual layout.

Creating UIAccessibilityElements, combined with a semanticGroup accessibilityContainerType, can also help you make components as complex as charts accessible. Example from "Bring Accessibility to Charts" WWDC21: https://developer.apple.com/videos/play/wwdc2021/10122/

If you need for a view (and all its subviews) not to be focusable by assistive tech like VoiceOver, you can set its accessibilityElementsHidden property to true. This isn't needed very often, but it can be useful for certain custom experiences.


Content © Daniel Devesa Derksen-Staats on Accessibility up to 11! is licensed under CC BY 4.0. License details