One of the accessibility issues I see more often in iOS apps, believe it or not, is unlabelled elements. This happens especially for buttons with an icon but no title. In those cases, you need to configure an accessibility label manually.
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Images that convey important information should have the .image accessibility trait and provide an alternative text in the accessibility label. "Image" will be added to VoiceOver's utterance and the user will be able to use Image Explorer. Image Explorer is fairly new, introduced just a couple years ago. But if you were appropriately configuring the image trait, users suddenly got this new functionality for free. Isn't that awesome? With VoiceOver on, open Image Explorer by swiping up in an image and double tapping. It lets users find people (with a basic description and positioning in the photo), objects or text in images, using on-device intelligence. It is very cool!
Guidelines from Apple: Begin with a verb that explains the results of the action. Avoid using the imperative form of a verb because that can make it sound like a command. Don’t include the action type. Don’t include the control. https://developer.apple.com/documentation/objectivec/nsobject-swift.class/accessibilityhint
Color contrast between text and background is very important for perceivability. As colors come closer to each other, they’re more difficult to distinguish. Notice that colors that work well with big font sizes may not for smaller text.
Content © Daniel Devesa Derksen-Staats on Accessibility up to 11! is licensed under CC BY 4.0. License details
