accessibilityActivate() lets you capture a VoiceOver double tap. This is useful if you are creating a custom component you interact with using complex gestures or VoiceOver navigation gestures. An example: slide to unlock.
https://developer.apple.com/documentation/objectivec/nsobject-swift.class/accessibilityactivate()
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Accessibility labels should not contain the type of the control, that's a job for the accessibility trait instead. If you have a button with a label like "Close button" and the ".button" trait, VoiceOver will say: "Close button, button".
Configuring the header accessibility trait, when appropriate, is one of my favourite accessibility quick wins. In this example, you need a single swipe down, instead of 12 swipes to the right to get to from Podcasts to Artists, in the app.
All the accessibility capabilities you can check for, have counterpart notification names you can observe in case the user changes its preferences while using your app. https://x.com/dadederk/status/1577435144129892352
