UIAccessibilityFocus

An informal protocol that provides a way to find out whether an assistive technology, such as VoiceOver, is focused on an accessible element.

Overview

VoiceOver and other assistive technologies place a virtual focus on elements, which allows users to inspect an element without activating it. If you know the current location of the virtual focus, you can optimize the user experience for assistive technology users. For example, if your application expects people to tap once to select an object and then double-tap to activate it, VoiceOver users must make an extra tap to focus VoiceOver on the object before tapping to select it. To improve the VoiceOver user’s experience, you can move selection to an element at the same time VoiceOver focuses on the element. In this way, the user can activate the element without having to tap again to select the element.

Topics

Getting Focus Information

- accessibilityElementDidBecomeFocused

Sent after an assistive technology has set its virtual focus on the accessibility element.

- accessibilityElementDidLoseFocus

Sent after an assistive technology has removed its virtual focus from an accessibility element.

- accessibilityElementIsFocused

Returns a Boolean value indicating whether an assistive technology is focused on the accessibility element.

See Also

Behaviors

UIAccessibilityIdentification

Methods that associate a unique identifier with elements in your user interface.

UIAccessibilityReadingContent

Methods to implement on an object that represents content that is intended to be read by users, such as a book or an article.

UIAccessibilityContentSizeCategoryImageAdjusting

Methods to determine when to adjust images for different content size categories.