Accessibility

App Builders 2016 in Zurich, Switzerland

Transcript

1. Accessibility Alexsander Akers · @a²
2. Who am I? Alexsander Akers ! " → # $
3. Agenda —Why apps? —What is it? —Why accessibility? —Demo —Gratuitous GIF —Tools at your disposal —Keep accessibility in mind
4. Why apps?
5. What is accessibility? Accessibility is inclusivity.
6. Why accessibility? Perfect apps, for everyone.
7. Demo
9. Tools at your disposal —Traits —Label —Value —Containers —Actions
10. Custom components isAccessibilityElement Assistive technologies (like VoiceOver or Switch Control) only recognize elements with this property enabled.
11. Custom components accessibilityTraits Describes the element with traits such as NotEnabled, Button, StaticText, Image, Adjustable, etc.
12. Tools accessibilityLabel Describes the component. By default, UIKit controls have useful default values. A UILabel reads its text; a UIButton reads its currentTitle.
13. Tools accessibilityValue Describes the value of a component. For a slider, its value; a switch, its "on" state.
14. IB Support
15. Actions accessibilityCustomActions An array of actions, each with a localized title, and a target-action pair for invocation.
16. Actions accessibilityActivate() Performs an action when the user activates the item, by selecting the item and double tapping the screen. Most accessibility action methods return true to indicate success, or false to bubble up the event.
17. Actions accessibilityIncrement() accessibilityDecrement() Override these methods to increment or decrement the value of your custom component, such as a slider or other adjustable control. Required if your component has the Adjustable accessibility trait.
18. Actions accessibilityPerformMagicTap() Toggle the most important state of your app: —Phone: Answers or ends phone calls —Music: Plays or pauses music —Clock: Starts or stops the timer —Camera: Takes a picture
19. Actions accessibilityPerformEscape() Implement this method on an element or containing view to dismiss it. —Popover: dismiss action —Alert: perform cancel action
20. Keep accessibility in mind —Persuade management that implementing accessibility will increase your potential user base. —Include accessibility implementation and testing time in feature time estimates. —Don't leave everything until the last week.
21. Accessibility Alexsander Akers · @a²