Both iOS and Android support a number of Accessibility features. Below is an overview of what is supported in your Twixl apps (requires 15.3 or higher).
1. VoiceOver (iOS) & Talkback (Android)
From Apple's web site: "VoiceOver is a screen reader that interacts with objects in your apps so users can drive the interface even if they can’t see it. Ensure that the user interface elements in your apps are accessible and useful."
From the Android web site: "Fully interact with what’s on your screen through sound and touch. Use TalkBack to hear everything from notifications to app names to how much battery life you have left."
In your Twixl apps, nothing needs to be configured to support this. VoiceOver and Talkback are supported for the following:
- Reading PDF articles
- Reading HTML articles
- User Interface elements (buttons, alerts, …)
- Text in browse grid cells
- The Settings screen
- The Paywall screen
NOTE: At this time, interactive InDesign content is not supported.
2. Dynamic Type (iOS) & Font size and display size (Android)
With this feature, people can choose their preferred text size and the OS will switch fonts automatically as needed.
In your Twixl apps, nothing needs to be configured to support this. Dynamic Type and Font&Display size are supported for the following:
- Reading PDF articles
- Reading HTML articles
- User Interface elements (buttons, alerts, …)
- Text in browse grid cells
- The Settings screen
- The Paywall screen
NOTE: At this time, interactive InDesign content is not supported.
3. How to use?
Accessibility features are activated on a device level. Therefore, nothing has to be changed by the end-user in your app itself. Please refer to the Apple and Google help pages on how to activate and use the accessibility features on iOS and Android devices.
For more general information on mobile accessibility guidelines and tips, check international initiatives as W3C.