Introducing Accessibility to Android Apps

As Mobile devices are becoming integral part of our lives, mobile apps need to be accessible to everyone including the ones with disabilities. While creating beautiful user interfaces, we need to also ensure that every user is able to navigate through and use every feature the app is providing. This talk will give you insight into accessibility on Android.

Transcript

1. Hubli Varsha Kulkarni Senior Software Engineer, Quest Global Speaker Image Placeholder Introducing Accessibility to your Android Apps
2. What is Accessibility?
4. Accessibility on Android
7. Supporting accessibility features on Android
8. Login, button, Double tap to activate
9. android:contentDescription="@string/add_task" Unlabelled Button, Double tap to activate Add Task Button, Double tap to activate
10. android:hint="@string/email" Email Id, EditBox, Double Tap to Edit Text Missing accessibility label: provide either a view with an `android:labelFor` that references this view or provide an `android:hint` android:labelFor="@id/etEmail" EditBox for Name, Double Tap to Edit Text
11. Summary 1. Add precise, concise content label 2. Use String Resources 3. Add descriptive attributes
12. Custom Accessibility Actions ViewCompat.addAccessibilityAc tion(taskItemViewHolder.itemVi ew, "Delete") { _,_ -> deleteItemAction(position) true}
13. Color Contrast 18.pt< 4.5 : 1 Or 3 : 1
14. Touch Target • minHeight and minWidth to 48dp • Padding • Advance touchDelegate API
15. Visibility Enhancements • Responsive UI • Readable fonts • Unrestricted text areas to expand or scroll
17. Testing your apps for Accessibility
18. • Android Studio tools • Accessibility Scanner App • ATF with Espresso/Robolectric tests • Pre Launch Reports • Manual testing
19. References
20. Questions?