Accessibility : Designing accessible components

There are following checklists for designing  the android app:

• Touch target should be minimum 46dp

• TextSize should be minimum 14sp

• The application correctly responds to the Huge font size option.

• Ghost Element : means that element which is not visible should not be focusable at that time.

• ImageView should have a well-defined description under contentDescription

• Color contrast should be correct , can check the ratio with :  https://webaim.org/resources/contrastchecker/

• All interactive content must be controllable by the user (pausing a carousel, adding an accessible button to exit full-screen mode, etc.).

• Interactive elements must have the state_focused defined and must be easily distinguishable when having the focus , which is helpful for external keyboard support.

• There should be the logical reader order , like from left to right , top to bottom etc. there are some cases where these order Talkback may not decide the correct order , then in that case , order can be set in xml file/ in kotlin file , which is explained in this post.

• The element which is changing dynamically , should be announced when any change occur . Briefly described in this post.