Toast snackbar banner

When I use	I see/hear
Tab	Focus visibly moves in logical order to the toast
Space	Any elements inside are activated on iOS and Android
Enter	Any elements inside are activated on Android

When I use	I hear
Swipe	Focus moves within the toast
Doubletap	Activates elements within the toast

Reads	I hear
Name	The element announces its purpose or title
Role	Identifies itself as a button in iOS and "double tap to activate" in Android
Group	When closed, focus returns to a logical place in the page
State	Toast remains open until closed by user

When I use	I see
Text resize	Text can resize up to 200% without losing information

Developer notes

A snack bar or toast must not be timed to disappear.
An element to close it must be available.
A message that appears after the user has arrived on the screen must be announced dynamically, but focus shouldn’t move to it.
A message that is present when screen is launched must be in the swipe order for the screen reader user and tab order for the keyboard user.
Push notifications that have a place where they are stored and users can access them at a later time, can be timed to disappear

Name describes the purpose of the Close X or CTA
iOS Options
- Set a label in Interface Builder in the Identity Inspector
- Use accessibilityLabel on control
Android Options
- android:text XML attribute
- Use contentDescription for elements without a visible label.
- contentDescription overrides android:text

n/a

n/a

iOS Options
- accessibilityElementIsFocused
- isAccessibilityElement - Yes, if the element can respond to user input
- To move screen reader focus to newly revealed content: UIAccessibilityLayoutChangedNotification
- To NOT move focus, but announce new content: UIAccessibilityAnnouncementNotification
Android Options
- android:focusable=true
- android=clickable=true
- Implement an onClick( ) event handler for keyboard, not onTouch( )
- nextFocusDown
- nextFocusUp
- nextFocusRight
- nextFocusLeft
- accessibilityTraversalBefore (or after)
- To move screen reader focus to newly revealed content: Type_View_Focused
- To NOT move focus, but announce new content: accessibilityLiveRegion
- To hide controls: Important_For _Accessibility_NO