Timed actions
| Severity | Serious |
|---|---|
| Accessibility Principle | Perceivable |
| Affected users | Visual, Mobility |
| Success criterion | 2.2.1 |
Timed actions refer to tasks or functions within an app that are set to occur after a specific duration or at particular intervals. When implementing timed actions, it's essential to take into account the following considerations to ensure accessibility and a positive user experience:
- Turn off: The user is allowed to turn off the limit before encountering it.
- Adjust: The user is allowed to adjust the time limit before encountering it over a wide range that is at least ten times the length of the default setting.
- Extend: The user is warned before time expires and given at least 20 seconds to extend the time limit with a simple action (for example, "press the space bar"), and the user is allowed to extend the time limit at least ten times.
- Real-time Exception: The time limit is a required part of a real-time event (for example, an auction), and no alternative to the time limit is possible.
- Essential Exception: The time limit is essential and extending it would invalidate the activity.
- 20 Hour Exception: The time limit is longer than 20 hours.
Expectations
Assistive Technology: Screen Reader
- When: A non-essential action is happening
- Then: The timout should be disabled
Assistive Technology: Time to take action (Android only)
- When: A non-essential action is happening
- Then: The app should respect the Time to take action setting
tip
The Time to take action value can be retrieved by using the getRecommendedTimeoutMillis utility.