- Success Criterion 2.5.4
- Conformance level A
- W3C reference F106
Shake or Tilt Control With No Way to Turn It Off
2.5.4 — Motion Actuation
Scenario
Setting
A streaming music app's search results
What’s wrong
A shake/tilt-controlled feature can't be switched off — users with tremors trigger it accidentally, and users who can't move the device can't use it.
Example
A QA pass on a streaming music app's search results turns this up: a shake/tilt-controlled feature can't be switched off — users with tremors trigger it accidentally, and users who can't move the device can't use it.
Why it matters
People with tremor and people whose device cannot be moved freely. On a streaming music app's search results, that means they lose track of where they are on the page.
How to test
Trigger the motion-activated feature (shake, tilt), then check device/app settings for a way to turn it off: if no such setting exists, it fails.
How to fix
Add a UI control for the motion feature and a setting to turn motion input off.
Outcome
With the fix in place on a streaming music app's search results, they complete the task using only the keyboard.
Who is affected
People with tremor and people whose device cannot be moved freely.
Learn more
- Understanding Understanding document (opens in a new tab)
- Technique Related technique (opens in a new tab)