Rules

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Learn more about the accessibility rules supported within axe DevTools for Android. Below you'll find brief descriptions of each rule along with the link to the original guidelines. For more details on mobile rules, including remediation advice, please visit the axe DevTools Mobile SDK documention.

Rules come from three sources:

WCAG Success Criterion
Platform Guideline - defined by Apple
Best Practice - defined by Accessibility Experts at Deque

tip

Throughout our rules documentation, you'll find references to Name, Role, and Value. Please refer to WCAG's definitions.

Rule Overview

important

Colliding Views and Color Contrast rules use a trained computer vision algorithm. These types of rules will only show results from views rendered on the screen at the time of the scan.

	Rule & Description	Guidelines	Impact
Accessibility Element Focus Box	A11y Element Focus Box Every VoiceOver element that is focusable should be within the VoiceOver focus box.	Best Practice	Moderate
Active Control Name	Active Control Name Active controls such as buttons, switches, and more, require text made available to VoiceOver.	WCAG 2.0 - 4.1.2 A	Critical
Associated Text	Associated Text A control should get its name from a nearby label.	WCAG 2.0 - 1.3.1 A	Critical or Serious
Colliding Controls	Colliding Controls Active controls should not have intersecting bounds.	Platform Guideline	Moderate
Colliding Views	Colliding Views Informative views should not overlap with another view.	Platform Guideline	Minor
Color Contrast	Color Contrast Text elements should adequately contrast with their background.	WCAG 2.0 - 1.4.3 AA	Serious
Conflicting Traits	Conflicting Traits Elements should not have conflicting accessibility traits.	Platform Guideline	Critical
Focusable Text	Focusable Text Text elements should be focusable with VoiceOver.	WCAG 2.0 - 1.3.2 A	Critical
ImageView Name	ImageView Name Images that provide information should have a name.	WCAG 2.0 - 1.1.1 A	Critical
In ScrollView	In ScrollView Visible text should be within a scrollable view.	WCAG 2.0 - 1.4.4 AA	Serious
Inaccessible Action	Inaccessible Action An element that is an active control or contains an active control must have an action that can be activated using Assistive Technology.	WCAG 2.0 - 2.1.1 A	Critical
Label At Front	Label At Front Any active controls with visible text should have a name beginning with that text.	WCAG 2.1 - 2.5.3 Best Practice	Minor
Label In Name	Label In Name Any active controls with visible text should have that exact text within its name.	WCAG 2.1 - 2.5.3 A	Serious
Meaningful Accessible Name	Meaningful Accessible Name An element's accessible name should not include its accessibility trait.	Platform Guideline	Minor
Nested Elements Name	Nested Elements Name Text within an accessibility element should be read by VoiceOver.	WCAG 2.0 - 1.3.2 A	Critical
Screen Orientation	Screen Orientation Applications should support portrait and landscape orientations.	WCAG 2.1 - 1.3.4 AA	Serious
Screen Title	Screen Title Each screen in an application should have a title.	WCAG 2.0 - 2.4.2 A	Moderate
Supports Dynamic Type	Supports Dynamic Type Visible text should support resizing based on device settings.	Platform Guideline	Critical
Touch Target Size	Touch Target Size All active controls should be a minimum of 44pt by 44pt.	WCAG 2.1 - 2.5.5 AAA	Moderate
Touch Target Spacing	Touch Target Spacing All active controls should have a minimum of 24pt by 24pt tappable area.	WCAG 2.2 - 2.5.8 AA	Moderate

Rules

Rule Overview

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