Building accessibility support for Compose
summary
Compose generates a semantic model that becomes the AccessibilityNodeInfo tree so screen readers and services like TalkBack and Voice Access can interact; built‑in Material/Foundation components auto‑populate labels and actions while composables without meaning are omitted to reduce noise. Clickable modifiers or setting mergeDescendants group nodes; use semantics tree inspection via the Layout Inspector or Compose tests to verify output. Use clearAndSetSemantics to control read order, inspect Material implementations for correct behavior, and manually test with accessibility services.
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chapters (8)
- 0:00Introduction to accessibility
- 0:45Accessibility design principles
- 1:48User interaction with apps
- 3:27Android accessibility framework
- 5:27Accessibility in Compose
- 7:23Merging and grouping elements
- 9:34Customizing semantics
- 11:49Accessibility best practices
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