# Aosp UI Framework

> AOSP Part X — UI Framework. Use when reasoning about Widgets and RemoteViews (AppWidget framework, RemoteViews, RemoteCompose, host/provider model), WebView (WebView Mainline module, Chromium content layer, renderer process, JS bridges, sandboxing), Accessibility (AccessibilityService, AccessibilityNodeInfo, TalkBack, magnification, Switch Access), or Internationalization (ICU, locale resolution, resource qualifier matching, RTL support, Unicode in AOSP). Chapters 44–46.

- Skill: `aospbooks/aosp-ui-framework` (Agent Skill)
- Install (CLI): `npx skillmds@latest add aospbooks/aosp-ui-framework`
- Raw SKILL.md: https://api.skillmd.com/api/skills/aospbooks/aosp-ui-framework/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Web & Frontend
- Author: aospbooks (https://skillmd.com/u/aospbooks)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/aospbooks/aosp-ui-framework

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# AOSP Part X — UI Framework

Cross-cutting UI infrastructure: home-screen widgets, the WebView module,
the accessibility framework, and locale/i18n handling.

## Chapters in this Part

- `44-widgets-remoteviews.md` — AppWidget framework, RemoteViews, RemoteCompose, host/provider model, update flow
- `45-webview.md` — WebView Mainline module, Chromium content layer, renderer process, JS bridges, sandboxing
- `46-accessibility.md` — AccessibilityService, AccessibilityNodeInfo, TalkBack, magnification, accessibility events, Switch Access
- `47-internationalization.md` — ICU, locale resolution, resource qualifier matching, RTL support, formatters, Unicode in AOSP

## When to load which chapter

- Question mentions AppWidget, RemoteViews, RemoteCompose, widget host → `44-widgets-remoteviews.md`
- Question mentions WebView, Chromium, renderer process, JS interface → `45-webview.md`
- Question mentions AccessibilityService, AccessibilityNodeInfo, TalkBack, Switch Access → `46-accessibility.md`
- Question mentions ICU, locales, RTL, resource qualifiers → `47-internationalization.md`