skills/ HoangNguyen0403/agent-skills-standard

android-legacy-navigation

Implement Jetpack Navigation Component with XML graphs and SafeArgs for type-safe fragment navigation. Use when working with XML-based navigation or SafeArgs in legacy Android projects; defer drawer and other UI-chrome work to UI skills.

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SKILL.md

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Android Legacy Navigation Standards

Priority: P1 (HIGH)

1. Set Up Single-Activity Architecture

  • Use one Host Activity with NavHostFragment.
  • Enable SafeArgs plugin — MANDATORY for passing data between fragments.

See XML graph & SafeArgs examples for NavHostFragment setup.

2. Manage Navigation Graphs

  • Nested Graphs: Modularize navigation/ resources (e.g., nav_auth.xml, nav_main.xml) to keep graphs readable.
  • Deep Links: Define explicit <deepLink> in graph, not AndroidManifest intent filters.

3. Navigate with SafeArgs

See XML graph & SafeArgs examples for type-safe navigation usage.

Anti-Patterns

  • No Raw String Bundle Keys: Use SafeArgs generated type-safe classes.
  • No Manual Fragment commit(): Use NavController for all navigation.

References

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