AgentSkillsCN

Android Legacy State

利用协程与生命周期，将状态与视图无缝集成的标准。

SKILL.md
--- frontmatter
name: Android Legacy State
description: Standards for State integration with Views using Coroutines and Lifecycle
metadata:
  labels: [android, state, views, lifecycle]
  triggers:
    files: ['**/*Fragment.kt', '**/*Activity.kt']
    keywords: ['repeatOnLifecycle', 'launchWhenStarted']

Android Legacy State Standards

Priority: P1

Implementation Guidelines

Flow Consumption

  • •Rule: ALWAYS use repeatOnLifecycle(Lifecycle.State.STARTED) to collect flows in Views.
  • •Why: Prevents crashes (collecting while view is destroyed) and saves resources (stops collecting in background).

LiveData vs Flow

  • •New Code: Use StateFlow exclusively.
  • •Legacy: If using LiveData, observe with viewLifecycleOwner (Fragment), NOT this.

Anti-Patterns

  • •launchWhenX: **Deprecated**: Use repeatOnLifecycle.
  • •observe(this): **Leak Risk**: Use viewLifecycleOwner in Fragments.

References