AgentSkillsCN

Android Dependency Injection (Hilt)

Hilt 设置、作用域与模块的标准。

SKILL.md
--- frontmatter
name: Android Dependency Injection (Hilt)
description: Standards for Hilt Setup, Scoping, and Modules
metadata:
  labels: [android, di, hilt, dagger]
  triggers:
    files: ['**/*Module.kt', '**/*Component.kt']
    keywords: ['@HiltAndroidApp', '@Inject', '@Provides', '@Binds']

Android Dependency Injection (Hilt)

Priority: P0

Implementation Guidelines

Setup

  • •App: Must annotate Application class with @HiltAndroidApp.
  • •Entries: Annotate Activities/Fragments with @AndroidEntryPoint.

Modules

  • •Binding: Use @Binds (abstract class) over @Provides when possible (smaller generated code).
  • •InstallIn: Be explicit (SingletonComponent, ViewModelComponent).

Construction

  • •Constructor Injection: Prefer over Field Injection (@Inject constructor(...)).
  • •Assisted Injection: Use for runtime parameters (@AssistedInject).

Anti-Patterns

  • •Component Manual Creation: **No Manual Dagger**: Use Hilt Standard.
  • •Field Inject in Logic: **No Field Inject**: Only in Android Components.

References