Android Dependency Injection with Dagger Hilt > 자유게시판

Hilt simplifies dependency injection in Android apps using Dagger under the hood. Add Hilt dependencies and apply the Gradle plugin. Annotate Application class with @HiltAndroidApp. AndroidEntryPoint makes activities and fragments injectable. @Inject constructor tells Hilt how to provide dependencies. @Module defines dependency providers for classes you don't own. @InstallIn specifies which Hilt component installs the module. @Binds provides interfaces, @Provides provides instances from modules. Scopes like @Singleton control dependency lifecycle. @ViewModelInject provides dependencies to ViewModels with Hilt. @EntryPoint accesses injected dependencies from non-Hilt classes. Hilt replaces manual Dagger setup with automatic component generation. Component hierarchy follows Android lifecycle: SingletonComponent, ActivityComponent, FragmentComponent. Testing with Hilt uses @HiltAndroidTest annotation and HiltTestRunner. Hilt improves testability by making . Build time validation catches dependency errors early. Learning curve is gentler than raw Dagger. Hilt is the recommended DI solution for Android apps. It reduces boilerplate while maintaining Dagger's compile-time safety.