# Android 의존성 주입 (Android)

> Hilt와 Dagger를 이용한 Dependency Injection: @Inject, @Module, @Provides, Scopes, Qualifiers, Testing

- 15 면접 질문
- Mid-Level
- [면접 질문: Android](https://sharpskill.dev/ko/technologies/android/interview-questions.md)

## 1. Dependency Injection (DI)란 무엇인가요?

**답변**

Dependency Injection은 클래스의 의존성을 내부에서 생성하는 대신 외부에서 제공하는 패턴입니다. 이를 통해 테스트 용이성과 모듈성이 향상되고 컴포넌트 간 결합도가 줄어듭니다.

## 2. Hilt란 무엇인가요?

**답변**

Hilt는 Dagger 2를 기반으로 Android를 위해 특별히 설계된 DI 라이브러리입니다. 표준 어노테이션으로 DI 설정을 단순화하고 Android 컴포넌트(Activities, Fragments, ViewModels)를 자동으로 관리합니다.

## 3. @HiltAndroidApp 어노테이션은 무엇에 사용되나요?

**답변**

@HiltAndroidApp은 Application 클래스에 적용하여 Hilt 코드 생성을 트리거합니다. 애플리케이션 루트 컴포넌트를 생성하고 앱 전체에서 의존성 주입을 활성화합니다. Hilt 사용에 필수입니다.

## 12개 추가 질문 이용 가능

- @AndroidEntryPoint 어노테이션은 무엇에 사용되나요?
- @Inject 어노테이션은 무엇에 사용되나요?

무료로 가입하기: https://sharpskill.dev/ko/login

## 기타 Android 면접 주제

- [Android 기초](https://sharpskill.dev/ko/technologies/android/interview-questions/android-fundamentals.md): 24개 질문, Junior
- [Android UI 및 리소스](https://sharpskill.dev/ko/technologies/android/interview-questions/android-ui-and-resources.md): 30개 질문, Junior
- [Android 생명주기](https://sharpskill.dev/ko/technologies/android/interview-questions/android-lifecycle.md): 30개 질문, Junior
- [Android 내비게이션](https://sharpskill.dev/ko/technologies/android/interview-questions/android-navigation.md): 26개 질문, Junior
- [Android 데이터 관리](https://sharpskill.dev/ko/technologies/android/interview-questions/android-data-management.md): 29개 질문, Junior
- [Android 네트워킹](https://sharpskill.dev/ko/technologies/android/interview-questions/android-networking.md): 29개 질문, Junior
- [Android 테스트](https://sharpskill.dev/ko/technologies/android/interview-questions/android-testing.md): 28개 질문, Junior
- [Android Gradle](https://sharpskill.dev/ko/technologies/android/interview-questions/android-gradle.md): 26개 질문, Junior
- [Android를 위한 Kotlin 언어 기초](https://sharpskill.dev/ko/technologies/android/interview-questions/android-kotlin-language-essentials.md): 24개 질문, Junior
- [Room Database](https://sharpskill.dev/ko/technologies/android/interview-questions/android-room-database.md): 25개 질문, Mid-Level
- [백그라운드 작업](https://sharpskill.dev/ko/technologies/android/interview-questions/android-background-work.md): 18개 질문, Mid-Level
- [Jetpack Compose](https://sharpskill.dev/ko/technologies/android/interview-questions/android-compose.md): 28개 질문, Mid-Level
- [권한 및 기기 기능](https://sharpskill.dev/ko/technologies/android/interview-questions/android-permissions-and-device.md): 21개 질문, Mid-Level
- [Android용 Firebase](https://sharpskill.dev/ko/technologies/android/interview-questions/android-firebase.md): 23개 질문, Mid-Level
- [Android MVVM Architecture](https://sharpskill.dev/ko/technologies/android/interview-questions/android-mvvm-architecture.md): 18개 질문, Mid-Level
- [Android 네트워킹 고급](https://sharpskill.dev/ko/technologies/android/interview-questions/android-networking-advanced.md): 13개 질문, Mid-Level
- [Kotlin 컬렉션과 연산자](https://sharpskill.dev/ko/technologies/android/interview-questions/android-kotlin-collections-operators.md): 20개 질문, Mid-Level
- [Kotlin Coroutines와 Flow](https://sharpskill.dev/ko/technologies/android/interview-questions/android-kotlin-coroutines-flow.md): 20개 질문, Mid-Level
- [Android MVI Architecture](https://sharpskill.dev/ko/technologies/android/interview-questions/android-mvi-architecture.md): 17개 질문, Mid-Level
- [Android Clean Architecture](https://sharpskill.dev/ko/technologies/android/interview-questions/android-clean-architecture.md): 21개 질문, Senior
- [Android Compose 고급](https://sharpskill.dev/ko/technologies/android/interview-questions/android-compose-advanced.md): 17개 질문, Senior
- [Android Performance and Monitoring](https://sharpskill.dev/ko/technologies/android/interview-questions/android-performance-monitoring.md): 13개 질문, Senior
- [Android Security and Privacy](https://sharpskill.dev/ko/technologies/android/interview-questions/android-security-privacy.md): 18개 질문, Senior
- [Android CI/CD and Release](https://sharpskill.dev/ko/technologies/android/interview-questions/android-cicd-release.md): 15개 질문, Senior
- [Android UX and Form Factors](https://sharpskill.dev/ko/technologies/android/interview-questions/android-ux-form-factors.md): 18개 질문, Senior
- [Android Testing Advanced](https://sharpskill.dev/ko/technologies/android/interview-questions/android-testing-advanced.md): 18개 질문, Senior

---

Source: SharpSkill (https://sharpskill.dev), tech interview preparation for your real stack.
HTML version of this page: https://sharpskill.dev/ko/technologies/android/interview-questions/android-dependency-injection