# 권한 및 기기 기능 (Android)

> 런타임 권한, Camera, Location, Sensors, Bluetooth, NFC, Telephony 및 기기 기능 감지

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

## 1. Normal 권한과 Dangerous 권한의 차이점은 무엇인가요?

**답변**

Normal 권한은 설치 시 자동으로 부여됩니다(예: INTERNET, VIBRATE). Dangerous 권한은 Android 6.0부터 런타임에 사용자의 명시적 동의가 필요합니다(예: CAMERA, LOCATION). 개인 정보에 영향을 미치기 때문입니다.

## 2. Android에서 런타임 권한을 요청하는 방법은 무엇인가요?

**답변**

먼저 checkSelfPermission()으로 확인한 후, requestPermissions() 또는 최신 Permission Launcher(registerForActivityResult)로 요청합니다. onRequestPermissionsResult() 또는 launcher 콜백에서 응답을 처리합니다.

## 3. ActivityCompat.checkSelfPermission()는 무엇에 사용되나요?

**답변**

checkSelfPermission() 메서드는 권한이 현재 부여되어 있는지 확인합니다. 부여된 경우 PERMISSION_GRANTED, 그렇지 않으면 PERMISSION_DENIED를 반환합니다. 권한이 필요한 기능을 사용하기 전에 항상 확인하세요.

## 18개 추가 질문 이용 가능

- 권한 그룹(permission groups)이란 무엇인가요?
- shouldShowRequestPermissionRationale()는 무엇에 사용되나요?

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