위치 권한 요청하기

위치 정보에 권한이 필요한 이유

import CoreLocation

let manager = CLLocationManager()

Info.plist 사용 목적 설명 키

<!-- Info.plist -->
<key>NSLocationWhenInUseUsageDescription</key>
<string>We use your location to show nearby places.</string>

CLLocationManager 만들기

final class LocationService: NSObject {
    let manager = CLLocationManager()

    override init() {
        super.init()
        manager.delegate = self
    }
}

앱 사용 중 권한 요청

func requestPermission() {
    manager.requestWhenInUseAuthorization()
}

항상 권한 요청

func requestAlways() {
    manager.requestAlwaysAuthorization()
}

권한 상태 읽기

let status = manager.authorizationStatus
switch status {
case .notDetermined: print("Ask the user")
case .denied, .restricted: print("No access")
case .authorizedWhenInUse, .authorizedAlways: print("Good to go")
@unknown default: break
}

CLLocationManagerDelegate

extension LocationService: CLLocationManagerDelegate {
    func locationManagerDidChangeAuthorization(_ manager: CLLocationManager) {
        switch manager.authorizationStatus {
        case .authorizedWhenInUse, .authorizedAlways:
            manager.startUpdatingLocation()
        default:
            print("Not authorized")
        }
    }
}

거부 또는 제한 상태 처리

func handle(_ status: CLAuthorizationStatus) {
    if status == .denied {
        // Deep-link the user to Settings > Privacy > Location
        print("Open Settings to enable location")
    }
}

정확도 권한(정확한 위치와 제한된 위치)

if manager.accuracyAuthorization == .reducedAccuracy {
    manager.requestTemporaryFullAccuracyAuthorization(
        withPurposeKey: "PreciseForNavigation"
    )
}

위치 서비스 활성화 여부 확인

DispatchQueue.global().async {
    if CLLocationManager.locationServicesEnabled() {
        print("System location is on")
    } else {
        print("System location is off")
    }
}

전체 권한 요청 흐름

final class LocationService: NSObject, CLLocationManagerDelegate {
    let manager = CLLocationManager()
    override init() {
        super.init()
        manager.delegate = self
        manager.requestWhenInUseAuthorization()
    }
    func locationManagerDidChangeAuthorization(_ m: CLLocationManager) {
        if m.authorizationStatus == .authorizedWhenInUse {
            m.startUpdatingLocation()
        }
    }
}

빠른 확인: 권한 요청

복습: 권한 요청