SwiftUI Maps 67 - 사용자 위치 표시하기

#1. Info.plist 에서 권한 추가 (Privacy-Location When In Use Usage Description)

#2. ContentView

import SwiftUI

import MapKit

 

 

struct ContentView: View {

    

    @StateObject private var locationManager = LocationManager()

    

    var newRegion: Binding<MKCoordinateRegion>?{

        guard let location = locationManager.location else {

            return MKCoordinateRegion.defaultRegion().asBindable()

        }

        let region = MKCoordinateRegion(center: location.coordinate, latitudinalMeters: 500, longitudinalMeters: 500)

        

        return region.asBindable()

    }

    

    var body: some View {

        if let region = newRegion{

            Map(coordinateRegion: region, interactionModes: .all, showsUserLocation: true)

        }

    }

}

 

struct ContentView_Previews: PreviewProvider {

    static var previews: some View {

        ContentView()

    }

}

 

#3. LocationManager.swfit

 

import Foundation

import CoreLocation

 

class LocationManager: NSObject, ObservableObject{

    

    private let locationManager = CLLocationManager()

    @Published var location: CLLocation?

    private var locationFound: Bool = false

    

    override init(){

        super.init()

        

        locationManager.desiredAccuracy = kCLLocationAccuracyBest

        locationManager.distanceFilter = kCLDistanceFilterNone

        locationManager.requestWhenInUseAuthorization()

        locationManager.startUpdatingLocation()

        locationManager.delegate = self

    }

}

 

extension LocationManager: CLLocationManagerDelegate{

    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {

        if !locationFound{

            guard let location = locations.last else {return}

            locationFound = true

            DispatchQueue.main.async {

                self.location = location

            }

        }

            

         

    }

}

 

#4. MKCoordinateRegion+Extentions.swift

import Foundation

import MapKit

import SwiftUI

 

extension MKCoordinateRegion{

    

    static func defaultRegion() -> MKCoordinateRegion{

        return MKCoordinateRegion(center: CLLocationCoordinate2D(latitude: 37.5666805, longitude: 126.9784147), latitudinalMeters: 500, longitudinalMeters: 500)

    }

    

    func asBindable() -> Binding<MKCoordinateRegion>?{

        return Binding<MKCoordinateRegion>(.constant(self))

    }

}

 

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