iOS에서 사용자로부터 현재 위치를 가져오는 방법

iOS에서 사용자로부터 현재 위치를 가져오는 방법

iOS에서 사용자로부터 현재 위치를 가져오려면 어떻게 해야 합니까?

Red Blue Thing의 답변은 저에게 꽤 잘 먹혔습니다.여기 제가 어떻게 했는지에 대한 몇 가지 샘플 코드가 있습니다.

머리글

#import <UIKit/UIKit.h>
#import <CoreLocation/CoreLocation.h>

@interface yourController : UIViewController <CLLocationManagerDelegate> {
    CLLocationManager *locationManager;
}

@end

기본 파일

init 메서드에서

locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.distanceFilter = kCLDistanceFilterNone;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager startUpdatingLocation];

콜백 함수

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
    NSLog(@"OldLocation %f %f", oldLocation.coordinate.latitude, oldLocation.coordinate.longitude);
    NSLog(@"NewLocation %f %f", newLocation.coordinate.latitude, newLocation.coordinate.longitude);
}

iOS 6

iOS 6에서는 대리자 기능이 더 이상 사용되지 않았습니다.새 대리인은

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations

따라서 새 위치를 사용할 수 있습니다.

[locations lastObject]

iOS 8

iOS 8에서 위치 업데이트를 시작하기 전에 권한을 명시적으로 요청해야 합니다.

locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.distanceFilter = kCLDistanceFilterNone;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
    [self.locationManager requestWhenInUseAuthorization];

[locationManager startUpdatingLocation];

또는 키에 대한 문자열을 앱의 Info.plist에 추가해야 합니다.그렇지 않으면 다음으로 전화합니다.startUpdatingLocation무시되고 대리인은 콜백을 받지 못합니다.

그리고 마지막에 위치 읽기를 마치면 적절한 위치에서 위치 업데이트를 중지합니다.

[locationManager stopUpdatingLocation];

iOS 6에서,

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation

사용되지 않습니다.

대신 다음 코드 사용

- (void)locationManager:(CLLocationManager *)manager
     didUpdateLocations:(NSArray *)locations {
    CLLocation *location = [locations lastObject];
    NSLog(@"lat%f - lon%f", location.coordinate.latitude, location.coordinate.longitude);
}

iOS 6~8의 경우 위의 방법이 여전히 필요하지만, 당신은 승인을 처리해야 합니다.

_locationManager = [CLLocationManager new];
_locationManager.delegate = self;
_locationManager.distanceFilter = kCLDistanceFilterNone;
_locationManager.desiredAccuracy = kCLLocationAccuracyBest;

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0 &&
    [CLLocationManager authorizationStatus] != kCLAuthorizationStatusAuthorizedWhenInUse
    //[CLLocationManager authorizationStatus] != kCLAuthorizationStatusAuthorizedAlways
   ) {
     // Will open an confirm dialog to get user's approval 
    [_locationManager requestWhenInUseAuthorization]; 
    //[_locationManager requestAlwaysAuthorization];
} else {
    [_locationManager startUpdatingLocation]; //Will update location immediately 
}

사용자의 승인을 처리하는 위임 메서드입니다.

#pragma mark - CLLocationManagerDelegate
- (void)locationManager:(CLLocationManager*)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{
    switch (status) {
    case kCLAuthorizationStatusNotDetermined: {
        NSLog(@"User still thinking..");
    } break;
    case kCLAuthorizationStatusDenied: {
        NSLog(@"User hates you");
    } break;
    case kCLAuthorizationStatusAuthorizedWhenInUse:
    case kCLAuthorizationStatusAuthorizedAlways: {
        [_locationManager startUpdatingLocation]; //Will update location immediately
    } break;
    default:
        break;
    }
}

CoreLocation 프레임워크를 사용하여 사용자에 대한 위치 정보에 액세스할 수 있습니다.CLLocationManager 개체를 인스턴스화하고 비동기 startUpdatingLocation 메시지를 호출해야 합니다.제공하는 CLLocationManagerDelegate를 통해 사용자의 위치에 대한 콜백을 받을 수 있습니다.

이 간단한 단계를 사용해 보십시오.

참고: 시뮬레이터 수단을 사용하는 경우 장치 위치 위도 및 경도를 확인하십시오.기본적으로 없음만 표시됩니다.

1단계: 가져오기CoreLocation. File.h 의 프레임워크

#import <CoreLocation/CoreLocation.h>

2단계: 대리자 CLLocationManagerDelegate 추가

@interface yourViewController : UIViewController<CLLocationManagerDelegate>
{
    CLLocationManager *locationManager;
    CLLocation *currentLocation;
}

3단계: 클래스 파일에 이 코드 추가

- (void)viewDidLoad
{
    [super viewDidLoad];
    [self CurrentLocationIdentifier]; // call this method
}

4단계: 현재 위치를 탐지하는 방법

//------------ Current Location Address-----
-(void)CurrentLocationIdentifier
{
    //---- For getting current gps location
    locationManager = [CLLocationManager new];
    locationManager.delegate = self;
    locationManager.distanceFilter = kCLDistanceFilterNone;
    locationManager.desiredAccuracy = kCLLocationAccuracyBest;
    [locationManager startUpdatingLocation];
    //------
}

5단계: 이 방법을 사용하여 위치 가져오기

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
    currentLocation = [locations objectAtIndex:0];
    [locationManager stopUpdatingLocation];
    CLGeocoder *geocoder = [[CLGeocoder alloc] init] ;
    [geocoder reverseGeocodeLocation:currentLocation completionHandler:^(NSArray *placemarks, NSError *error)
     {
         if (!(error))
         {
             CLPlacemark *placemark = [placemarks objectAtIndex:0];
             NSLog(@"\nCurrent Location Detected\n");
             NSLog(@"placemark %@",placemark);
             NSString *locatedAt = [[placemark.addressDictionary valueForKey:@"FormattedAddressLines"] componentsJoinedByString:@", "];
             NSString *Address = [[NSString alloc]initWithString:locatedAt];
             NSString *Area = [[NSString alloc]initWithString:placemark.locality];
             NSString *Country = [[NSString alloc]initWithString:placemark.country];
             NSString *CountryArea = [NSString stringWithFormat:@"%@, %@", Area,Country];
             NSLog(@"%@",CountryArea);
         }
         else
         {
             NSLog(@"Geocode failed with error %@", error);
             NSLog(@"\nCurrent Location Not Detected\n");
             //return;
             CountryArea = NULL;
         }
         /*---- For more results 
         placemark.region);
         placemark.country);
         placemark.locality); 
         placemark.name);
         placemark.ocean);
         placemark.postalCode);
         placemark.subLocality);
         placemark.location);
          ------*/
     }];
}

Swift에서(iOS 8+용).

정보.plist

첫 번째 일부터.하여 info.plist.plist .NSLocationWhenInUseUsageDescription또는NSLocationAlwaysUsageDescription어떤 종류의 서비스를 요청하는지에 따라

코드

import Foundation
import CoreLocation

class LocationManager: NSObject, CLLocationManagerDelegate {
    
    let manager: CLLocationManager
    var locationManagerClosures: [((userLocation: CLLocation) -> ())] = []
    
    override init() {
        self.manager = CLLocationManager()
        super.init()
        self.manager.delegate = self
    }
    
    //This is the main method for getting the users location and will pass back the usersLocation when it is available
    func getlocationForUser(userLocationClosure: ((userLocation: CLLocation) -> ())) {
        
        self.locationManagerClosures.append(userLocationClosure)
        
        //First need to check if the apple device has location services availabel. (i.e. Some iTouch's don't have this enabled)
        if CLLocationManager.locationServicesEnabled() {
            //Then check whether the user has granted you permission to get his location
            if CLLocationManager.authorizationStatus() == .NotDetermined {
                //Request permission
                //Note: you can also ask for .requestWhenInUseAuthorization
                manager.requestWhenInUseAuthorization()
            } else if CLLocationManager.authorizationStatus() == .Restricted || CLLocationManager.authorizationStatus() == .Denied {
                //... Sorry for you. You can huff and puff but you are not getting any location
            } else if CLLocationManager.authorizationStatus() == .AuthorizedWhenInUse {
                // This will trigger the locationManager:didUpdateLocation delegate method to get called when the next available location of the user is available
                manager.startUpdatingLocation()
            }
        }
        
    }
    
    //MARK: CLLocationManager Delegate methods
    
    @objc func locationManager(manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
        if status == .AuthorizedAlways || status == .AuthorizedWhenInUse {
            manager.startUpdatingLocation()
        }
    }
    
    func locationManager(manager: CLLocationManager, didUpdateToLocation newLocation: CLLocation, fromLocation oldLocation: CLLocation) {
        //Because multiple methods might have called getlocationForUser: method there might me multiple methods that need the users location.
        //These userLocation closures will have been stored in the locationManagerClosures array so now that we have the users location we can pass the users location into all of them and then reset the array.
        let tempClosures = self.locationManagerClosures
        for closure in tempClosures {
            closure(userLocation: newLocation)
        }
        self.locationManagerClosures = []
    }
}

사용.

self.locationManager = LocationManager()
self.locationManager.getlocationForUser { (userLocation: CLLocation) -> () in
            print(userLocation)
        }

Xcode 설명서에는 풍부한 지식과 샘플 앱이 있습니다. 위치 인식 프로그래밍 가이드를 참조하십시오.

LocateMe 샘플 프로젝트는 CLLocationManager의 다양한 정확도 설정을 수정하는 효과를 보여줍니다.

iOS 11.x Swift 4.0 Info.plist에는 이 두 가지 속성이 필요합니다.

<key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
<string>We're watching you</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>Watch Out</string>

그리고 이 코드는... CLLocationManagerDelegate를 확인하는 것입니다.

let locationManager = CLLocationManager()

// MARK location Manager delegate code + more

func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
    switch status {
    case .notDetermined:
        print("User still thinking")
    case .denied:
        print("User hates you")
    case .authorizedWhenInUse:
            locationManager.stopUpdatingLocation()
    case .authorizedAlways:
            locationManager.startUpdatingLocation()
    case .restricted:
        print("User dislikes you")
    }

그리고 물론 이 코드도 viewDidLoad()에 넣을 수 있습니다.

locationManager.delegate = self
locationManager.requestAlwaysAuthorization()
locationManager.distanceFilter = kCLDistanceFilterNone
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestLocation()

그리고 이 두 가지는 당신이 자리에서 일어나야 하는 것을 덜어주기 위해 위치를 요청합니다 :)

func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
    print(error)
}

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

당신은 제가 쓴 이 서비스를 이용해서 모든 것을 처리할 수 있습니다.

이 서비스는 사용 권한을 요청하고 CLLocation Manager를 처리하므로 사용자가 필요하지 않습니다.

다음과 같이 사용:

LocationService.getCurrentLocationOnSuccess({ (latitude, longitude) -> () in
    //Do something with Latitude and Longitude

    }, onFailure: { (error) -> () in

      //See what went wrong
      print(error)
})

Swift 5의 경우 위치를 확인할 수 있는 짧은 강의가 있습니다.

class MyLocationManager: NSObject, CLLocationManagerDelegate {
    let manager: CLLocationManager

    override init() {
        manager = CLLocationManager()
        super.init()
        manager.delegate = self
        manager.distanceFilter = kCLDistanceFilterNone
        manager.desiredAccuracy = kCLLocationAccuracyBest
        manager.requestWhenInUseAuthorization()
        manager.startUpdatingLocation()
    }

    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        // do something with locations
    }
}

언급URL : https://stackoverflow.com/questions/4152003/how-can-i-get-current-location-from-user-in-ios