iOS定位

#import <CoreLocation/CoreLocation.h>   使用到的頭檔案  要引入CoreLocation這個包
<CLLocationManagerDelegate>             使用的代理名稱
//1.使用定位服務
    //設定app有通路定位服務的權限
    //在使用應用期間 / 始終(app在背景)
    //info.plist檔案添加以下兩條(或者其中一條):
    //NSLocationWhenInUseUsageDescription 在使用應用期間
    //NSLocationAlwaysUsageDescription  始終
    //2.LocationManager 對象管理相關的定位服務
    _manager = [[CLLocationManager alloc] init];
    //manager判斷: 手機是否開啟定位 / app是否有通路定位的權限
    //[CLLocationManager locationServicesEnabled]; //手機是否開啟定位
    //[CLLocationManager authorizationStatus];  //app通路定位的權限的狀态
    if (![CLLocationManager locationServicesEnabled] || [CLLocationManager authorizationStatus] != kCLAuthorizationStatusAuthorizedWhenInUse) {
        [_manager requestWhenInUseAuthorization]; //向使用者請求通路定位服務的權限
    }
    _manager.delegate = self;
    _manager.desiredAccuracy = kCLLocationAccuracyBest;
    _manager.distanceFilter = 1.0f;
    [_manager startUpdatingLocation];

//定位代理經緯度回調
-(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
    [_manager stopUpdatingLocation];
    CLGeocoder * geoCoder = [[CLGeocoder alloc] init];
    [geoCoder reverseGeocodeLocation:newLocation completionHandler:^(NSArray *placemarks, NSError *error) {
        for (CLPlacemark * placemark in placemarks) {
            NSDictionary *test = [placemark addressDictionary];
            //  Country(國家)  State(城市)  SubLocality(區) Name全稱
            NSLog(@"%@", [test objectForKey:@"Name"]);
        }
    }];
}