反地理编码总结

#import "ViewController.h"

#import <CoreLocation/CoreLocation.h>

@interface ViewController ()<CLLocationManagerDelegate>

@property (weak, nonatomic) IBOutlet UILabel *cityLabel;

@property (weak, nonatomic) IBOutlet UILabel *nameLabel;

@property(strong,nonatomic) CLLocationManager * manager;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

   

    //1 coreLocation

    //2 location

   self.manager = [CLLocationManager new];

    // author

    if ([self.manager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {

        [self.manager requestWhenInUseAuthorization];

    }

    //3 delegate

    

    self.manager.delegate =self;

    

    //4 startUpdateLocation

    [self.manager startUpdatingLocation];

    

}

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations{

    //5 geo

    

     CLGeocoder * geo = [CLGeocoder new];

    

     NSLog(@"%@",locations);

    //6 block

     [geo reverseGeocodeLocation:locations.firstObject completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {

         for (CLPlacemark * placeMark in placemarks) {

             if (placeMark.name || placeMark.locality) {

                 NSLog(@"%@ , %@", placeMark.name,placeMark.locality);

                 

                 self.cityLabel.text = placeMark.name;

                 self.nameLabel.text = placeMark.locality;

                 

                 

             }

         }

        

     }];

    [self.manager stopUpdatingLocation];

    

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end