获取定位信息

Posted 2020-10-31 初秋的天

先导入

然后在 info.plist 文件中添加 Privacy - Location Always and When In Use Usage Description 和 Privacy - Location When In Use Usage Description 两个就可以了。

 

LocationManager.h

#import <Foundation/Foundation.h>

typedef void(^LocationBlock)(NSString *lat, NSString *lon);

@interface LocationManager : NSObject

+ (instancetype)shareManager;

- (void)getGps:(LocationBlock)block;

@property (nonatomic, copy) NSString *lat;
@property (nonatomic, copy) NSString *lon;

@end

LocationManager.m

#import "LocationManager.h"
#import <CoreLocation/CoreLocation.h>

@interface LocationManager ()<CLLocationManagerDelegate>

@property (nonatomic, strong) CLLocationManager *locManager;

@property (nonatomic, copy) LocationBlock block;

@end

@implementation LocationManager

+ (instancetype)shareManager {
    
    static LocationManager *_manager;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        
        _manager = [[LocationManager alloc] init];
    });
    return _manager;
}

- (instancetype)init {
    
    if (self = [super init]) {
        
        _locManager = [[CLLocationManager alloc] init];
        // 精确度
        [_locManager setDesiredAccuracy:kCLLocationAccuracyBest];
        // 精确到米
        _locManager.distanceFilter = 100;
        _locManager.delegate = self;
        
        if (![CLLocationManager locationServicesEnabled]) { // 判断当前服务是否开启
            
            NSLog(@"开启定位服务");
        } else {
            // 当前状态
            CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
            if (status == kCLAuthorizationStatusNotDetermined) { // 未选中状态时候
                
                [_locManager requestWhenInUseAuthorization];
            }
        }
    }
    return self;
}

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

    CLLocation *newLocation = locations[0];

    // 获取当前所在的城市名

    CLGeocoder *geocoder = [[CLGeocoder alloc] init];

    // 根据经纬度反向地理编译出地址信息

    [geocoder reverseGeocodeLocation:newLocation completionHandler:^(NSArray *array, NSError *error){

        if (array.count > 0){

            CLPlacemark *placemark = [array objectAtIndex:0];

            // 获取城市

            NSString *city = placemark.locality;

            if (!city) {

                // 四大直辖市的城市信息无法通过locality获得，只能通过获取省份的方法来获得（如果city为空，则可知为直辖市）

                city = placemark.administrativeArea;

            }

            NSLog(@"city = %@", city); // 广州市

            NSLog(@"--%@",placemark.name);// 黄埔大道西447-5号

            NSLog(@"++++%@",placemark.subLocality); // 天河区

            NSLog(@"country == %@",placemark.country);// 中国

            NSLog(@"administrativeArea == %@",placemark.administrativeArea); // 广东省

        }

        else if (error == nil && [array count] == 0)

        {

            NSLog(@"No results were returned.");

        }

        else if (error != nil)

        {

            NSLog(@"An error occurred = %@", error);

        }

    }];

    CLLocationCoordinate2D coor = newLocation.coordinate;

    NSString *lat = [NSString stringWithFormat:@"%@", @(coor.latitude)];

    NSString *lon = [NSString stringWithFormat:@"%@", @(coor.longitude)];

    [LocationManager shareManager].lat = lat;

    [LocationManager shareManager].lon = lon;

    self.block(lat, lon);

    // 系统会一直更新数据，直到选择停止更新，因为我们只需要获得一次经纬度即可，所以获取之后就停止更新

    [self.locManager stopUpdatingLocation];

}

- (void)getGps:(LocationBlock)block {
    
    self.block = block;
    // 开始定位
    [self.locManager startUpdatingLocation];
}

@end

 

调用方法：

[[LocationManager shareManager] getGps:^(NSString *lat, NSString *lon) {
        
        NSLog(@"%@, %@", lat, lon);
    }];