LocationMgr

@interface LocationMgr () <CLLocationManagerDelegate>

@property (strong, nonatomic) CLLocationManager* locationManager;
@property (strong, nonatomic) CLGeocoder* geocoder;

@property (assign, nonatomic, getter=isRunning) BOOL running;

@end

@implementation LocationMgr

- (id) init
{
    self = [super init];
    if (self) {
        _geocoder = [[CLGeocoder alloc] init];
        
        _locationManager = [[CLLocationManager alloc]init];
        
        [_locationManager requestWhenInUseAuthorization];
        //设置代理
        _locationManager.delegate = self;
        //设置位置精度
        _locationManager.desiredAccuracy = kCLLocationAccuracyBest;
        //设置每隔100米更新位置
        _locationManager.distanceFilter = 100;
    }
    return self;
}

+ (id) shareInstance
{
    static dispatch_once_t onceToken;
    static LocationMgr* mgr;
    dispatch_once(&onceToken, ^{
        mgr = self.new;
    });
    return mgr;
}

/**
 *  <#Description#>
 *
 *  @param completeBlock 任务完成的回调
 */
- (void)currentLocationInfo:(LocationMgrTaskCompleteBlock)completeBlock error:(NSError *__autoreleasing *)error
{
    if ([self isRunning]) {
        NSLog(@"LocationMgr is Busy......");
        
        if (error) {
            *error = [NSError errorWithDomain:@"LocationMgr" code:1 userInfo:[NSDictionary dictionaryWithObjectsAndKeys:@"定位服务繁忙，请稍后再试", @"message", nil]];
        }
        return;
    }
    
    _running = YES;
    
    if ([CLLocationManager authorizationStatus] < kCLAuthorizationStatusAuthorized ) {
        if (error) {
            *error = [NSError errorWithDomain:@"LocationMgr" code:1 userInfo:[NSDictionary dictionaryWithObjectsAndKeys:@"定位服务未授权，请在设置中开启授权", @"message", nil]];
        }
    }
    
    if ([_locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)])
    {
        [_locationManager requestWhenInUseAuthorization];
    }
    
    [_locationManager startUpdatingLocation];
    
    _completeBlock = completeBlock;
}

/*
 *  locationManager:didUpdateToLocation:fromLocation:
 *
 *  Discussion:
 *    Invoked when a new location is available. oldLocation may be nil if there is no previous location
 *    available.
 *
 *    This method is deprecated. If locationManager:didUpdateLocations: is
 *    implemented, this method will not be called.
 */
-(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
    [_geocoder reverseGeocodeLocation:newLocation completionHandler:^(NSArray *placemarks, NSError *error) {
        if (error == nil &&[placemarks count] > 0){
            CLPlacemark *placemark = [placemarks objectAtIndex:0];
            /* We received the results */
            NSLog(@"Country = %@", placemark.country);
            NSLog(@"Postal Code = %@", placemark.postalCode);
            NSLog(@"Locality = %@", placemark.locality);
            NSLog(@"dic = %@", placemark.addressDictionary );
            NSLog(@"dic FormattedAddressLines= %@", [placemark.addressDictionary objectForKey:@"FormattedAddressLines"]);
            NSLog(@"dic Name = %@", [placemark.addressDictionary objectForKey:@"Name"]);
            NSLog(@"dic State = %@", [placemark.addressDictionary objectForKey:@"State"]);
            NSLog(@"dic Street = %@", [placemark.addressDictionary objectForKey:@"Street"]);
            NSLog(@"dic SubLocality= %@", [placemark.addressDictionary objectForKey:@"SubLocality"]);
            NSLog(@"dic SubThoroughfare= %@", [placemark.addressDictionary objectForKey:@"SubThoroughfare"]);
            NSLog(@"dic Thoroughfare = %@", [placemark.addressDictionary objectForKey:@"Thoroughfare"]);
            
            if (_completeBlock) {
                _completeBlock(@{@"country":placemark.country});
            }
            
            [_locationManager stopUpdatingLocation];
        }
        else if (error == nil &&
                 [placemarks count] == 0){
            NSLog(@"No results were returned.");
        }
        else if (error != nil){
            NSLog(@"An error occurred = %@", error);
        }
        _running = NO;
    }];
}