ios8 CLLocationManager开发笔记一 定位

- (void)viewDidLoad

{

    [superviewDidLoad];

   locationManager = [[CLLocationManager   alloc]init];

    self.locationManager.delegate =self;

    self.locationManager.desiredAccuracy =kCLLocationAccuracyBest;//指定需要的精度级别

    self.locationManager.distanceFilter =1000.0f;//设置距离筛选器

// 用于获取plist 里内容，如何不添加此函数很悲剧，不会走delegate 的

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

        [self.locationManagerrequestWhenInUseAuthorization];

    }

    [self.locationManagerstartUpdatingLocation];//启动位置管理器

    

}

在plist 里添加下面字段，可以用来描述定位通途

NSLocationWhenInUseUsageDescription

#pragma mark --  获取经纬度Delegate

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

{

    

    

    

    //纬度

   NSString *   latitudeString = [NSStringstringWithFormat:@"%f",newLocation.coordinate.latitude];

    NSLog(@"xx%@",latitudeString);

  

    //精度

    NSString *   longitudeString = [NSStringstringWithFormat:@"%f",newLocation.coordinate.longitude];

    NSLog(@"yy%@",longitudeString);

    

    

    //海拔

    NSString *  horizontalAccuracyString = [NSStringstringWithFormat:@"%gm",newLocation.horizontalAccuracy];

    

    NSLog(@"hh%@",horizontalAccuracyString);

    

        CLGeocoder *geocoder = [[CLGeocoderalloc]init];

        [geocoder reverseGeocodeLocation: newLocationcompletionHandler:^(NSArray *placemarks,NSError *error) {

    

    

            if (!error) {

            for (CLPlacemark *placemarkin placemarks)

            {

                

//                @property (nonatomic, readonly) NSString *name; // eg. Apple Inc.

//                @property (nonatomic, readonly) NSString *thoroughfare; // street address, eg. 1 Infinite Loop

//                @property (nonatomic, readonly) NSString *subThoroughfare; // eg. 1

//                @property (nonatomic, readonly) NSString *locality; // city, eg. Cupertino

//                @property (nonatomic, readonly) NSString *subLocality; // neighborhood, common name, eg. Mission District

//                @property (nonatomic, readonly) NSString *administrativeArea; // state, eg. CA

//                @property (nonatomic, readonly) NSString *subAdministrativeArea; // county, eg. Santa Clara

//                @property (nonatomic, readonly) NSString *postalCode; // zip code, eg. 95014

//                @property (nonatomic, readonly) NSString *ISOcountryCode; // eg. US

//                @property (nonatomic, readonly) NSString *country; // eg. United States

//                @property (nonatomic, readonly) NSString *inlandWater; // eg. Lake Tahoe

//                @property (nonatomic, readonly) NSString *ocean; // eg. Pacific Ocean

//                @property (nonatomic, readonly) NSArray *areasOfInterest; // eg. Golden Gate Park

//                @end

             

                _countryLabel.text   =  [placemarkcountry];      //哪个国家

                _provinciaLabel.text =   [placemark administrativeArea];

                _cityLabel.text      =  [placemarklocality];     //哪个城市

                _subLocalityLabel.text    =   [placemark subLocality];//哪个区

                _streetLabel.text    =  [placemarkthoroughfare]; //哪个街道

                

                NSLog(@"%@", [[placemarkaddressDictionary]description]);

            }

            }

        else

            {

                NSLog(@"There was a reverse geocoding error\n%@",

                      [error localizedDescription]);

            }

            }

         ];

    

    _latitudeLabel.text = latitudeString;

    _longitudeLabel.text = longitudeString;

    _elevationLabel.text = horizontalAccuracyString;

}

#pragma mark -- 获取经纬度失败delegate

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {

    

    NSLog(@"locError:%@", error);

    

}

-(void)dealloc

{

    self.locationManager.delegate =nil;

}

- (void)didReceiveMemoryWarning

{

    [superdidReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}