iOS 根据经纬度反查 地名

在iOS中 
定位自己的当前位置，知道经纬度很简单，然后有些时候要知道地名，apple 也有了现成的api直接调用就可以（以下方法是iOS5.0以上的，现在基本都忽略了 iOS5.0以下的设备）

#pragma mark -

#pragma mark CLLocationManagerDelegate

 

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

 

  

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

    [geocoder reverseGeocodeLocation:newLocation

                   completionHandler:^(NSArray *placemarks,

                                       NSError *error)

    {

        CLPlacemark *placemark=[placemarks objectAtIndex:0];

        NSLog(@"name:%@\n country:%@\n postalCode:%@\n ISOcountryCode:%@\n ocean:%@\n inlandWater:%@\n locality:%@\n subLocality:%@ \n administrativeArea:%@\n subAdministrativeArea:%@\n thoroughfare:%@\n subThoroughfare:%@\n",

              placemark.name,

              placemark.country,

               placemark.postalCode,

               placemark.ISOcountryCode,

               placemark.ocean,

               placemark.inlandWater,

               placemark.administrativeArea,

               placemark.subAdministrativeArea,

              placemark.locality,

               placemark.subLocality,

               placemark.thoroughfare,

               placemark.subThoroughfare);

     }];

	if (wasFound) return;

    wasFound = YES;

    

	CLLocationCoordinate2D loc = [newLocation coordinate];

	

	strLatitude = [NSString stringWithFormat: @"%f", loc.latitude];

	strLongitude = [NSString stringWithFormat: @"%f", loc.longitude];

	

	NSLog(@"strLatitude==%@,strLongitude==%@",strLatitude,strLongitude);

	 

}

 

 log 是：

 

 name:市民广场

 country:中国

 postalCode:(null)

 ISOcountryCode:CN

 ocean:(null)

 inlandWater:(null)

 locality:广东省

 subLocality:(null) 

 administrativeArea:深圳市

 subAdministrativeArea:福田区

 thoroughfare:市民广场

 subThoroughfare:(null)

 

 

第二种方法就是 我们已经知道了一个经纬度 然后反查地名：

自己写个方法：

 

-(void)change{

    //22.540681,=114.061324

    CLLocationCoordinate2D coordinate;

    coordinate.latitude =  22.540681;

    coordinate.longitude = 114.061324;

    CLLocation *newLocation=[[CLLocation alloc]initWithLatitude:coordinate.latitude longitude: coordinate.longitude];

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

    [geocoder reverseGeocodeLocation:newLocation

                   completionHandler:^(NSArray *placemarks,

                                       NSError *error)

     {

         CLPlacemark *placemark=[placemarks objectAtIndex:0];

         NSLog(@"我我的:%@\n country:%@\n postalCode:%@\n ISOcountryCode:%@\n ocean:%@\n inlandWater:%@\n locality:%@\n subLocality:%@ \n administrativeArea:%@\n subAdministrativeArea:%@\n thoroughfare:%@\n subThoroughfare:%@\n",

               placemark.name,

               placemark.country,

               placemark.postalCode,

               placemark.ISOcountryCode,

               placemark.ocean,

               placemark.inlandWater,

               placemark.administrativeArea,

               placemark.subAdministrativeArea,

               placemark.locality,

               placemark.subLocality,

               placemark.thoroughfare,

               placemark.subThoroughfare);

     }];



}

nslog 的结果和上面的一样。