iPhone GPS定位

我想在iPhone上用objective C获得我的经度和纬度。有人能指导我如何通过编程获得这些坐标吗

#import <Foundation/Foundation.h>

@class CLLocationManager;

@interface CLLocationController : NSObject {
    CLLocationManager *locationManager; 
}

@property (nonatomic, retain) CLLocationManager *locationManager; 

@end

---

使用CLLocationManager，将对象设置为委托并开始获取更新

self.locationManager = [[[CLLocationManager alloc] init] autorelease]; 
self.locationManager.delegate = self; 
[self.locationManager startUpdatingLocation]; 

然后实现委托：

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation*)newLocation fromLocation:(CLLocation *)oldLocation { 
  NSLog([NSString stringWithFormat:@"%3.5f", newLocation.coordinate.latitude]); 
  NSLog([NSString stringWithFormat:@"%3.5f", newLocation.coordinate.longitude]); 
} 

---

developer.apple.com阅读文档

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation*)newLocation fromLocation:(CLLocation *)oldLocation { 
  NSLog([NSString stringWithFormat:@"%3.5f", newLocation.coordinate.latitude]); 
  NSLog([NSString stringWithFormat:@"%3.5f", newLocation.coordinate.longitude]); 
}