iPhone sdk位置更改通知

Question

我打算在iPhone上進行GPS定位。你能告訴我關於GPS的信息（代表，方法等）。

Answer 1

聲明CLLocation

CLLocationManager *locManager; 

的位置經理在函數

self.locManager = [[CLLocationManager alloc] init]; 
locManager.delegate = self; 
locManager.desiredAccuracy = kCLLocationAccuracyBest; 
[locManager startUpdatingLocation]; // This Method will call the didUpdateToLocation Delegate 
[locManager stopUpdatingLocation]; //This Methods stops the GPS from updating 

位置管理委託

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation 
{ 
//Do actions when the GPS is Updating 
} 
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error 
{ 
    NSLog(@"Error in GPS: %@",error); 
} 

不要忘記，包括CLLocationManagerDelegate在.h文件中，並添加CoreLocation框架到您的項目

Answer 2

查閱CLLocationManager和CLLocationManagerDelegate的文檔。如果你仍然有特定的問題，那就回來問問他們。