iOS定位操作,獲取當前位置

一、導入CoreLocation.framework

二、#import <CoreLocation/CoreLocation.h>

三、聲明代理 <CLLocationManagerDelegate>

四、代碼實現

1、聲明

CLLocationManager *locationManager;//定義Manager
// 判斷定位操作是否被允許
if([CLLocationManager locationServicesEnabled]) {
    CLLocationManager *locationManager = [[[CLLocationManager alloc] init] autorelease];

     self.locationManager.delegate = self;
}else {
     //提示用戶無法進行定位操作
}

// 開始定位
[locationManager startUpdatingLocation];

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

    //latitude和lontitude均為NSString型變量
        //緯度
    self.latitude = [NSString  stringWithFormat:@"%.4f", newLocation.coordinate.latitude];

        //經度
    self.longitude = [NSString stringWithFormat:@"%.4f",                           newLocation.coordinate.longitude];

}

-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
    //此處locations存儲了持續更新的位置坐標值，取最后一個值為最新位置，如果不想讓其持續更新位置，則在此方法中獲取到一個值之后讓locationManager stopUpdatingLocation
    CLLocation *currentLocation = [locations lastObject];

    CLLocationCoordinate2D coor = currentLocation.coordinate;
    self.latitude =  coor.latitude;
    self.longitude = coor.longitude;

    //[self.locationManager stopUpdatingLocation];

}

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

  if (error.code == kCLErrorDenied) {
      // 提示用戶出錯原因，可按住Option鍵點擊 KCLErrorDenied的查看更多出錯信息，可打印error.code值查找原因所在
  }
}