下落銷

Question

好吧，這是我在使用CLLoactionManager

嘗試

- (void)viewDidLoad { 

    [super viewDidLoad]; 
    mapView=[[MKMapView alloc] initWithFrame:self.view.frame]; 
    //mapView.showsUserLocation=TRUE; 
    mapView.delegate=self; 
    [self.view insertSubview:mapView atIndex:0]; 


    CLLocationManager *locationManager=[[CLLocationManager alloc] init]; 
    locationManager.delegate=self; 
    locationManager.desiredAccuracy=kCLLocationAccuracyNearestTenMeters; 

    [locationManager startUpdatingLocation]; 
} 

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

    mStoreLocationButton.hidden=FALSE; 
    location=newLocation.coordinate; 
    //One location is obtained.. just zoom to that location 

    MKCoordinateRegion region; 
    region.center=location; 
    MKCoordinateSpan span; 
    span.latitudeDelta=0.01; 
    span.longitudeDelta=0.01; 
    region.span=span; 

    [mapView setRegion:region animated:TRUE];  
} 

我的問題是[locationManager startUpdatingLocation];似乎不火的一個方法。我錯過了什麼？我已經嘗試在第二種方法中設置斷點，但他們從未捕獲。顯然它沒有被使用。

Answer 1

你應該看看使用CLLocationManager來獲取當前位置，以正確的座標給你的MKMapView。

CLLocationManager *locationManager = [[CLLocationManager alloc] init]; 
MKMapView *map = [[MKMapView alloc] init]; 

[locationManager startUpdatingLocation]; 

CLLocationCoordinate2D _coordinate = locationManager.location.coordinate; 
MKCoordinateRegion extentsRegion = MKCoordinateRegionMakeWithDistance(_coordinate, 800, 800); 

[map setRegion:extentsRegion animated:YES]; 

Answer 2

This看起來是一個很好的開始。爲了放下一個別針，你需要知道座標。使用- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation將幫助您獲取用戶的位置，以便您可以創建一個MKAnnotation和MKPinAnnotationViews。一旦你開始，它非常簡單。