MKMapView放大到錯誤的地區

Question

我有三個視圖是ViewController視圖的子視圖。三個標籤切換其各自的知名度。在「我附近」功能中，我只想顯示10英里範圍內的用戶當前位置內的項目。

在ViewController.h

@property (weak, nonatomic) IBOutlet MKMapView *nearMeMapView; 
@property (strong, nonatomic) CLLocationManager *locationManager; 

在ViewController.m

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    self.locationManager.delegate = self; 
    self.nearMeMapView.delegate = self; 
} 

- (IBAction)nearMeTap:(id)sender 
{ 
    self.nearMeMapView.hidden = NO; 
    self.locationManager.desiredAccuracy = kCLLocationAccuracyBest; 
    self.locationManager.distanceFilter = kCLDistanceFilterNone; 
    [self.locationManager startUpdatingLocation]; 
    NSLog(@"near me tapped") 
} 

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation 
{ 
    NSLog(@"didUpdateToLocation: %@", newLocation); 
    CLLocationCoordinate2D zoomLocation; 
    zoomLocation.latitude = newLocation.coordinate.latitude; 
    zoomLocation.longitude= newLocation.coordinate.latitude; 
    MKCoordinateRegion viewRegion = MKCoordinateRegionMakeWithDistance(zoomLocation, 10*METERS_PER_MILE, 10*METERS_PER_MILE); 
    [self.nearMeMapView setRegion:viewRegion animated:YES]; 
} 

無論如何，問題是被正確地檢測到所述設備的該位置，但MapView的縮放和動畫完全錯誤的位置。

Answer 1

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation 
{ 
    NSLog(@"didUpdateToLocation: %@", newLocation); 
    CLLocationCoordinate2D zoomLocation; 
    zoomLocation.latitude = newLocation.coordinate.latitude; 
    //This was set wrong in your function 
    zoomLocation.longitude= newLocation.coordinate.longitude; 
    MKCoordinateRegion viewRegion = MKCoordinateRegionMakeWithDistance(zoomLocation, 10*METERS_PER_MILE, 10*METERS_PER_MILE); 
    [self.nearMeMapView setRegion:viewRegion animated:YES]; 
} 

的註釋行是你的問題 你設置你的zoom.longitude到緯度位置！