iphone - 前往/缩放至当前位置功能(MapKit)

Question

我有一个mapView，它使用viewDidLoad缩放到当前位置:

#define METERS_PER_MILE 1609.344

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{
    [super viewDidLoad];

    mapView.showsUserLocation=TRUE;

    // zoom to  a specific area
    CLLocationCoordinate2D zoomLocation;
    zoomLocation.latitude = -28.994167;
    zoomLocation.longitude = 134.866944;

    MKCoordinateRegion viewRegion = MKCoordinateRegionMakeWithDistance(zoomLocation, 1900*METERS_PER_MILE, 1900*METERS_PER_MILE);
    MKCoordinateRegion adjustedRegion = [mapView regionThatFits:viewRegion];    

    // make sure the Google water mark is always visible
    mapView.autoresizingMask =
    (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);

    [mapView setRegion:adjustedRegion animated:YES];        

    mapView.delegate=self;

    searchBar.delegate = self;
}

这很好用。我添加了一个搜索栏和一个跳转到特定地址位置的功能。这也很好用。我现在想添加一个按钮来跳回当前位置。你能帮我一下吗？

干杯

Answer 1

您需要点击该按钮将 map 中心设置为当前位置。说吧，像这样:

- (IBAction)showCurrentLocation {        
    [mapView setCenterCoordinate:mapView.userLocation.location.coordinate animated:YES];
}