Question

同样的方法在ios 6中运行良好我使用的是didUpdateToLocation方法，其实现如下： -

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation     *)Location fromLocation:(CLLocation *)oldLocation
{
if(appDelegate->mapView )
{
    if(Span)
    {        
       [appDelegate->mapView  setRegion:MKCoordinateRegionMake(Location.coordinate, MKCoordinateSpanMake(0.01f, 0.01f)) animated:YES];

        Span = NO;
    }
    else
    {  
       [appDelegate->mapView  setCenterCoordinate:Location.coordinate animated:YES];
    }
}

}

请建议应该做什么，以便跟踪用户的位置，用户也应该能够在地图上放大和缩小。地图也应该围绕当前的GPS位置。

Answer 1

我使用它来在加载地图时缩放用户位置。

- (void)mapViewDidFinishLoadingMap:(MKMapView *)mapView {
    NSLog(@"mapViewDidFinishLoadingMap");

    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 2 * NSEC_PER_SEC), dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        [self zoomMapView:mapView ToUserLocation:mapView.userLocation.coordinate];
    }); }


-(void)zoomMapView:(MKMapView*)mapView ToUserLocation:(CLLocationCoordinate2D)coordinate {

    if (!isZoomed) {
        isZoomed=TRUE;
    MKCoordinateRegion region = mapView.region;
    MKCoordinateSpan span;

    region.center = coordinate;
    span.latitudeDelta = 0.02;
    span.longitudeDelta = 0.02;
    region.span=span;

    [mapView setMapType:MKMapTypeStandard];
    [mapView setZoomEnabled:YES];
    [mapView setScrollEnabled:YES];
    [mapView setShowsUserLocation:YES];
    [mapView setRegion:region animated:YES];
    } }

只要您想缩放用户的当前位置，就可以调用-(void)zoomMapView:(MKMapView*)mapView ToUserLocation:(CLLocationCoordinate2D)coordinate方法。

setcentercoordinate不允许在ios 7中放大和缩小

1 个答案: