ios - 在屏幕加载时启动 map 功能。 iOS, swift

Question

我正在尝试在屏幕加载时自动启动 map 。

这能做到吗？在 View 上启动此功能确实出现了。

func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {

    if let anno = view.annotation {
        let place = MKPlacemark(coordinate: anno.coordinate)
        let destination = MKMapItem(placemark: place)
        destination.name = "Vehicle Sighting"
        let regionDistance: CLLocationDistance = 1000
        let regionSpan = MKCoordinateRegionMakeWithDistance(anno.coordinate, regionDistance, regionDistance)

        let options = [MKLaunchOptionsMapCenterKey: NSValue (mkCoordinate: regionSpan.center), MKLaunchOptionsMapSpanKey: NSValue(mkCoordinateSpan: regionSpan.span), MKLaunchOptionsDirectionsModeKey: MKLaunchOptionsDirectionsModeDriving] as [String : Any]

        MKMapItem.openMaps(with: [destination], launchOptions: options)
    }
}

Answer 1

试试这个功能，你只需要传递坐标和地名，这个有效，我在几个项目中使用这个

static func openMapsAppWithLocation(coordinates:CLLocationCoordinate2D,placeName:String)
{
    let regionDistance:CLLocationDistance = 10000
    let regionSpan = MKCoordinateRegionMakeWithDistance(coordinates, regionDistance, regionDistance)
    let options = [
        MKLaunchOptionsMapCenterKey: NSValue(mkCoordinate: regionSpan.center),
        MKLaunchOptionsMapSpanKey: NSValue(mkCoordinateSpan: regionSpan.span)
    ]
    let placemark = MKPlacemark(coordinate: coordinates, addressDictionary: nil)
    let mapItem = MKMapItem(placemark: placemark)
    mapItem.name = placeName
    mapItem.openInMaps(launchOptions: options)
}

希望对你有帮助