ios – 如何使用Xcode 6(Swift)添加引脚(注释)

您还可以为MKAnnotation创建自定义类,以将定制注释添加到地图视图.

MapExampleiOS8的beta演示=>哪个支持Swift 2.1

按照以下步骤：

1.将MapKit.framework添加到项目中.

2.创建Storyboard变量IBOutlet的地图视图控件或在视图控制器中创建它.设置此变量的委托以覆盖它的委托方法：

添加委托签名以查看控制器界面：

class ViewController: UIViewController,MKMapViewDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()

        // Set map view delegate with controller
        self.mapView.delegate = self
    }
}

覆盖其委托方法：

这里我们需要重写mapView(_：viewForAnnotation :)方法来显示地图上的注释引脚.

func mapView(mapView: MKMapView,viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
    if (annotation is MKUserLocation) {
        return nil
    }

    if (annotation.isKindOfClass(CustomAnnotation)) {
        let customAnnotation = annotation as? CustomAnnotation
        mapView.translatesAutoresizingMaskIntoConstraints = false
        var annotationView = mapView.dequeueReusableAnnotationViewWithIdentifier("CustomAnnotation") as MKAnnotationView!

        if (annotationView == nil) {
            annotationView = customAnnotation?.annotationView()
        } else {
            annotationView.annotation = annotation;
        }

        self.addBounceAnimationToView(annotationView)
        return annotationView
    } else {
        return nil
    }
}

4.将MKPointAnnotation添加到地图视图.

您可以在地图视图中添加针脚到位置.为了简单起见,添加代码到viewDidLoad()方法.

override func viewDidLoad() {
    super.viewDidLoad()

    // Set map view delegate with controller
    self.mapView.delegate = self

    let newYorkLocation = CLLocationCoordinate2DMake(40.730872,-74.003066)
    // Drop a pin
    let dropPin = MKPointAnnotation()
    dropPin.coordinate = newYorkLocation
    dropPin.title = "New York City"
    mapView.addAnnotation(dropPin)
}