如何使用标注按钮打开新的 uiviewcontroller。 （迅速）

Question

我在地图上放置了几个图钉，例如对应于不同的桥梁位置。当点击显示它们的标题和副标题时，这些引脚中的每一个都有自己的注释。我在这些注释中添加了一个信息按钮。但是我不知道如何打开一个新的 UiViewController，它会根据按下的桥信息按钮来改变 UiViewController 上显示的信息。

所以基本上我需要知道如何： 1：按下注解中的信息按钮时打开一个UiViewController。 2：改变 UiViewController 花费的信息，即按下了哪些桥梁信息按钮。

这是我目前所拥有的：

     mapView.delegate = self



    //bridges
    var Bridge1 = CLLocationCoordinate2DMake(48.60,2.90)
    var bridge2 = CLLocationCoordinate2DMake(48.61, 2.91)
    var bridge3 = CLLocationCoordinate2DMake(48.62, 2.92)
    var bridge4 = CLLocationCoordinate2DMake(48.63, 2.93)
    var bridge5 = CLLocationCoordinate2DMake(48.64, 2.94)
    var bridge6 = CLLocationCoordinate2DMake(48.65, 2.95)


    var span = MKCoordinateSpanMake(0.4, 0.4)
    var region = MKCoordinateRegion(center: Bridge1, span: span)
    mapView.setRegion(region, animated: true)

    var Bridge1pin = MKPointAnnotation()
    Bridge1pin.coordinate = Bridge1
    Bridge1pin.title = "Bridge1"
    Bridge1pin.subtitle = "This is bridge 1"
    mapView.addAnnotation(Bridge1pin)

    var bridge2pin = MKPointAnnotation()
    bridge2pin.coordinate = bridge2
    bridge2pin.title = "Bridge2"
    bridge2pin.subtitle = "This is bridge 2"
    mapView.addAnnotation(bridge2pin)

    var bridge3pin = MKPointAnnotation()
    bridge3pin.coordinate = bridge3
    bridge3pin.title = "Bridge3"
    bridge3pin.subtitle = "This is bridge 3"
    mapView.addAnnotation(bridge3pin)

    var bridge4pin = MKPointAnnotation()
    bridge4pin.coordinate = bridge4
    bridge4pin.title = "Bridge4"
    bridge4pin.subtitle = "This is bridge 4"
    mapView.addAnnotation(bridge4pin)

    var bridge5pin = MKPointAnnotation()
    bridge5pin.coordinate = bridge5
    bridge5pin.title = "bridge5"
    bridge5pin.subtitle = "hello this is bridge 5"
    mapView.addAnnotation(bridge5pin)

    var bridge6pin = MKPointAnnotation()
    bridge6pin.coordinate = bridge6
    bridge6pin.title = "bridge6"
    bridge6pin.subtitle = "hello this is bridge 6"
    mapView.addAnnotation(bridge6pin)




}


func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
    let reuseIdentifier = "pin"
    var pin = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseIdentifier) as? MKPinAnnotationView
    if pin == nil {
        pin = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseIdentifier)
        pin!.pinColor = .Red
        pin!.canShowCallout = true
        pin!.rightCalloutAccessoryView = UIButton(type: .DetailDisclosure)
    } else {
        pin!.annotation = annotation
    }
    return pin
}


}

Answer 1

您可以了解不同视图之间的导航here in this link.

我会给出一些关于导航和准备导航数据的提示。

1.检测用户何时点击桥

为此，您只需要实现一个名为 calloutAccessoryControlTapped 的标注方法，如下所示。

func mapView(mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
    performSegueWithIdentifier("info", sender: view)
    // Above line of code is used for the segue operation between multiple MVCs.
}

2。你需要添加segue操作

这可以通过控制从主视图拖动到故事板上的详细视图并在弹出窗口中选择为 show 并在 属性检查器中将标识符添加为信息来完成强>

3.为螺纹桥准备模型

为此只需重写 prepareForSegue 方法，如下所示。

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    //Just validating by checking the same identifier 
    if (segue.identifier == "info") {
        if let annotation = sender as? MKAnnotationView {
            let detailViewController = segue.destinationViewController as! DetailViewController
            detailViewController.titleText  = annotation.annotation?.title ?? ""
            detailViewController.detaileText = annotation.annotation?.subtitle ?? ""
        }
    }
}

4.这是 DetailViewController。

它现在只有两个标签来显示title和subtitle。

import UIKit
class DetailViewController: UIViewController {
    @IBOutlet weak var titleLabel: UILabel!
    @IBOutlet weak var detailLabel: UILabel!

    var titleText: String? { didSet { updateUI() } }
    var detaileText: String? { didSet { updateUI() } }

    override func viewDidLoad() {
        super.viewDidLoad()
        updateUI()
    }

    private func updateUI() {
        self.titleLabel?.text = self.titleText
        self.detailLabel?.text = self.detaileText
    }
}