如何使用标注按钮打开新的 uiviewcontroller。 (Swift)

Question

例如，我在地图上放置了几个图钉，对应于不同的桥梁位置。单击这些图钉时，每个图钉都有自己的注释，显示它们的标题和副标题。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：按下注释中的信息按钮时打开一个 UiViewController。 2：改变 UiViewController 上的信息，以了解按下了哪些桥信息按钮。

这是我目前的情况：

     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的提示和准备导航的数据。

1.检测用户何时点击桥

为此，您只需实现一种名为 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。您需要添加 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和 select 在弹出窗口和 [=34] 中显示来完成=]属性检查器将标识符添加为信息

3。准备螺纹桥的模型

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
    }
}

如何使用标注按钮打开新的 uiviewcontroller。 (Swift)

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