如何使用callout按钮打开新的uiviewcontroller。 （迅速）

Question

我在地图上放了几个引脚，例如对应不同的桥位置。点击时，每个引脚都有自己的注释，显示其标题和副标题。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，它会改变UiViewController上显示的信息，具体取决于按下哪个桥接信息按钮。

基本上我需要知道如何： 1：按下注释中的信息按钮时打开UiViewController。 2：改变关于按下哪个桥接信息按钮的UiViewController花费的信息。

这是我到目前为止所做的：

     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

您可以了解不同观点之间的导航here in this link.

我将对导航和准备导航数据给出一些提示。

<强> 1。检测用户何时点击网桥

为此，您只需要实现一个名为 calloutAccessoryControlTapped 的callout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.
}

<强> 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来完成，并在弹出窗口中选择显示，然后在属性检查器中添加标识符作为信息

第3。准备挖掘桥的模型

为此，只需覆盖 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 ?? ""
        }
    }
}

<强> 4。这是DetailViewController。

现在只有两个标签可以显示标题和字幕。

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
    }
}