CollectionViewCell、MapView 和自定义注释

CollectionViewCell, MapView and Custom Annotation

我的项目包含一个带有地图的 collectionView 每个单元格..

我正在尝试自定义标记(注释),但它不起作用。

我是这样做的:

1/ 我的 class ListeIncidentsController 中有趣的功能:

class ListeIncidentsController: UIViewController, UITableViewDelegate, UITableViewDataSource, UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout, CLLocationManagerDelegate {

...

// for each cell
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "collectionViewCelluleIncident", for: indexPath) as! collectionViewCelluleIncident
    let Incident = TabListeIncidents[indexPath.section] // section, pas row car on a mis les items en sections
    cell.displayContent(Incident: Incident, isSelected: cell.isSelected)
    return cell
}

...

}

2/ 我的 class collectionViewCelluleIncident 中有趣的函数:

class collectionViewCelluleIncident : UICollectionViewCell {

    ...

    func displayContent(Incident: Incident, isSelected : Bool){
        let TabCoordonnees = Incident.Coordonnee.split(separator: ",")
        let coordonnees = CLLocationCoordinate2D(latitude: Double(TabCoordonnees[0])!, longitude: Double(TabCoordonnees[1])!)
        let rayon : Double = Incident.Rayon

        // Add my custom Annotation
        let pinIncident = MyCustomPointAnnotation(TypeDePoint: .Incident) // class : CustomPointAnnotation.swift
        pinIncident.title = Incident.Adresse
        pinIncident.subtitle = "Rayon : "+String(Incident.Rayon)+"m"
        pinIncident.coordinate = CLLocationCoordinate2D(latitude: coordonnees.latitude, longitude: coordonnees.longitude)
        self.mapView.addAnnotation(pinIncident) // add my annotation

        ...etc etc
    }

    ...
}

3/ extensions 中有趣的功能:

extension collectionViewCelluleIncident : MKMapViewDelegate {

    ...

    func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {

        let identifier = "MyCustomPin"
        if annotation is MKUserLocation {
            return nil
        }

        var annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: identifier)
        annotationView?.image = nil

        if annotationView == nil {
            annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: identifier)
            annotationView?.canShowCallout = true
            annotationView?.image = UIImage(named: "my_custom_icon")
        }
        else {
            annotationView?.annotation = annotation
            annotationView?.image = nil
        }

        return annotationView
    }
}

4/ 这就是我的物品的连接方式

我的问题是我从来没有进入我的扩展(mapView/ViewFor)所以我的注释从来没有被定制过:/

我想我哪里错了,但我不知道在哪里..

你有想法吗?

谢谢:)

从图中看有点难看,但据我所知,你似乎已经将 collectionView 本身设置为 mapView 的委托,你已经在单元格中实现了委托回调.您是否尝试过设置 mapView.delegate = self(在 collectionView 单元格中)