Krishna Thakur Krishna Thakur - 7 months ago 11
Swift Question

Custom annotation showing same image for all different types of POI's

I need to show different annotation for different cat_ID on map. in this question i am including only two categories .

let item = json["data"].arrayValue
var count = 0
initMK()
dispatch_async(dispatch_get_main_queue()) {
while count < item.count{
let lat = item[count]["comp_lat"].stringValue
let lng = item[count]["comp_lng"].stringValue

if item[count]["ct_id"].stringValue == "783"{
self.state = "Jachthavens"
let poi = MKPointAnnotation()
let coordinates = CLLocationCoordinate2D(latitude: Double(lat)!, longitude: Double(lng)!)
poi.coordinate = coordinates
poi.title = item[count]["comp_name_pub"].stringValue
poi.subtitle = "Jachthavens"
//poi.id
self.mapView.addAnnotation(poi)
self.mapView.reloadInputViews()


}else if item[count]["ct_id"].stringValue == "788"{

self.state = "Watersportwinkels"
let poi = MKPointAnnotation()
let coordinates = CLLocationCoordinate2D(latitude: Double(lat)!, longitude: Double(lng)!)
poi.coordinate = coordinates
poi.title = item[count]["comp_name_pub"].stringValue
poi.subtitle = "Watersportwinkels"
self.mapView.addAnnotation(poi)
self.mapView.reloadInputViews()
}
count = count + 1
}
}


///////// This is my viewForAnnotation method for setting different images problem comes in only if (state == "Watersportwinkels") and (state == "Jachthavens"). In result i can see only "Jachthavens" Image on my map but details on info window is correct .

let identifier = "MyPin"

if annotation.isKindOfClass(MKUserLocation) {
return nil
}

let detailButton: UIButton = UIButton(type: UIButtonType.DetailDisclosure)

// Reuse the annotation if possible
var annotationView = mapView.dequeueReusableAnnotationViewWithIdentifier(identifier)

if annotationView == nil
{
annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: "pin")
annotationView!.canShowCallout = true
if(state == "track")
{
annotationView!.image = UIImage(named: "startpin")
}
else if(state == "pause")
{
annotationView!.image = UIImage(named: "pausepin")
}
else if(state == "stop")
{
annotationView!.image = UIImage(named: "endpin")
}else if (state == "Jachthavens") {
annotationView!.image = UIImage(named: "jachthavenpin")
let deleteButton = UIButton(type: UIButtonType.Custom) as UIButton
deleteButton.frame.size.width = 35
deleteButton.frame.size.height = 35
deleteButton.backgroundColor = UIColor.whiteColor()
deleteButton.setImage(UIImage(named: "jachthaven"), forState: .Normal)
deleteButton.addTarget(self, action: #selector(ViewController.infoClicked(_:)), forControlEvents: .TouchUpInside)
annotationView!.leftCalloutAccessoryView = deleteButton
annotationView?.annotation = annotation



}else if (state == "Watersportwinkels"){
annotationView!.image = UIImage(named: "watersportwinkelspin")
let deleteButton = UIButton(type: UIButtonType.Custom) as UIButton
deleteButton.frame.size.width = 35
deleteButton.frame.size.height = 35
deleteButton.backgroundColor = UIColor.whiteColor()
deleteButton.setImage(UIImage(named: "watersportwinkels"), forState: .Normal)
deleteButton.addTarget(self, action: #selector(ViewController.infoClicked(_:)), forControlEvents: .TouchUpInside)
annotationView!.leftCalloutAccessoryView = deleteButton
annotationView?.annotation = annotation
}

}
else
{
annotationView!.annotation = annotation
}

return annotationView


}

Answer

can you try to change:

}else if  {

into:

else if(state == "Jachthavens")

update:

check subtitle instead of state:

if annotationView == nil {

    annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: "pin")
    annotationView!.canShowCallout = true

    if(annotationView.subtitle == "track") {
        annotationView!.image = UIImage(named: "startpin")
    } else if(annotationView.subtitle == "pause") {
        annotationView!.image = UIImage(named: "pausepin")
    } else if(annotationView.subtitle == "stop") {
        annotationView!.image = UIImage(named: "endpin")
    } else if (annotationView.subtitle == "Jachthavens") {
        annotationView!.image = UIImage(named: "jachthavenpin")
        let deleteButton = UIButton(type: UIButtonType.Custom) as UIButton
        deleteButton.frame.size.width = 35
        deleteButton.frame.size.height = 35
        deleteButton.backgroundColor = UIColor.whiteColor()
        deleteButton.setImage(UIImage(named: "jachthaven"), forState: .Normal)
        deleteButton.addTarget(self, action: #selector(ViewController.infoClicked(_:)), forControlEvents: .TouchUpInside)
        annotationView!.leftCalloutAccessoryView = deleteButton
        annotationView?.annotation = annotation
    } else if (annotationView.subtitle == "Watersportwinkels") {
        annotationView!.image = UIImage(named: "watersportwinkelspin")
        let deleteButton = UIButton(type: UIButtonType.Custom) as UIButton
        deleteButton.frame.size.width = 35
        deleteButton.frame.size.height = 35
        deleteButton.backgroundColor = UIColor.whiteColor()
        deleteButton.setImage(UIImage(named: "watersportwinkels"), forState: .Normal)
        deleteButton.addTarget(self, action: #selector(ViewController.infoClicked(_:)), forControlEvents: .TouchUpInside)
        annotationView!.leftCalloutAccessoryView = deleteButton
        annotationView?.annotation = annotation
    }

} else {
    annotationView!.annotation = annotation
}