我在地图中做了一些注释,当我点击它们时,我看到一些信息,我有一个按钮打开地图,并且有正确的信息我不能接受它应该画我的路线.
这是我的代码：
我的lat和amp有2个双列阵列.我从我的询问中填写了他们.
var lat = [Double]() var lon = [Double]()
这些行用于填充注释
self.annot = Islands(title: object["name"] as! String,subtitle: object["address"] as! String,coordinate: CLLocationCoordinate2D(latitude: (position?.latitude)!,longitude: (position?.longitude)!),info: object["address"] as! String) self.map.addAnnotations([self.annot])
这是注释创建的位置：
func mapView(mapView: MKMapView,viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
let identifier = "pin"
if annotation.isKindOfClass(MKUserLocation) {
return nil
}
let image = UIImage(named: "car")
let button = UIButton(type: .Custom)
button.frame = CGRectMake(0,30,30)
button.setimage(image,forState: .normal)
button.addTarget(self,action: #selector(Map.info(_:)),forControlEvents:UIControlEvents.TouchUpInside)
var annotationView = mapView.dequeueReusableAnnotationViewWithIdentifier(identifier)
if annotationView == nil {
annotationView = MKAnnotationView(annotation: annotation,reuseIdentifier: "pin")
annotationView!.canShowCallout = true
annotationView!.image = UIImage(named: "annotation")
annotationView!.rightCalloutAccessoryView = button
}
else {
annotationView!.annotation = annotation
}
return annotationView
}
最后这是按钮的功能,我应该传递正确的信息(以及问题出在哪里)
func info(sender: UIButton)
{
let latitute:CLLocationdegrees = lat[sender.tag]
let longitute:CLLocationdegrees = lon[sender.tag]
let regiondistance:CLLocationdistance = 10000
let coordinates = CLLocationCoordinate2DMake(latitute,longitute)
let regionSpan = MKCoordinateRegionMakeWithdistance(coordinates,regiondistance,regiondistance)
let options = [
MKLaunchOptionsMapCenterKey: NSValue(MKCoordinate: regionSpan.center),MKLaunchOptionsMapSpanKey: NSValue(MKCoordinateSpan: regionSpan.span)
]
let placemark = MKPlacemark(coordinate: coordinates,addressDictionary: nil)
let mapItem = MKMapItem(placemark: placemark)
mapItem.name = name[sender.tag]
print(sender.tag)
mapItem.openInMapsWithLaunchOptions(options)
}
如你所见,我尝试使用发送者标签,但没有运气.
编辑：我的自定义注释类
class Islands: NSObject,MKAnnotation {
var title: String?
var addr: String?
var coordinate: CLLocationCoordinate2D
var info: String?
var subtitle: String?
init(title: String,subtitle: String,coordinate: CLLocationCoordinate2D,info: String) {
self.title = title
self.coordinate = coordinate
self.info = info
self.subtitle = subtitle
}
}
解决方法
为此,您可以使用didSelectAnnotationView中的选定注释,然后将该注释存储到实例变量,然后在Button操作方法中使用注释.
var selectedAnnotation: MKPointAnnotation?
func mapView(mapView: MKMapView,didSelectAnnotationView view: MKAnnotationView) {
self.selectedAnnotation = view.annotation as? MKPointAnnotation
}
func info(sender: UIButton) {
print(selectedAnnotation?.coordinate)
}
编辑：你有自定义MKAnnotation类,你需要使用它.
var selectedAnnotation: Islands?
func mapView(mapView: MKMapView,didSelectAnnotationView view: MKAnnotationView) {
self.selectedAnnotation = view.annotation as? Islands
}