CLGeocodeCompletionHandler IOS swift3

Question

做任何1知道swift3什么变化？如何解决下面的代码 我米使用geococdeAddressString

class func getMapByAddress(_ locationMap:MKMapView?, address:String?, title: String?, subtitle: String?) 
{ 
      let geocoder = CLGeocoder() 
      geocoder.geocodeAddressString(address!, completionHandler: {(placemarks: [CLPlacemark]?, error: NSError?) -> Void in 
       if let validPlacemark = placemarks?[0]{ 
        print(validPlacemark.location?.coordinate) 

        let span = MKCoordinateSpanMake(0.05, 0.05) 
        let region = MKCoordinateRegion(center: (validPlacemark.location?.coordinate)!, span: span) 
        locationMap?.setRegion(region, animated: true) 

        let annotation = MKPointAnnotation() 
        annotation.coordinate = (validPlacemark.location?.coordinate)! 
        annotation.title = title 
        annotation.subtitle = subtitle 
        locationMap?.addAnnotation(annotation) 
       } 

      } as! CLGeocodeCompletionHandler) 
} 

错误在此line..is只是崩溃在这条线as! CLGeocodeCompletionHandler) 没有错误只是显示<private>

Answer 1

使用下面的代码即删除[CLPlacemark]？和NSError？从完成处理程序

class func getMapByAddress(_ locationMap:MKMapView?, address:String?, title: String?, subtitle: String?) 
    { 
     let geocoder = CLGeocoder() 
     geocoder.geocodeAddressString(address!, completionHandler: {(placemarks, error) -> Void in 
      if let validPlacemark = placemarks?[0]{ 
       print(validPlacemark.location?.coordinate) 

       let span = MKCoordinateSpanMake(0.05, 0.05) 
       let region = MKCoordinateRegion(center: (validPlacemark.location?.coordinate)!, span: span) 
       locationMap?.setRegion(region, animated: true) 

       let annotation = MKPointAnnotation() 
       annotation.coordinate = (validPlacemark.location?.coordinate)! 
       annotation.title = title 
       annotation.subtitle = subtitle 
       locationMap?.addAnnotation(annotation) 
      } 

      }) 
    }