我刚刚将XCode更新为6.3,现在我收到以下错误：
MKPointAnnotation没有名为“setCoordinate”的成员.
MKPointAnnotation没有名为“setCoordinate”的成员.
不知道它在哪里,或者如果我们应该使用一些其他的MK方法.任何帮助是赞赏.
func refreshlocation(lat:String,lon:String,withOffset:Bool = false){
// 1 Convert the string values to something that can be used.
let location = CLLocationCoordinate2D(
latitude: (lat as NSString).doubleValue as CLLocationDegrees,longitude: (lon as NSString).doubleValue as CLLocationDegrees
)
// 2 setup some initial variables.
let span = MKCoordinateSpanMake(
(self.locationLatitudeDelta as NSString).doubleValue as CLLocationDegrees,(self.locationLongitudeDelta as NSString).doubleValue as CLLocationDegrees
)
let region = MKCoordinateRegion(center: location,span: span)
mapView.setRegion(region,animated: true)
//3 decorate the point and add the point to the map.
var annotation = MKPointAnnotation()
annotation.setCoordinate(location) //Error on this line
}
解决方法
如
iOS 8.3 API Diffs in the MapKit module所述,setCoordinate方法被删除：
Removed MKAnnotation.setCoordinate(CLLocationCoordinate2D)
幸运的是,您现在必须使用更简单的赋值语法(这在之前版本的Swift中已经可以使用,并且可以在Objective-C中完成)：
annotation.coordinate = location
