Ambiguous use of 'kGMSMarkerAnimationPop' Error in Swift 2

问题

Im having an error while trying to animate a GMSMarker, I have followed the Google documentation and various guides but it keeps returning an error, below is my code:

func placeMarker(coordinate: CLLocationCoordinate2D) {
    if locationMarker != nil {
        locationMarker.map = nil
    }

    locationMarker = GMSMarker(position: coordinate)
    locationMarker.icon = GMSMarker.markerImageWithColor(purple)
    locationMarker.appearAnimation = kGMSMarkerAnimationPop
    locationMarker.snippet = "The best place on earth."
    locationMarker.map = mapView
}

Which returns the error Ambiguous use of 'kGMSMarkerAnimationPop'

Any help would be appriciated!

回答1:

upgrading google map pod won't work, at least until 1.12.3.

1. change GMSMarkerAnimation in GMSMarker.h from this:

   typedef enum {
     /** No animation (default). */
     kGMSMarkerAnimationNone = 0,
   
     /** The marker will pop from its groundAnchor when added. */
     kGMSMarkerAnimationPop,
   } GMSMarkerAnimation;
   

   to this:

   typedef NS_ENUM(NSInteger, GMSMarkerAnimation){
     /** No animation (default). */
     kGMSMarkerAnimationNone = 0,
   
     /** The marker will pop from its groundAnchor when added. */
     kGMSMarkerAnimationPop,
   } ;
   

2. change

   locationMarker.appearAnimation = kGMSMarkerAnimationPop

   to

   locationMarker.appearAnimation = GMSMarkerAnimation.Pop

回答2:

In Swift 3/GoogleMaps 2.3.0. The new syntax is :

marker.appearAnimation = GMSMarkerAnimation.pop

回答3:

For me this happens when I upgrade from GoogleMap 1.10.3 to 1.11.1 using CocoaPod. Previously using 1.10.3 it requires me to import all of the header files of GoogleMap in Bridging-Header.h file.

To remove this ambiguous error, I just commented out all the imported headers in Bridging-Header.h

回答4:

I looked around and I found an answer that worked for me:

locationMarker.appearAnimation = GoogleMaps.kGMSMarkerAnimationPop

回答5:

Swift 3
marker.appearAnimation = kGMSMarkerAnimationpop

Swift 4

marker.appearAnimation = GMSMarkerAnimation.pop

来源：https://stackoverflow.com/questions/34656475/ambiguous-use-of-kgmsmarkeranimationpop-error-in-swift-2