celebrity.swift

//1. First we check if there are any celebrities in the response 
if ((result!.celebrityFaces?.count)! > 0){
                    
    //2. Celebrities were found. Lets iterate through all of them 
    for (index, celebFace) in result!.celebrityFaces!.enumerated(){

        //Check the confidence value returned by the API for each celebirty identified 
        if(celebFace.matchConfidence!.intValue > 50){ //Adjust the confidence value to whatever you are comfortable with 
            
            //We are confident this is celebrity. Lets point them out in the image using the main thread                 
            DispatchQueue.main.async {
                [weak self] in

                //Create an instance of Celebrity. This class is availabe with the starter application you downloaded
                let celebrityInImage = Celebrity()
                
                celebrityInImage.scene = (self?.CelebImageView)!
                
                //Get the coordinates for where this celebrity face is in the image and pass them to the Celebrity instance
                celebrityInImage.boundingBox = ["height":celebFace.face?.boundingBox?.height, "left":celebFace.face?.boundingBox?.left, "top":celebFace.face?.boundingBox?.top, "width":celebFace.face?.boundingBox?.width] as! [String : CGFloat]

                //Get the celebrity name and pass it along
                celebrityInImage.name = celebFace.name!
                //Get the first url returned by the API for this celebrity. This is going to be an IMDb profile link
                if (celebFace.urls!.count > 0){
                    celebrityInImage.infoLink = celebFace.urls![0]
                }
                //If there are no links direct them to a search page
                else{
                    celebrityInImage.infoLink = "www.google.com/search?q="+celebrityInImage.name
                }
                //Update the celebrity links map that we will use next to creat buttons
                self?.infoLinksMap[index] = "https://"+celebFace.urls![0]
                
                //Create a button that will take users to the IMDb link when tapped
                let infoButton:UIButton = celebrityInImage.createInfoButton()
                infoButton.tag = index
                infoButton.addTarget(self, action: #selector(self?.handleTap), for: UIControlEvents.touchUpInside)
                self?.CelebImageView.addSubview(infoButton)
            }
        }
        
    }
}
//If there were no celebrities in the image, lets check if there were any faces (who, granted, could one day become celebrities)
else if ((result!.unrecognizedFaces?.count)! > 0){
//Faces are present. Point them out in the Image (left as an exercise for the reader)
    /*
        
    */
}
else{
//No faces were found (presumably no people were found either)
    print("No faces in this pic")
}