CoreSpotlight search index addition in swift

gistfile1.txt

func spotLighIndexingForContact(contact: MainContact) -> AnyObject
    {
        if #available(iOS 9, *) {
            let attributeSet : CSSearchableItemAttributeSet = CSSearchableItemAttributeSet(itemContentType: kUTTypeImage as String)
            
            let name : String = contact.firstname + " " + contact.lastname
            
            attributeSet.title = name
            attributeSet.contentDescription = "Main Contact"
            
            let imgData = UIImagePNGRepresentation(UIImage(named: "3dotsHome")!)
            attributeSet.thumbnailData = imgData
            var item: CSSearchableItem
            let identifier = contact.guid
            item = CSSearchableItem(uniqueIdentifier: identifier, domainIdentifier: "co.getmain.search", attributeSet: attributeSet)
            
            return item
        }
        
       return ""
    }
    
    func spotLighIndexingForContactAndPhoto(contact: MainContact, photo: UIImage) -> AnyObject
    {
        if #available(iOS 9, *) {
            let attributeSet : CSSearchableItemAttributeSet = CSSearchableItemAttributeSet(itemContentType: kUTTypeImage as String)
            
            let name : String = contact.firstname + " " + contact.lastname
            
            attributeSet.title = name
            attributeSet.contentDescription = "Tap to see full contact info"
            
            let imgData = UIImageJPEGRepresentation(photo, 0.7)
            attributeSet.thumbnailData = imgData
            var item: CSSearchableItem
            let identifier = contact.guid
            item = CSSearchableItem(uniqueIdentifier: identifier, domainIdentifier: "co.getmain.search", attributeSet: attributeSet)
            
            return item
        }
        
        return ""
    }