share-extension-2.swift

let extensionItem = extensionContext?.inputItems.first as! NSExtensionItem
let itemProvider = extensionItem.attachments?.first as! NSItemProvider
let propertyList = String(kUTTypePropertyList)
if itemProvider.hasItemConformingToTypeIdentifier(propertyList) {
    itemProvider.loadItem(forTypeIdentifier: propertyList, options: nil, completionHandler: { (item, error) -> Void in
        guard let dictionary = item as? NSDictionary else { return }
        OperationQueue.main.addOperation {
            if let results = dictionary[NSExtensionJavaScriptPreprocessingResultsKey] as? NSDictionary,
                let urlString = results["URL"] as? String,
                let url = NSURL(string: urlString) {
                print("URL retrieved: \(urlString)")
            }
        }
    })
} else {
    print("error")
}