迅捷：實現shortcutItem（3D touch）共享項目錯誤“ AppDelegate類型的值不存在任何成員”

Question

我正在嘗試實現共享shortcutItem（我的實現）：

func application(_ application: UIApplication, performActionFor shortcutItem: UIApplicationShortcutItem, completionHandler: @escaping (Bool) -> Void) {
    if shortcutItem.type == "share"{
        self.shareItem()
    } 
}
func shareItem() {

    let visitedlink = "http://google.com"
    let myWebsite = NSURL(string: visitedlink)
    let img: UIImage = UIImage(named:"Logo")!
    guard let url = myWebsite else {
        print("nothing found")
        return
    }
    let shareItems:Array = [img,url]
    let activityViewController:UIActivityViewController = UIActivityViewController(activityItems: shareItems, applicationActivities: nil)
    activityViewController.excludedActivityTypes = [UIActivityType.print, UIActivityType.postToWeibo, UIActivityType.copyToPasteboard, UIActivityType.addToReadingList, UIActivityType.postToVimeo, UIActivityType.message, UIActivityType.mail]

    self.present(activityViewController, animated: true, completion: nil)
}

但是在這條線上：

self.present(activityViewController, animated: true, completion: nil)

我收到此錯誤：

Value of type AppDelegate has no member of present

你們誰都知道為什么我會收到此錯誤？ 或解決這個問題？

非常感謝您的幫助。

Answer 1

嘗試這個，

public extension UIViewController {
    func shareItem() {
        let visitedlink = "http://google.com"
        let myWebsite = NSURL(string: visitedlink)
        let img: UIImage = UIImage(named:"Logo")!
        guard let url = myWebsite else {
            print("nothing found")
            return
        }
        let shareItems:Array = [img,url]
        let activityViewController:UIActivityViewController = UIActivityViewController(activityItems: shareItems, applicationActivities: nil)
        activityViewController.excludedActivityTypes = [UIActivityType.print, UIActivityType.postToWeibo, UIActivityType.copyToPasteboard, UIActivityType.addToReadingList, UIActivityType.postToVimeo, UIActivityType.message, UIActivityType.mail]

        self.present(activityViewController, animated: true, completion: nil)
    }
}