3D Touch快速操作完全不起作用

Question

3D Touch快速操作完全不起作用

5

我浏览了所有其他的问题，但我无法弄清楚出了什么问题。我从Apple Developer网站下载了示例项目添加主屏幕快速操作，那个没有问题，但是当我启动一个新的Xcode项目并复制它时，它对我不起作用。我一定漏掉了什么东西。现在，我只想让它在控制台中打印“按下快捷方式”。当我在我下载的Apple项目中添加print（“Shortcut pressed”）时，它可以正常工作。

目前我只是随意尝试各种东西。

我已经使用数组、字典和字符串更新了我的info.plist，并复制和粘贴了值，以免出现任何拼写错误。

UIApplicationShortcutItems，Item 0，UIApplicationShortcutItemType，UIApplicationShortcutItemIconType，UIApplicationShortcutItemTitle 按下应用程序图标时，这个快捷方式出现了，但它只是打开了应用程序。

这是我的非常基本的AppDelegate.Swift文件，只是试图让它做任何事情。可能是我的项目设置有问题，我的Xcode版本是最新的 - 版本11.1（11A1027）

我以前从未使用过快捷操作，它似乎很简单，只需在plist中添加几行代码，并在AppDelegate.Swift文件中添加一些代码，但是要使其正常工作需要很长时间。

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

     var shortcutItemToProcess: UIApplicationShortcutItem?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        if let shortcutItem = launchOptions?[UIApplication.LaunchOptionsKey.shortcutItem] as? UIApplicationShortcutItem {
            shortcutItemToProcess = shortcutItem
            print("Shortcut pressed")
        }
        return true
    }

    func application(_ application: UIApplication, performActionFor shortcutItem: UIApplicationShortcutItem, completionHandler: (Bool) -> Void) {
        print("Shortcut pressed")
    }

    func applicationDidBecomeActive(_ application: UIApplication) {
        print("Shortcut pressed")
    }

    // MARK: UISceneSession Lifecycle

    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
        // Called when a new scene session is being created.
        // Use this method to select a configuration to create the new scene with.
        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
    }

    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
        // Called when the user discards a scene session.
        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
    }


}

谢谢。

- Kurt L.

1个回答

网页内容由stack overflow 提供, 点击上面的

可以查看英文原文，
原文链接

- William Brawner · Accepted Answer

看起来你的应用是基于场景的。对于基于场景的应用程序，你几乎可以忘记 AppDelegate ，并专注于 SceneDelegate 。现在，你需要重写 SceneDelegate 中的两个方法和 AppDelegate 中的一个方法。为了清晰明了，我将模拟苹果的指南：

如果用户正在打开应用程序，并且这是一次全新启动，那么在 AppDelegate 中处理此操作：

     // AppDelegate.swift
     func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
         // Called when a new scene session is being created.
         // Use this method to select a configuration to create the new scene with.

         // Grab a reference to the shortcutItem to use in the scene
         if let shortcutItem = options.shortcutItem {
             shortcutItemToProcess = shortcutItem
         }

         // Previously this method only contained the line below, where the scene is configured
         return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
     }

如果用户在单击快捷方式项目时您的应用仍在后台运行，您需要在SceneDelegate中处理：

    // SceneDelegate.swift
    func windowScene(_ windowScene: UIWindowScene, performActionFor shortcutItem: UIApplicationShortcutItem, completionHandler: @escaping (Bool) -> Void) {
        // When the user opens the app through a quick action, this is now the method that will be called
        (UIApplication.shared.delegate as! AppDelegate).shortcutItemToProcess = shortcutItem
    }

场景准备就绪后，您可以使用快捷方式进行所需操作：

    // SceneDelegate.swift
    func sceneDidBecomeActive(_ scene: UIScene) {
        // Is there a shortcut item that has not yet been processed?
        if let shortcutItem = (UIApplication.shared.delegate as! AppDelegate).shortcutItemToProcess {
            // In this sample an alert is being shown to indicate that the action has been triggered,
            // but in real code the functionality for the quick action would be triggered.
            var message = "\(shortcutItem.type) triggered"
            if let name = shortcutItem.userInfo?["Name"] {
                message += " for \(name)"
            }
            let alertController = UIAlertController(title: "Quick Action", message: message, preferredStyle: .alert)
            alertController.addAction(UIAlertAction(title: "Close", style: .default, handler: nil))
            window?.rootViewController?.present(alertController, animated: true, completion: nil)

            // Reset the shorcut item so it's never processed twice.
            (UIApplication.shared.delegate as! AppDelegate).shortcutItemToProcess = nil
        }
    }