Question

我已经经历了所有其他问题，但我不知道出了什么问题。我从Apple Developer网站Add Home Screen Quick Actions下载了示例项目，该项目没有问题，但是当我启动一个新的Xcode项目并复制该项目时，该项目对我完全不起作用。我肯定错过了什么。在这一点上，我只希望它在控制台中显示“快捷方式已按下”。将print("Shortcut pressed")添加到Apple项目后，我下载了它，效果很好。

这时我只是尝试随机的东西。

我用数组，字典和字符串更新了info.plist，我只是复制并粘贴了这些值以免造成任何错字错误。

UIApplicationShortcutItems，项目0，UIApplicationShortcutItemType，UIApplicationShortcutItemIconType，UIApplicationShortcutItemTitle

按下应用程序图标时会出现快捷方式，但它只是打开应用程序。

这是我非常基本的AppDelegate.Swift文件，只是试图使其执行任何操作可能是我的项目设置，我的Xcode版本是最新的-版本11.1（11A1027）

我以前从未使用过快速操作，它接缝很简单，但是接缝很简单，只需在plist中添加几行，然后将一些代码添加到AppDelegate.Swift文件中，但要花很多时间才能开始工作。

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。

Answer 1

好像您的应用是基于场景的。对于基于场景的应用程序，您几乎可以忘记AppDelegate并专注于SceneDelegate。您现在需要在SceneDelegate中覆盖两种方法，而在AppDelegate中需要覆盖一种方法。为了清楚起见，我将模仿Apple的指南：

如果用户正在打开该应用程序并且它是一个全新的启动，则可以在AppDelegate中进行处理：

     // 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)
     }

如果用户单击快捷方式项时您的应用仍在后台运行，则可以在SceneDelegate中进行处理：

    // 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
    }

场景准备好后，您可以使用快捷方式执行所需的操作：

    // 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
        }
    }

3D Touch快速操作根本不起作用

1 个答案: