如何让你的推送通知打开某个视图控制器？

{
  "aps" : {
    "alert" : "New message",
    "sound" : "default"
  },
  "view_controller": "home"
}

// AppDelegate.swift
import UserNotifications

class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // 请求用户授权通知
        UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { (granted, error) in
            if granted {
                DispatchQueue.main.async {
                    application.registerForRemoteNotifications()
                }
            }
        }
        UNUserNotificationCenter.current().delegate = self
        return true
    }

    // 获取设备的Device Token
    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
        let token = deviceToken.map { String(format: "%02.2hhx", $0) }.joined()
        print("Device Token: \(token)")
    }

    // 处理收到的推送通知
    func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
        let userInfo = response.notification.request.content.userInfo
        
        // 解析自定义字段的值
        if let viewController = userInfo["view_controller"] as? String {
            // 根据自定义字段的值打开相应的视图控制器
            switch viewController {
            case "home":
                let homeViewController = HomeViewController()
                // 导航到指定的视图控制器
                if let navigationController = window?.rootViewController as? UINavigationController {
                    navigationController.pushViewController(homeViewController, animated: true)
                }
            case "settings":
                let settingsViewController = SettingsViewController()
                // 设置为根视图控制器
                window?.rootViewController = settingsViewController
            default:
                break
            }
        }
        
        completionHandler()
    }
}