当用户点击通知时，从 UNNotificationRequest 呈现 ViewController

Question

我目前正在使用 Swift 4 开发一个包含本地通知的应用程序。当用户点击通知（例如呈现特定的 ViewController）时，我试图运行一段特定的代码。我找不到堆栈溢出的答案，因为 App 委托中的大多数功能都已弃用。

这是我用于通知的代码：

let center = UNUserNotificationCenter.current()
let content = UNMutableNotificationContent()
content.title = "Consejo"
content.body = "Haga clic en la notificacion para ver el consejo del dia."

content.sound = UNNotificationSound.default()

var dateComponents = DateComponents()

    if let hour = pickerdatehour {
        if let minute = pickerdateminute{

dateComponents.hour = hour
dateComponents.minute = minute
dateComponents.second = 0

let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents, repeats: true)

let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: trigger)
center.add(request, withCompletionHandler: nil)

我试图从应用程序委托执行的代码是：

import UIKit
import Firebase
import UserNotifications

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {

var window: UIWindow?


func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    FirebaseApp.configure()





    return true

}

func applicationWillResignActive(_ application: UIApplication) {
    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
    // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
}

func applicationDidEnterBackground(_ application: UIApplication) {
    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}

func applicationWillEnterForeground(_ application: UIApplication) {

}

func applicationDidBecomeActive(_ application: UIApplication) {
    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}

func applicationWillTerminate(_ application: UIApplication) {
    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}


func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    print("tes")
    let sb = UIStoryboard(name: "Main", bundle: nil)
    let otherVC = sb.instantiateViewController(withIdentifier: "consejos") as! ConsejosViewController
    window?.rootViewController = otherVC;
}

func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
    print("tes")

        let sb = UIStoryboard(name: "Main", bundle: nil)
        let otherVC = sb.instantiateViewController(withIdentifier: "consejos") as! ConsejosViewController
        window?.rootViewController = otherVC;
}




}

我做错了什么？应用委托上的代码甚至从未执行过。

感谢任何帮助

Answer 1

您需要将UNUserNotificationCenter 委托设置为self 以调用UNUserNotificationCenter 的委托方法，如下所示：

 let center = UNUserNotificationCenter.current()
 center.delegate = self