如何检测在 Swift 4 中触发预定通知的时间

How to detect when a scheduled notification has been fired in Swift 4

我已经创建了一个预定的通知,我希望能够在它发送后进行处理。不是在点击或 selected 之后,而是在实际交付并显示在用户屏幕上时。

我用来生成通知的代码是:

let content = UNMutableNotificationContent()
content.title = NSString.localizedUserNotificationString(forKey: "foo", arguments: nil)
content.body = NSString.localizedUserNotificationString(forKey: "bar", arguments: nil)


var dateInfo = DateComponents()
dateInfo.hour = 7
dateInfo.minute = 0
print(dateInfo.hour!)
print(dateInfo.minute!)

let trigger = UNCalendarNotificationTrigger(dateMatching: dateInfo, repeats: false)
// Create the request object.
let notificationRequest = UNNotificationRequest(identifier: "MorningAlarm", content: content, trigger: trigger)
center.add(notificationRequest)

我确定我必须向我的 AppDelegate 添加一些东西,以便在发送通知时做出响应,但我一直在整个互联网上寻找,但找不到在送货而不是 select.

当通知到达时,系统调用 UNUserNotificationCenter 对象的委托的 userNotificationCenter(_:willPresent:withCompletionHandler:) 方法。

 let center = UNUserNotificationCenter.current()  
 center.delegate = self // What delegation target Here is my AppDelegate




extension AppDelegate : UNUserNotificationCenterDelegate {
               // while your app is active in forground

             // Handle Notifications While Your App Runs in the Foreground

             func userNotificationCenter(_ center: UNUserNotificationCenter,
                                            willPresent notification: UNNotification,
                                            withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
                    let userInfo = notification.request.content.userInfo

                    // Change this to your preferred presentation option
                    // Play a sound.
                    //  completionHandler(UNNotificationPresentationOptions.sound)
            }

              // While App is inactive  in background
                func userNotificationCenter(_ center: UNUserNotificationCenter,
                                            didReceive response: UNNotificationResponse,
                                            withCompletionHandler completionHandler: @escaping () -> Void) {
                    let userInfo = response.notification.request.content.userInfo

                    // While App is inactive  in background


                    print(userInfo)


                    completionHandler()
                }
        }