应用终止时的远程通知

Question

我是iOS和Swift的新手。 我正在我的应用程序中实现远程通知。 当应用处于活动状态或在后台运行时，一切正常。 但是当应用终止时，我的通知没有显示。 我得到的只是通知的警报声音。

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
    if #available(iOS 10.0, *){
    }else{
        let notification = UILocalNotification()
        notification.alertTitle = "my Title"
        notification.alertBody = "My Message"
        notification.category = "customCategory"
        notification.soundName = UILocalNotificationDefaultSoundName
        application.scheduleLocalNotification(notification)
    }
}

Answer 1

当您收到通知并且应用程序处于终止状态时，将调用下面的AppDelegate方法

didFinishLaunchingWithOptions

因此，当应用处于终止状态时，您应该从此处正确处理它。

以下代码有助于在didFinishLaunchingWithOptions方法中标识“远程/推送”或“本地”通知：

if let launchOpts = launchOptions as [UIApplicationLaunchOptionsKey: Any]? {
            if let notificationPayload = launchOpts[UIApplicationLaunchOptionsKey.remoteNotification] as? NSDictionary {

                 //Handle push notification here
                }
else if let notification = (launchOpts as NSDictionary).object(forKey: "UIApplicationLaunchOptionsLocalNotificationKey") as? UILocalNotification {
               //Handle local notification here
                }