Question

描述 - Uptil iOS 9，以下方法被调用

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler

但是从iOS 10开始，apple提供了新的框架，即userNotification.framework 和处理的新方法，即

// The method will be called on the delegate only if the application is in the foreground. If the method is not implemented or the handler is not called in a timely manner then the notification will not be presented. The application can choose to have the notification presented as a sound, badge, alert and/or in the notification list. This decision should be based on whether the information in the notification is otherwise visible to the user.

- (void)userNotificationCenter:(UNUserNotificationCenter *)center
       willPresentNotification:(UNNotification *)notification
         withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler

和

// The method will be called on the delegate when the user responded to the notification by opening the application, dismissing the notification or choosing a UNNotificationAction. The delegate must be set before the application returns from applicationDidFinishLaunching:.

- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)())completionHandler

但现在，当应用程序处于后台且用户未点击通知时，我无法收到通知回电。

我想要的是当用户在后台时，如果他收到任何通知，那么我将以哪种方式收到收到通知的回电。

提前致谢。

Answer 1

在iOS10中，当应用运行前台时，将会调用 willPresent 。当用户在应用运行背景时点按通知时，系统会调用 didReceive 。

如果您希望在应用运行后台时处理通知，则仍需要实施 didReceiveRemoteNotification ... fetchCompletionHandler ，并且不要忘记添加“content-available”到你的通知有效载荷。将其设置为1。

如何在iOS 10中接收后台通知？

1 个答案: