iOS应用程序在后台显示通知，但在前台iPhone 4s和OS版本9.3不显示通知

Question

应用程序在不处于运行状态，后台状态时正在接收远程通知，并使用本地拦截概念在前台状态中接收通知（在获取远程通知时触发本地通知）。 但是，当应用程序处于前台并且iOS版本为9.3时，它不会收到远程通知。

我的代码在这里：

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
        {

        NSLog(@"Called");
        NSLog(@"Response - > %@",userInfo);
        UILocalNotification* localNotification = [[UILocalNotification alloc] init];
        localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:1];
        localNotification.alertBody = [[userInfo valueForKey:@"aps"] valueForKey:@"alert"];
        localNotification.timeZone = [NSTimeZone defaultTimeZone];
        localNotification.applicationIconBadgeNumber = 0;
    }

    - (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification  withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler
    {
        NSLog( @"Handle push from foreground" );
        // custom code to handle push while app is in the foreground
        NSLog(@"%@", notification.request.content.userInfo);
        completionHandler(UNNotificationPresentationOptionAlert);
    }

    - (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)(void))completionHandler
    {
        NSLog( @"Handle push from background or closed" );
        // if you set a member variable in didReceiveRemoteNotification, you  will know if this is from closed or background
        NSLog(@"%@", response.notification.request.content.userInfo);
        NSInteger countNoti = [[[response.notification.request.content.userInfo valueForKey:@"aps"] valueForKey:@"badge"] integerValue];


        if ([[UIApplication sharedApplication] applicationState] == UIApplicationStateActive ) {

            UILocalNotification* localNotification = [[UILocalNotification alloc] init];
            localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:1];
            localNotification.alertBody = [[response.notification.request.content.userInfo valueForKey:@"aps"] valueForKey:@"alert"];
            localNotification.timeZone = [NSTimeZone defaultTimeZone];
            localNotification.applicationIconBadgeNumber = countNoti;

            [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
        }
    }

didReceiveRemoteNotification调用，但未显示通知。 谢谢。

Answer 1

我认为您尚未在AppDelegate文件中实现iOS9 PushNotification方法

Objective-C的

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo

迅速

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any])

您可以在应用处于活动状态时在上述功能中安排本地通知。 显示通知。