Objective c 当应用程序在后台使用解析时，未接收推送通知

推送通知在应用程序位于后台时未接收。若应用程序位于前台，则其工作正常，若应用程序在收到通知后位于后台，则需要启动某些进程

我的代码是：

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
    [PFPush handlePush:userInfo];
     if (application.applicationState == UIApplicationStateInactive)
    {
       NSLog(@" background userInfo =%@",userInfo);

        [PFAnalytics trackAppOpenedWithRemoteNotificationPayload:userInfo];
    }

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

    NSLog(@"%@",userInfo);

}

---

我的环境：

iOS8、Xcode 6.3、Mac10.10。

对于iOS8，您需要使用以下第二种委托方法：

// < iOS7
- (void) application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo

// >= iOS7
- (void) application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler

/=iOS7
-（void）application:（UIApplication*）application didReceiveMemotentification:（NSDictionary*）userInfo fetchCompletionHandler:（void（^）（UIBackgroundFetchResult））completionHandler