得到推送通知，而应用程序是不是乳宁iPhone [英] get push notification while the app is not runing iPhone

问题描述

我工作在一个iPhone应用程序，其中包括推送通知。正如我在许多文件和教程已经看到它表明了推送通知与注册

I am working on one iPhone app which involves a push notification. As I have seen in many documents and tutorials it suggests to register for push notification with in

  application:(UIApplication *)application 
  didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 

这样的：

  - (BOOL)application:(UIApplication *)application 
  didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
   {   
   [[UIApplication sharedApplication]    registerForRemoteNotificationTypes:UIRemoteNotificationTypeAlert| UIRemoteNotificationTypeBadge|  UIRemoteNotificationTypeSound ]; 

  .........
  } 

现在的问题是，如果应用程序没有（甚至在后台）运行，当推来了，它不能处理推送消息，但如果我再次使用推送消息从通知区域和午餐的应用程序再次，我可以让我的消息。

now the question is, if the app was not running (even in background), when the push come, it cant process the push message, but if I use the push message again from the notification area and lunch the app again, I can get my message.

我需要做的，使我的应用程序得到推送消息，即使它的午餐是第一次？

what I need to do to make my app get the push message even when it lunch for the first time?

感谢

推荐答案

您可能会被混为一谈注册并接收通知的概念。这是不可能的一个应用程序的 registerForRemoteNotificationTypes前收到一个推送通知：方法被称为第一次，因为这种方法提供了一个用于发送推送通知在推令牌位居第一。

You might be conflating the notion of registering for and receiving notifications. It is impossible for an app to receive a push notification before the registerForRemoteNotificationTypes: method is called the first time, since this method provides the push token that is used to send push notifications in the first place.

所以，你必须谈论下，他们可以交付两个独立的情况下收到通知：在初始应用程序启动，程序的执行过程中

So, you must be talking about receiving notifications under the two separate situations in which they can be delivered: upon initial app launch, and during the execution of the program.

为了处理第一类的通知，你必须检查选项字典发送到的application：didFinishLaunchingWithOptions：。下面code说明了如何将在发射的委托方法收到通知时，推送通知到达而应用程序已经在运行时调用。

In order to handle notifications of the first type, you must inspect the options dictionary sent to application:didFinishLaunchingWithOptions:. The following code shows how to route a notification received at launch to the delegate method that is called when a push notification arrives while the app is already running.

这将在你的的application：didFinishLaunchingWithOptions：覆盖：

NSDictionary *pushNotificationPayload = [launchOptions valueForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
if(pushNotificationPayload) {
    [self application:application didReceiveRemoteNotification:pushNotificationPayload];
}

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