如何知道应用程序在后台时是否触发了本地通知？

Question

I need to run specific code if a local notification was fired while the application was in the background and has now entered the foreground. One way to do this is to get the badge count, is there a better way?

Answer 1

Check out the docs at http://developer.apple.com/library/mac/#documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/IPhoneOSClientImp/IPhoneOSClientImp.html

Your App Delegate can detect notifications when the app is in the background

   - (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)notif {

    NSString *itemName = [notif.userInfo objectForKey:ToDoItemKey]

    [viewController displayItem:itemName];  // custom method

    application.applicationIconBadgeNumber = notification.applicationIconBadgeNumber-1;

}