UILocalNotification的实例

    [notification release];

取消通知

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    
    
    // Override point for customization after application launch.
    application.applicationIconBadgeNumber = 0;
    // Add the view controller‘s view to the window and display.
    [window addSubview:viewController.view];
    [window makeKeyAndVisible];

    return YES;
}
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
    //点击提示框的打开
    application.applicationIconBadgeNumber = 0;
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
    //当程序还在后台运行
    application.applicationIconBadgeNumber = 0;
}

UILocalNotification的实例

原文：http://blog.csdn.net/ganjicijiao/article/details/18617791