设置Tabber 的提示通知

实现如图所示效果

在需要设置通知的.M文件中实现以下两个方法

// 初始化设置- (void)viewWillAppear:(BOOL)animated{    //  设置tabbar通知    UITabBarController *tabController = self.tabBarController;    UIViewController *requiredViewController = [tabController.viewControllers objectAtIndex:1];    UITabBarItem *item = requiredViewController.tabBarItem;    [item setBadgeValue:@"1"];}

// 取消- (void)viewWillDisappear:(BOOL)animated{    //  取消tabbar通知 退出该视图控制器后消失    UITabBarController *tabController = self.tabBarController;    UIViewController *requiredViewController = [tabController.viewControllers objectAtIndex:1];    UITabBarItem *item = requiredViewController.tabBarItem;    [item setBadgeValue:nil];}