从UIView更新UITabBarController的badgeValue的最佳方法 [英] Best way to update badgeValue of UITabBarController from a UIView

问题描述

我在AppDelegate中设置了tabBarController，并且有一些带有Nav Controllers的UIViewControllers。在其中一个TabBar项目中，在我推动了几个UIViews后，我想更新另一个TabBar项目的badgeValue项目。

I have a tabBarController set up in the AppDelegate and have a few UIViewControllers with Nav Controllers. In one of the TabBar items, after I have pushed a few UIViews I want to update the badgeValue item of a different TabBar item.

最好的方法是什么？我能够真正想到的唯一方法是NSNotification和单值存储的价值，但似乎很多简单的工作，我不知道NSNotifications。

Whats the best way to do this? The only way I can really think is a NSNotification and a singleton storage for the value, but it seems a lot of work for something simple, that and I have no idea about NSNotifications.

我对super.tabBarController.otherView.tabBarItem.badgeValue = @1这样的东西进行了疯狂猜测（因为我设置了以类似的方式选择了哪个选项卡）但我并不感到惊讶，这不起作用。

I had a wild guess at something like super.tabBarController.otherView.tabBarItem.badgeValue = @"1" (as I set which tab is selected in a similar way) but I'm not surprised this doesn't work.

谢谢

推荐答案

感谢alku83指出我正确的方向，代码是：

Thanks to alku83 who pointed me in the right direction the code is:

[[super.tabBarController.viewControllers objectAtIndex:2] tabBarItem].badgeValue = @"1";

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