第二次点击时未设置UITabBarItem的自定义背景 [英] Custom background on UITabBarItem not set on second tap

问题描述

我有一个带有自定义标签栏项目的自定义标签栏.一切都按我想要的方式工作，除了轻按了某个水龙头并处于选定状态外，如果重新轻按它也不会使用我的自定义突出显示的背景.

I have a custom tabbar with custom tabbar items. Everything works as I want it to, besides when a tap has been tapped and is in a selected state, it does not use my custom highlighted background if re-tapped.

到目前为止，我已设置:

So far I set:

    UIButton *tap = [UIButton buttonWithType:UIButtonTypeCustom];
    [tap setBackgroundImage:img forState:UIControlStateNormal];
    [tap setBackgroundImage:[UIImage imageNamed:@"img_down"] forState:UIControlStateHighlighted];
    [tap setBackgroundImage:[UIImage imageNamed:@"img_down"] forState:UIControlStateSelected];

我已阅读到可能需要使用UITabBarDelegate.有任何想法吗?

I've read that I may need to use the UITabBarDelegate. Any ideas?

推荐答案

我需要设置:

    [tap setBackgroundImage:[UIImage imageNamed:@"img_down"] forState:(UIControlStateHighlighted|UIControlStateSelected)];;

查看此 SO帖子以了解详细信息

Check this SO post for details

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