通过appearance统一设置UITabBarItem的文字属性

最新推荐文章于 2022-11-30 17:54:25 发布

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本文介绍如何使用appearance API来统一设置iOS应用中UITabBarItem的文字属性，包括未选中和选中状态下的字体大小及颜色。

// 通过appearance统一设置UITabBarItem的文字属性
    NSMutableDictionary *attrs = [NSMutableDictionary dictionary];
    attrs[NSFontAttributeName] = [UIFont systemFontOfSize:12];
    attrs[NSForegroundColorAttributeName] = [UIColor grayColor];
    
    NSMutableDictionary *selectedAttrs = [NSMutableDictionary dictionary];
    selectedAttrs[NSFontAttributeName] = [UIFont systemFontOfSize:12];
    selectedAttrs[NSForegroundColorAttributeName] = [UIColor darkGrayColor];
    
    // 拿到UITabBarItem的appearance
    UITabBarItem *item = [UITabBarItem appearance];
    [item setTitleTextAttributes:attrs forState:UIControlStateNormal];
    [item setTitleTextAttributes:selectedAttrs forState:UIControlStateSelected];