需设置常态字体的颜色
if(@available(iOS10.0, *)) {
[[UITabBar appearance] setUnselectedItemTintColor:[UIColor xxxColor]];
}
设施tabBar字体常态及选中状态的方法
NSDictionary *normalAttribute = @{NSFontAttributeName: [UIFont systemFontOfSize:11],
NSForegroundColorAttributeName:[UIColor xxxColor]};
NSDictionary *selectedAttribute = @{NSFontAttributeName: [UIFont systemFontOfSize:11],
NSForegroundColorAttributeName:[UIColor xxxColor]};
// 设置tabbar字体颜色和大小
UITabBarItem *tabBarItem = [UITabBarItem appearance]; // UI_APPEARANCE_SELECTOR
[tabBarItemsetTitleTextAttributes:normalAttribute forState:UIControlStateNormal];
[tabBarItemsetTitleTextAttributes:selectedAttribute forState:UIControlStateSelected];
