修改Tabbar字体颜色

iOS13之前

UITabBarItem *tabBarItem = [UITabBarItem appearance];
[tabBarItem setTitleTextAttributes:attributDicNor forState:UIControlStateNormal];
[tabBarItem setTitleTextAttributes:attributDicSelect forState:UIControlStateSelected];

iOS13之后

UITabBar *tabBar = [UITabBar appearance];
[tabBar setTintColor:selectColor];
[tabBar setUnselectedItemTintColor:unSelectColor];