tabbar横线颜色

//tabbar横线颜色

    if(@available(iOS13.0, *)) {

        UITabBarAppearance*standardAppearance = [[UITabBarAppearancealloc]init];

        standardAppearance.backgroundColor= [UIColorclearColor];//根据自己的情况设置

        standardAppearance.shadowColor= [UIColorclearColor];//也可以设置为白色或任何颜色

        self.standardAppearance= standardAppearance;

    }

    else{

        [[UITabBar appearance] setBackgroundImage:[[UIImage alloc]init]];

        [[UITabBar appearance] setShadowImage:[[UIImage alloc]init]];

        [UITabBar appearance].backgroundColor = [UIColor clearColor];//根据自己的情况设置

    }