1.tabbar橫線顏色

if (@available(iOS 13.0, *)) {

? ? ? ? UITabBarAppearance *standardAppearance = [[UITabBarAppearance alloc] init];

? ? ? ? standardAppearance.backgroundColor = [UIColor whiteColor];//根據(jù)自己的情況設置

? ? ? ? standardAppearance.shadowColor = [UIColor clearColor];//也可以設置為白色或任何顏色

? ? ? ? self.tabBar.standardAppearance = standardAppearance;

? ? }else{

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

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

? ? ? ? [UITabBar appearance].backgroundColor = [UIColor whiteColor];//根據(jù)自己的情況設置

? ? }

2.修改tabbar背景色

- (void)setTabbarBackGround{

? ? if(@available(iOS 13.0, *)) {

? ? ? ? UITabBarAppearance *appearance = [self.tabBar.standardAppearance copy];

? ? ? ? appearance.backgroundImage = [selfcreateImageWithColor:[UIColor clearColor]];

? ? ? ? appearance.shadowImage = [selfcreateImageWithColor:[UIColor clearColor]];

? ? ? ? //下面這行代碼最關鍵

? ? ? ? [appearance configureWithTransparentBackground];

? ? ? ? self.tabBar.standardAppearance = appearance;

? ? }else{

? ? ? ? ? ? [self.tabBar setBackgroundImage:[selfcreateImageWithColor:[UIColor clearColor]]];

? ? ? ? [self.tabBar setShadowImage:[selfcreateImageWithColor:[UIColor clearColor]]];

? ? ? ? self.tabBar.translucent =YES;

? ? }

}

3.設置tabbar字體顏色 大小

?if(@available(iOS 13.0, *)) {

? ? ? ? // iOS13 及以上

? ? ? ? self.tabBar.tintColor = [UIColor colorWithHexString:@"#FF0009"];

? ? ? ? self.tabBar.unselectedItemTintColor = [UIColor colorWithHexString:@"#333333"];

? ? ? ? UITabBarItem *item = [UITabBarItem appearance];

? ? ? ? [item setTitleTextAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:14]} forState:UIControlStateNormal];

? ? ? ? [item setTitleTextAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:14]} forState:UIControlStateSelected];

? ? }

? ? else{

? ? ? ? // iOS13 以下

? ? ? ? UITabBarItem *item = [UITabBarItem appearance];

? ? ? ? [item setTitleTextAttributes:@{ NSForegroundColorAttributeName:[UIColor colorWithHexString:@"#333333"],NSFontAttributeName:[UIFont systemFontOfSize:14]} forState:UIControlStateNormal];

? ? ? ? [item setTitleTextAttributes:@{ NSForegroundColorAttributeName:[UIColor colorWithHexString:@"#FF0009"],NSFontAttributeName:[UIFont systemFontOfSize:14]} forState:UIControlStateSelected];

? ? }