Colors SwiftUI将顶行添加到选项卡栏

如何在选项卡栏顶部添加线条/分隔符，以便在视图和选项卡栏之间添加某种分隔符？

您可以更改选项卡栏线条的颜色

init(){
  UITabBar.appearance().separatorColor = .red
  UITabBar.appearance().separatorInset = UIEdgeInsets(top: 0, left: -10, bottom: 0, right: 0)
}

---

我忘了我添加了这个代码，使TabBar完全变成白色。 但是我的阴影颜色是白色的，所以我把它改成了灰色

extension UITabBarController {
override open func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)
    let appearance = UITabBarAppearance()
    appearance.configureWithOpaqueBackground()

    appearance.backgroundColor = .white
    appearance.shadowImage = UIImage()
    appearance.shadowColor = .gray

    appearance.stackedLayoutAppearance.normal.iconColor = .black
    appearance.stackedLayoutAppearance.normal.titleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.black]

    self.tabBar.standardAppearance = appearance
}

---

}

标准TabBar分隔器有什么问题？我在SwifUI中的TabBar是白色的。在设备上？模拟器？预览我有Xcode 11.2，它像普通的一样无处不在，例如