iOS 15 标签栏滚动到底部后透明

如何修复iOS 15标签栏滚动到底部后透明的问题：

在 iOS 15 中，UIKit 扩展了scrollEdgeAppearance 的使用，默认情况下会生成透明背景。

由于我在 iOS 15 之前在应用程序中全局更改了标签栏颜色，因此我已将以下代码添加到我的 AppDelegate 中：

UITabBar.appearance().barTintColor = "YOUR UITABBAR COLOR"
UITabBar.appearance().tintColor = "YOUR ICONS COLOR"
UITabBar.appearance().isTranslucent = true

为了恢复旧的外观，我采用了新的 UITBar 外观 API，UITabBarAppearance。我将代码更改为：

    UITabBar.appearance().barTintColor = "YOUR UITABBAR COLOR"
    UITabBar.appearance().tintColor = "YOUR ICONS COLOR"
    UITabBar.appearance().isTranslucent = true

    if #available(iOS 15.0, *) {
        let appearance = UITabBarAppearance()
        appearance.configureWithOpaqueBackground()
        appearance.backgroundColor = "YOUR UITABBAR COLOR"
        UITabBar.appearance().standardAppearance = appearance
        UITabBar.appearance().scrollEdgeAppearance = UITabBar.appearance().standardAppearance
    }

As a result, I get the original color of my UITabBar