iPadOS 15 UITabBar标题中断

Question

自从我升级了我的iPad操作系统后，我的应用程序的UITabBar标题显示为truncated，如截图所示。

我已经尝试了一些方法，但我没有找到正确的解决方案。

希望有人能帮我。

下面是代码：

func setupTabBar() {
    if #available(iOS 13, *) {
        let appearance = tabBar.standardAppearance
        appearance.configureWithOpaqueBackground()
        appearance.backgroundImage = UIImage(color: .white)
        appearance.shadowImage = UIImage(color: .clear)
        let normalAttrs: [NSAttributedString.Key: Any] = [.foregroundColor: ThemeColor.gray]
        let selectedAttrs: [NSAttributedString.Key: Any] = [.foregroundColor: ThemeColor.red]
        appearance.stackedLayoutAppearance.selected.titleTextAttributes = selectedAttrs
        appearance.stackedLayoutAppearance.normal.titleTextAttributes = normalAttrs
        appearance.inlineLayoutAppearance.selected.titleTextAttributes = selectedAttrs
        appearance.inlineLayoutAppearance.normal.titleTextAttributes = normalAttrs
        appearance.compactInlineLayoutAppearance.selected.titleTextAttributes = selectedAttrs
        appearance.compactInlineLayoutAppearance.normal.titleTextAttributes = normalAttrs
        UITabBar.appearance().standardAppearance = appearance
    } else {
        tabBar.backgroundImage = UIImage(color: .white)
        tabBar.shadowImage = UIImage(color: .clear)
    }

    if #available(iOS 15, *) {
        UITabBar.appearance().scrollEdgeAppearance = UITabBar.appearance().standardAppearance
    }
}

​

​

Answer 1

出于某些原因，似乎设置titleTextAttributes是导致inlineLayoutAppearance出现问题的原因，而包含NSParagraphStyle.default的默认段落样式可以解决这个问题。

对于您的代码，以下更改应该可以修复它(从iOS 15.0开始)。

let normalAttrs: [NSAttributedString.Key: Any] = [.foregroundColor: ThemeColor.gray, .paragraphStyle: NSParagraphStyle.default]
let selectedAttrs: [NSAttributedString.Key: Any] = [.foregroundColor: ThemeColor.red, .paragraphStyle: NSParagraphStyle.default]