iOS SwiftUI : ActionSheet custom style

Question

我正在尝试更改 SwiftUI 中 ActionSheet 的文本颜色和背景颜色。

这是我的actionSheet的代码:

.actionSheet(isPresented: $viewModel.isCustomItemSelected) {
        ActionSheet(
            title: Text("Add Item"),
            message: Text("Which item would you like to add?"),
            buttons: [
                .default(Text("Todo")),
                .default(Text("Event")),
                .cancel(Text("Cancel"))
        ])
}

无论我尝试什么，比如色调颜色、前景色等。它都不会改变颜色。正确的改变方法是怎样的呢？我想 SwiftUi 没有任何 API 来设置它的样式，但我确信这应该是任何解决方法。

Answer 1

部分解决方案

为 ActionSheet 创建自定义配置器:

import SwiftUI

struct ActionSheetConfigurator: UIViewControllerRepresentable {
    var configure: (UIAlertController) -> Void = { _ in }

    func makeUIViewController(context: UIViewControllerRepresentableContext<ActionSheetConfigurator>) -> UIViewController {
        UIViewController()
    }

    func updateUIViewController(
        _ uiViewController: UIViewController,
        context: UIViewControllerRepresentableContext<ActionSheetConfigurator>) {
        if let actionSheet = uiViewController.presentedViewController as? UIAlertController,
        actionSheet.preferredStyle == .actionSheet {
            self.configure(actionSheet)
        }
    }
}

struct ActionSheetCustom: ViewModifier {

    func body(content: Content) -> some View {
        content
            .background(ActionSheetConfigurator { action in
                // change the text color
                action.view.tintColor = UIColor.black
            })
    }
}

比在 View 中，在 .actionSheet 修饰符之后添加自定义修饰符，如下所示:

.actionSheet(isPresented: $viewModel.isCustomItemSelected) {
        ActionSheet(
            title: Text("Add Item"),
            message: Text("Wich item would you like to add?"),
            buttons: [
                .default(Text("Todo")),
                .default(Text("Event")),
                .cancel(Text("Cancel"))
        ])
    }
    .modifier(ActionSheetCustom())

我不知道如何更改背景颜色或如何进行重大定制。我确信我们应该处理要更改颜色的操作对象。