Ios Swift如何通过Case Let访问模型变量

需要一些帮助才能获得JSON的值.我想访问radioButton对象，并访问description值(例如，竞争对手的其他产品有更好的产品)，以分配给tileView.title，如下所示:

 for viewContent in viewModel.contents {
            switch viewContent {
            case let .radioButtonGroup(radioButtonGroupModel):
                for i in 0..<radioButtonGroupModel.options.count {
                    let tileView = TileRadio()
                    tileView.title = radioButtonGroupModel.options...

打印此print(radioButtonGroupModel.options[i])将获得:

radioButton(RadioButtonModel(description: "Other Products from Competitors have better product", identifier: "competitorReason"))

以下是JSON解码器的代码库:

enum ComponentModel: Decodable {

    case radioButtonGroup(RadioButtonGroupModel)
    case radioButton(RadioButtonModel)
    case emptyComponent

    enum CodingKeys: String, CodingKey {
        case radioButtonGroup
        case radioButton
    }

    init(from decoder: Decoder) throws {
        let container = try decoder.container(keyedBy: CodingKeys.self)
        do {
            switch container.allKeys.first {

            case .radioButtonGroup:
                let value = try container.decode(RadioButtonGroupModel.self, forKey: .radioButtonGroup)
                self = .radioButtonGroup(value)
            case .radioButton:
                let value = try container.decode(RadioButtonModel.self, forKey: .radioButton)
                self = .radioButton(value)
            case .none:
                self = .emptyComponent
            }
        } catch {
            self = .emptyComponent
        }
    }
}

struct RadioButtonGroupModel: Decodable {
    let options: [ComponentModel]
}

struct RadioButtonModel: Decodable {
    let description: String
    let identifier: String
}

以下是部分JSON文件:

"closureReasons": {
        "pageTitle": "Close account",
        "content": [
 
            {
                "heading": {
                    "title": "Why are you closing this account?"
                }
            },
            {
                "spacing": ".spacing3x"
            },
            {
                "radioButtonGroup": {
                    "options": [
                        {
                            "radioButton": {
                                "identifier": "competitorReason",
                                "description": "Other Products from Competitors have better product"
                            }
                        },
                        {
                            "radioButton": {
                                "identifier": "betterReason",
                                "description": "I found a better product"
                            }
                        },

你对如何检索单选按钮属性有什么 idea 吗？非常感谢您的帮助