ios - Swift 结构体返回成员

Question

我有一个类似的结构:

struct SectionInfo {
    enum AccountSectionInfo: Int, CaseIterable {
        case accountCreationDate
        case referredBy
        case referralCount
    }
    enum StatisticsSectionInfo: Int, CaseIterable {
        case tasksCompleted
             case pointsScored
    }
  // return AccountSectionInfo for index 0, for 1 return StatisticsSectionInfo
  func section(forIndex index: Int) -> XXX {}
}

我想在 TableView 中使用它，如下所示:

cellForRow(at: IndexPath) -> UITableViewCell {
    let section = SectionInfo.section(at: indexPath.section)
    if section == AccountInfoSection.rawValue {

    }
}

这在 Swift 中可能吗？

Answer 1

basically I want to have an index (indexPath.section) and I want to get a certain member (enum) of the structure based on the index (the rows enum)

那么您的结构旨在作为 TableView 数据源的模型？那么这是一个非常糟糕的模型。自然的方式是这样的:

struct Row {
    // properties needed to populate a row
}
struct Section {
    let title : String // or whatever else you need to populate section header
    var rows : [Row]
}
var model : [Section]

现在您可以获得一行model[indexPath.section].rows[indexPath.row]。