Question

我有这个结构（在单独的swift文件中）：

struct Section {
    var infoType: String!
    var info: [String]!
    var icon: [UIImage]!
    var expanded: Bool!

    init(infoType: String, info: [String],icon: [UIImage], expanded: Bool) {
        self.infoType = genre
        self.info = movies
        self.icon = icon
        self.expanded = expanded
    }

}

我用它来填充tableView
在`viewController中，我这样做：

class UserInTableViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {

   private var userName: String = ""


    @IBOutlet weak var tableView: UITableView!

    var ref: DatabaseReference?
    let user = Auth.auth().currentUser!.uid
    var databaseHandle: DatabaseHandle?

    var sections = [
        Section(infoType: "Venue Info": ,
                info: [], //I want to populate this array with string variables
                icon: [],
                expanded: false),
        Section(infoType: "User Info": ,
                info: [], //I want to populate this array with string variables    
                icon: [],    
                expanded: false),
        Section(infoType: "Other Info": ,
                info: [], //I want to populate this array with string variables
                icon: [],
                expanded: false)

    ]

如何用变量填充？

Answer 1

您可以通过枚举数组来做到这一点

首先，按照Vadian的建议，将其更改为非可选，并且不要将图像直接保存到数组中，而是保存图像的名称。

struct Section {
    var infoType: String
    var info: [String]
    var icon: [UIImage]
    var expanded: Bool
}

在viewController中创建一个函数，只要拥有它，它就会将内容更改为实际内容。

 func populateArrayWithActualInfo() {
     for (index,section) in self.sections.enumerated() {
            var secInside = section
            secInside.info = ["a", "b", "c"]
            self.sections[index] = secInside
     }
     print(self.sections)
 }

或如果要从现有数组中设置动态信息，则可以将其传递给函数。

func populateArrayWithActualInfo(_ yourData:[[String]]) {
         for (index,section) in self.sections.enumerated() {
                var secInside = section
                secInside.info = yourData[index]
                self.sections[index] = secInside
         }
         print(self.sections)
     }

尝试一下并分享结果。

用变量填充结构

1 个答案: