Question

我想知道如何为给定的nsobject中的每个项目添加价格并将其显示在表格中。非常感谢:)

class MenuItems:NSObject{
var sections:[String] = []
var items:[[String]] = []
var price: [[String]] = []


func addSection(section: String, item:[String]){
    sections = sections + [section]
    items = items + [item]

}
}

class AnnMenuItems: MenuItems {
override init() {
    super.init()
    addSection("Threading", item: ["Eye Brows","Upper Lip","Forehead","Chin","Sides","Face Waxing/Face Threading"])
    addSection("Hair", item: ["Rebonding","Hair Dye","Head Massage","Streaking","Hair Cut","Straight Cut","Children Cut","Step Cut","Layer Cut"])
    addSection("Waxing", item: ["Full Arms","3/4 Arms","Under Arms","Full Legs", "3/4 Legs","Half Legs"])
    addSection("Hair Treatments", item: ["Hair Spa","Dandruff","Hair Fall Treatment","Galvanic Treatment", "Hair Wash","Colour/Henna/Oil"])
    addSection("Facial", item: ["Clean Up Normal","Black Heads","Clean Up Special","Herbal Facial", "Fruit Facial"])`


}
}

Answer 1

您可以创建一个字典，其中item-name可以是键，其价格可以是值。

根据您的设计，您还可以选择其他选项。例如：您可以创建名为Item的结构/类，并添加name，price等属性。

不确定要显示的方式，但您可以使用UITableView显示商品列表及其价格。

Answer 2

正如@ Tj3n建议的那样，您的数据结构应该具有更精细的粒度。我不确定你为什么要使用NSObject子类 - 我更喜欢struct s - 但在任何一种情况下你都可以这样做......

struct MenuItem {
    var item: String
    var price: String
}
struct MenuSection {
    var sectionName: String
    var items: [MenuItem]
}
struct MenuItems {
    var sections:[MenuSection] = []

    mutating func addSection(section: String, items:[MenuItem]){
        let newSection = MenuSection(sectionName: section, items: items)
        self.sections.append(newSection)
    }
}
func defaultMenu() -> MenuItems {
    var mi = MenuItems()
    mi.addSection("Threading", items: [MenuItem(item: "Eye Brows", price: "10/6d"), MenuItem(item: "Upper Lip", price: "€1") /* etc. */])
    mi.addSection("Hair", items: [MenuItem(item: "Rebonding", price: "$1"), MenuItem(item: "Hair Dye", price: "free") /* etc. */])
    // etc...

    return mi
}

如何为NSObject中的每个项目添加价格？

2 个答案: