Arrays SwiftUI-列出嵌套数组中的元素
我试图在列表视图中显示顶级数组中的元素。数据模型的构建方式是,它是一个事件数组,然后在该数组中有一个与单个事件关联的场馆数组 在主视图中,我知道如何通过索引显示单个事件标题,但不知道如何使用ForEach列出所有不同的事件 Passports.swift(数据模型) 斯威夫特护照Arrays SwiftUI-列出嵌套数组中的元素,arrays,swiftui,Arrays,Swiftui,我试图在列表视图中显示顶级数组中的元素。数据模型的构建方式是,它是一个事件数组,然后在该数组中有一个与单个事件关联的场馆数组 在主视图中,我知道如何通过索引显示单个事件标题,但不知道如何使用ForEach列出所有不同的事件 Passports.swift(数据模型) 斯威夫特护照 import SwiftUI struct PassportsView: View { var model = Passports.all() var body: some View {
import SwiftUI
struct PassportsView: View {
var model = Passports.all()
var body: some View {
NavigationView {
ForEach(self.model) { item in
NavigationLink (destination: PassportDetails(passportTitle: item.passportTitle, venues: item.venues, venueProd: []) ) {
HStack {
VStack(alignment: .leading) {
Text(item.passport[0].passportTitle)
.fontWeight(.semibold)
.foregroundColor(Color.white)
Text(item.passport[0].passportDates)
.foregroundColor(Color.white)
}.frame(width: 400, height: 120)
.background(Color("wPurple"))
.cornerRadius(6)
}
}.padding(.horizontal)
}
}
}
}
护照详情
struct PassportDetails: View {
var passportTitle: String
var venues: [Venue]
var venueProd: [venueItem]
var body: some View {
List {
ForEach(self.venues) { gc in
Section(header: Text(gc.title)) {
ForEach(gc.venueItems, id: \.title) { gi in
GeometryReader { geometry in
VStack(alignment: .leading) {
HStack {
Text(gi.title)
.frame(width: geometry.size.width / 1.5, alignment: .leading)
.fixedSize(horizontal: false, vertical: true)
.padding(.top, 10)
Spacer()
Text("$\(gi.productPrice, specifier: "%.2f")")
.multilineTextAlignment(.trailing)
}.padding(.top, 8)
HStack {
Text(gi.productDescription)
.font(.footnote)
.foregroundColor(Color.gray)
.frame(width: geometry.size.width / 1.5, alignment: .leading)
.fixedSize(horizontal: false, vertical: true)
.padding(.bottom, 8)
Spacer()
}.padding(.bottom, 8)
}
}.padding(.vertical)
}
}
}
}.listStyle(GroupedListStyle())
.navigationBarTitle(Text(passportTitle), displayMode: .inline)
}
}
显然,“Text(item.passport[0].passportTitle)”将显示数组中的第一个项,但我希望在顶部数组中显示所有passportTitle和passportDate,并使用NavigationLink将信息传递到详细信息视图。根据您的描述,您需要一个两级数据模型和视图层次结构:
Passport
struct表示)场馆
结构表示)Passport
包含Passport
包含场馆
)
如果我们删除无关的Passports
结构,我们可以清理静态.all()
函数和PassportsView
结构
extension Passport {
static func all() -> [Passport] {
return [
Passport (
id: 1001,
passportPremium: false,
passportActive: true,
passportTitle : "Wine Festival",
passportDates: "October 20 - November 3, 2020",
venues: [
Venue (
title: "Bavaria Holiday Kitchen",
venueArea: "Germany Pavilion",
venueItems: [
venueItem (
title: "Potato Dumpling",
productDescription: "Potato Dumpling with Mushroom Sauce",
productPrice: 0.00,
productType: "Food",
newStatus: false,
diningPlan: false,
kidFriendly: true,
vegetarian: false,
glutenFree: false,
featuredProduct: false,
containsAlcohol: false
)
])
])
]
}
}
以下是更新后的视图:
struct PassportsView: View {
var model = Passport.all()
var body: some View {
NavigationView {
ForEach(self.model) { passport in
NavigationLink (destination: PassportDetails(passportTitle: passport.passportTitle, venues: passport.venues, venueProd: []) ) {
HStack {
VStack(alignment: .leading) {
Text(passport.passportTitle)
.fontWeight(.semibold)
.foregroundColor(Color.white)
Text(passport.passportDates)
.foregroundColor(Color.white)
}.frame(width: 400, height: 120)
.background(Color("wPurple"))
.cornerRadius(6)
}
}.padding(.horizontal)
}
}
}
}
struct PassportsView: View {
var model = Passport.all()
var body: some View {
NavigationView {
ForEach(self.model) { passport in
NavigationLink (destination: PassportDetails(passportTitle: passport.passportTitle, venues: passport.venues, venueProd: []) ) {
HStack {
VStack(alignment: .leading) {
Text(passport.passportTitle)
.fontWeight(.semibold)
.foregroundColor(Color.white)
Text(passport.passportDates)
.foregroundColor(Color.white)
}.frame(width: 400, height: 120)
.background(Color("wPurple"))
.cornerRadius(6)
}
}.padding(.horizontal)
}
}
}
}