我有一个包含导航栏项目的视图,并将该视图嵌入到TabView
。但这样做时,栏项目不再出现。如果我在 a 之外调用视图TabView
一切都按预期进行。
下面是一个小示例项目来说明我的问题,请注意TabView
最初没有被调用ContentView
但后来下来:
import SwiftUI
struct ContentView: View {
var body: some View {
NavigationView{
NavigationLink(destination: WarehouseOrderTabView()){
Text("Click me")
}
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
struct WarehouseOrderTabView: View {
var body: some View {
TabView{
TabView1().navigationBarTitle("Dashboard")
.tabItem {
Image(systemName: "gauge")
Text("Dashboard")
}
TabView2().navigationBarTitle("Orders")
.tabItem {
Image(systemName: "list.dash")
Text("Orders")
}
}
}
}
struct TabView1: View {
var body: some View {
Text("TabView 1")
//I would expect to see those bar items when displaying tab 1
.navigationBarItems(trailing: (
HStack{
Button(action: {
}, label: {
Image(systemName: "arrow.clockwise")
.font(.title)
})
.padding(.init(top: 0, leading: 0, bottom: 0, trailing: 20))
Button(action: {
}, label: {
Image(systemName: "slider.horizontal.3")
.font(.title)
})
}
))
}
}
struct TabView2: View {
var body: some View {
Text("TabView 2")
}
}
我在这里缺少什么?
A NavigationView
可以嵌入到TabView
反之则不然。
TabView
包含不同的tabItem()
(最多 5 个)可以包含您的观点。
您可以这样使用它。
TabView1.swift
struct TabView1: View {
var body: some View {
NavigationView {
Text("TabView 1")
.navigationBarTitle("Dashboard")
.navigationBarItems(trailing:
HStack {
Button(action: {
// more code here
}) {
Image(systemName: "arrow.clockwise")
.font(.title)
}
Button(action: {
// more code here
}) {
Image(systemName: "slider.horizontal.3")
.font(.title)
}
}
)
}
}
}
TabView2.swift
struct TabView2: View {
var body: some View {
NavigationView {
NavigationLink(destination: YourNewView()) {
Text("TabView 1")
}
.navigationBarTitle("Orders")
}
}
}
内容视图.Swift
import SwiftUI
struct ContentView: View {
var body: some View {
TabView {
TabView1()
.tabItem {
Image(systemName: "gauge")
Text("Dashboard")
}
TabView2()
.tabItem {
Image(systemName: "list.dash")
Text("Orders")
}
}
}
}
希望能帮助到你 :)
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