In the files App after you pressed the Select button the tabBar switch to the toolbar.
How can I do this with swiftUI?(Switch between tabBar and toolbar)
struct tabBar: View {
var body: some View {
TabView {
ContentView().tabItem {
Image(systemName: "paperplane.fill")
Text("tabBar")
}
}
.toolbar {
ToolbarItem(placement: .bottomBar, content: {
Button(action: {
}){
Text("toolBar1")
}
})
ToolbarItem(placement: .bottomBar, content: {
Button() {
} label: {
Text("toolBar2")
}
})
}
}
}
For iOS 16 and above, you can use the toolbar(_:for:) method to toggle between visible and hidden states. Also, don't forget to wrap the view in a NavigationView, or else, setting the visibility of the bottom toolbar won't work.
import SwiftUI
struct ContentView: View {
#State var shouldShowTabBar = false
var body: some View {
NavigationView {
TabView {
Group {
Button("Switch Between Tab Bar and Toolbar") {
shouldShowTabBar.toggle()
}
.tabItem {
Label("Tab 1", systemImage: "list.dash")
}
Text("Tab 2")
.tabItem {
Label("Tab 2", systemImage: "square.and.pencil")
}
}
.toolbar {
ToolbarItem(placement: .bottomBar) {
Button {
} label: {
Text("Toolbar Button")
}
}
}
.toolbar(shouldShowTabBar ? .visible : .hidden, for: .tabBar)
.toolbar(shouldShowTabBar ? .hidden : .visible, for: .bottomBar)
}
}
}
}
If you have to support iOS 14 and 15, you can check every item if it should be visible and hide/show them one by one.
import SwiftUI
struct ContentView: View {
#State var shouldShowTabBar = false
var body: some View {
NavigationView {
TabView {
Group {
Button("Switch Between Tab Bar and Toolbar") {
shouldShowTabBar.toggle()
}
.tabItem {
if shouldShowTabBar {
Label("Tab 1", systemImage: "list.dash")
}
}
Text("Tab 2")
.tabItem {
if shouldShowTabBar {
Label("Tab 2", systemImage: "square.and.pencil")
}
}
}
.toolbar {
ToolbarItem(placement: .bottomBar) {
if !shouldShowTabBar {
Button {
} label: {
Text("Toolbar Button")
}
}
}
}
}
}
}
}
Related
I have two views embedded in a TabView and a third view activated by a ToolbarItem in a navigationStack.
problem 1)
When I tap on plus button I navigate to my addView, but I still can see the tabs at the bottom.
problem 2)
after many test I found that if put the tabView code in MainView Inside a NavigationStack, I solve problem 1) but each time I dismiss from a detailView from a row in ContentView, the navigation Item disappears.
the main view for the tabview
struct MainView: View {
var body: some View {
TabView {
ContentView()
.tabItem {
Label("List", systemImage: "list.dash")
}
SettingsView()
.tabItem {
Label("Settings", systemImage: "gearshape.fill")
}
}
}
}
the ContentView (a list of lessons, navigationDestination goes to a detail view)
struct ContentView: View {
#Environment(\.managedObjectContext) var moc
#FetchRequest (sortDescriptors: [
SortDescriptor(\.lessonNuber, order: .reverse)
], predicate: nil) var lessons: FetchedResults<Lesson>
#State var showAddView = false
var body: some View {
NavigationStack {
VStack {
List {
ForEach(lessons, id: \.self) { lesson in
NavigationLink {
DetailView(lesson: lesson)
} label: {
HStack {
Text("\(lesson.lessonNuber)")
.font(.title)
Text( "\(lesson.un_notion)")
.font(.body)
}
}
}
}
// .background(
// NavigationLink(destination: AddView(), isActive: $showAddView) {
// AddView()
// }
// )
.navigationDestination(isPresented: $showAddView) {
AddView()
}
.toolbar {
ToolbarItem(placement: .navigationBarLeading) {
Button {
showAddView = true
} label: {
Label("Add Lesson", systemImage: "plus")
}
}
}
}
.padding()
}
}
}
I am having a lot of buggy behavior on .searchable, on iOS 16.1 (Xcode 14.1). As you can see in the screenshot below. When entering a view with a .searchable component it will overlap with the view in transition and then disappears.
I am trying to make the code as basic as possible.
struct ContentView: View {
var body: some View {
NavigationStack {
List {
NavigationLink {
Mailbox().navigationTitle("Inkomend")
} label: { Label("Inkomend", systemImage: "tray") }
NavigationLink {
Mailbox().navigationTitle("Verstuurd")
} label: { Label("Verstuurd", systemImage: "paperplane") }
NavigationLink {
Mailbox().navigationTitle("Prullenmand")
} label: { Label("Prullenmand", systemImage: "trash") }
}
.navigationTitle("Postbussen")
.refreshable {}
}
}
}
struct Mailbox: View {
#State private var searchQuery: String = ""
var body: some View {
List {
NavigationLink {
Text("Detail")
} label: {
VStack(alignment: .leading) {
Text("Apple").font(.headline)
Text("Verify your account.")
Text("Fijn dat je deze belangrijke stap neemt om je account te verifiëren.").lineLimit(2).foregroundColor(.secondary)
}
}
}
.searchable(text: $searchQuery)
}
}
Use NavigationView instead of NavigationStack.
Like Latin Bhuva said, the new NavigationStack is not intended to be used in this way, a NavigationView would be more correct in this case.
struct ContentView: View {
var body: some View {
NavigationView {
List {
NavigationLink {
Mailbox().navigationTitle("Inkomend")
} label: { Label("Inkomend", systemImage: "tray") }
NavigationLink {
Mailbox().navigationTitle("Verstuurd")
} label: { Label("Verstuurd", systemImage: "paperplane") }
NavigationLink {
Mailbox().navigationTitle("Prullenmand")
} label: { Label("Prullenmand", systemImage: "trash") }
}
.navigationTitle("Postbussen")
.refreshable {}
}
}
}
I have a TabView with three views (triangle, square and circle) nested inside a navigation view and link. TabView works fine. I'd like to have toolbar buttons for only a specific tabview; say circle. The toolbar modifier adds the buttons on all the tabviews.
struct ContentView: View {
var body: some View {
NavigationView {
NavigationLink() {
TabView {
Text("triangle")
.tabItem {
Label("triangle", systemImage: "triangle")
}
Text("square")
.tabItem {
Label("square", systemImage: "square")
}
Text("circle")
.tabItem {
Label("circle", systemImage: "circle")
}
}
.navigationTitle("Tabs")
.toolbar {
ToolbarItemGroup(placement: .navigationBarTrailing) {
Button("About") {
print("About tapped!")
}
Button("Help") {
print("Help tapped!")
}
}
}
} label: {
Text("Hello!")
}
.navigationTitle("Title")
}
}
}
How can I set this up to only show toolbar buttons on one tabview only?
I suppose a secondary option (way less preferred) may be to disable the buttons on tabviews where they are not needed (if possible).
It can be done with a selection state for TabView and making visibility of specific toolbar buttons depending on that state.
Here is a demo. Tested with Xcode 13.4 / iOS 15.5
struct ContentView: View {
#State private var selection = 0 // << here !!
var body: some View {
NavigationView {
NavigationLink() {
TabView(selection: $selection) { // << here !!
Text("triangle")
.tabItem {
Label("triangle", systemImage: "triangle")
}.tag(0)
Text("square")
.tabItem {
Label("square", systemImage: "square")
}.tag(1)
Text("circle")
.tabItem {
Label("circle", systemImage: "circle")
}.tag(2)
}
.navigationTitle("Tabs")
.toolbar {
ToolbarItemGroup(placement: .navigationBarTrailing) {
if selection == 2 { // << here !!
Button("About") {
print("About tapped!")
}
Button("Help") {
print("Help tapped!")
}
}
}
}
} label: {
Text("Hello!")
}
.navigationTitle("Title")
}
}
}
Test code in GitHub
I want to use a ForEach loop to simplify the following code:
.toolbar {
ToolbarItem() {
Button {
}
label: {
Image(systemName: "magnifyingglass")
}
}
ToolbarItem() {
Button {
}
label: {
Image(systemName: "plus")
}
}
}
But it's not working. My approach only creates the "magnifyingglass" button.
My approach:
let toolbar = ["magnifyingglass", "plus"]
.toolbar {
ToolbarItem() {
ForEach(toolbar.indices) { index in
Button {
}
label: {
Image(systemName: toolbar[index])
}
}
}
}
you could try this:
struct ContentView: View {
let toolbar = ["magnifyingglass", "plus"]
var body: some View {
NavigationView {
Text("testing")
.toolbar {
ToolbarItem() {
HStack { // <--- here
ForEach(toolbar.indices) { index in
Button { }
label: { Image(systemName: toolbar[index]) }
}
}
}
}
}
}
}
import SwiftUI
struct ContentView: View {
let toolbar = ["magnifyingglass", "plus"]
var body: some View {
NavigationView {
Text("Toolbar")
.navigationTitle("")
.toolbar {
ToolbarItemGroup(placement: .navigationBarTrailing) {
ForEach(toolbar, id: \.self) { index in
Button {
} label: {
Image(systemName: ("\(index)"))
}
}
}
}
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
I suggest (not tested) to put the for loop outside of ToolbarItem() :
let toolbar = ["magnifyingglass", "plus"]
.toolbar {
ForEach(toolbar.indices) { index in
ToolbarItem() {
Button {
}
label: {
Image(systemName: toolbar[index])
}
}
}
}
My first view has a NavigationView with a Tab Bar View
struct TestView: View {
var body: some View {
NavigationView {
TabTestView()
}
}
}
In the Tab Bar, I have two views, say TestView1 and TestView2.
struct TabTestView: View {
var body: some View {
TabView {
TestView1()
.tabItem {
Label("Test 1", systemImage: "list.dash")
}
TestView2()
.tabItem {
Label("Test 2", systemImage: "plus")
}
}
}
}
I now need to add a toolbar button to TestView1. Here is my attempt to do so:
struct TestView1: View {
var body: some View {
Text("Hello World")
.navigationTitle("Test View 1")
.toolbar {
ToolbarItem(placement: .navigationBarTrailing) {
Button("Save") {
print("Toolbar button click")
}
}
}
}
}
While this adds the Navigation Title to the page, the toolbar button is not added, as shown in the screenshot below:
If I, however, add the toolbar to the TabTestView, as below, the toolbar button does show up.
struct TabTestView: View {
var body: some View {
TabView {
TestView1()
.tabItem {
Label("Test 1", systemImage: "list.dash")
}
TestView2()
.tabItem {
Label("Test 2", systemImage: "plus")
}
}
.toolbar {
ToolbarItem(placement: .navigationBarTrailing) {
Button("Save") {
print("Toolbar button click")
}
}
}
}
}
This is a problem - the code to be executed on the button click depends upon variables in TestView1, and adding the toolbar to the TabTestView doesn't feel right, semantically the toolbar "belongs" in TestView1.
Any thoughts would be greatly appreciated.
Once I had working code, I realized I had seen this before. It appears to be a bug in SwiftUI. TabView and NavigationView don't play well together. You will find a lot of my answer will say one NavigationViews at the top of the view hierarchy, which is what you have done. That will not work in this instance. The workaround is to put a NavigationViews in each of the views in the tabs separately for this to work. You will still get all of the correct NavigationViews behavior for each of those hierarchies, but it is duplicative. I don't think I ever filed a Radar on it, but I will today and will post the Radar number here.
struct TestView: View {
var body: some View {
// NavigationView { //Remove this NavigationView
TabTestView()
// }
}
}
struct TabTestView: View {
var body: some View {
TabView {
TestView1()
.tabItem {
Label("Test 1", systemImage: "list.dash")
}
TestView2()
.tabItem {
Label("Test 2", systemImage: "plus")
}
}
}
}
struct TestView1: View {
var body: some View {
NavigationView { // Add here
Text("Hello World 1")
.navigationTitle("Test View 1")
.toolbar {
ToolbarItem(placement: .navigationBarTrailing) {
Button("Save") {
print("Toolbar button click")
}
}
}
}
}
}
struct TestView2: View {
var body: some View {
NavigationView { // Add here
Text("Hello World 2")
.navigationTitle("Test View 2")
.toolbar {
ToolbarItem(placement: .navigationBarTrailing) {
Button("Save") {
print("Toolbar button click")
}
}
}
}
}
}
The Radar number is FB9727010.