I am trying to make a sidebar in swiftUI that is triggered in and out from the side with a button
I have been able to make it pop in and out from the bottom using a side modifier like this
struct sideBarExample: View {
#State var showSideBar = false
var mainView: some View{
Rectangle()
.foregroundColor(.blue)
.overlay(Text("Main View"))
}
var sideBar: some View{
Rectangle()
.foregroundColor(.green)
.overlay(Text("side bar"))
}
var body: some View {
NavigationStack{
mainView
.sheet(isPresented: $showSideBar, content: {
sideBar
})
.toolbar {
ToolbarItem(placement: .navigationBarLeading) {
Button {
showSideBar.toggle()
} label: {
Image(systemName: "sidebar.left")
}
}
}
}
}
}
But ideally it should be from the side
For iPhone you have to build your own sidebar, just overlay it in a ZStack and animate in with .transition.
struct ContentView: View {
#State private var showSideBar = false
var mainView: some View{
Rectangle()
.foregroundColor(.gray)
.overlay(Text("Main View"))
}
var sideBar: some View{
Rectangle()
.foregroundColor(.green)
.overlay(Text("side bar"))
.frame(width: 200)
}
var body: some View {
NavigationStack{
ZStack(alignment: .leading) {
mainView
if showSideBar {
sideBar
.transition(.move(edge: .leading))
}
}
.toolbar {
ToolbarItem(placement: .navigationBarLeading) {
Button {
withAnimation {
showSideBar.toggle()
}
} label: {
Image(systemName: "sidebar.left")
}
}
}
}
}
}
You can use the offset view modifier to move the sidebar around
Here is an example
struct SideBarExample: View {
#State var showSideBar = false
var mainView: some View{
Rectangle()
.foregroundColor(.blue)
.overlay(Text("Main View"))
}
var sideBar: some View{
HStack{
Rectangle()
.foregroundColor(.green)
.overlay(Text("side bar"))
.frame(width:250)
Spacer()
}
}
var body: some View {
NavigationStack{
ZStack{
mainView
sideBar
.offset(CGSize(width: showSideBar ? 0:-250, height: 0))
}
.toolbar {
ToolbarItem(placement: .navigationBarLeading) {
Button {
withAnimation {
showSideBar.toggle()
}
} label: {
Image(systemName: "sidebar.left")
}
}
}
}
}
}
Here is what that looks like
I'm trying to have multiple expandable views with animation inside a VStack. I have the following code:
struct ContentView: View {
var body: some View {
NavigationView {
ScrollView {
VStack {
ExpandableView(headerTitle: "First")
ExpandableView(headerTitle: "Second")
Spacer()
}
}
}
}
}
And the ExpandableView:
struct ExpandableView: View {
let headerTitle: String
#State private var collapsed: Bool = true
var body: some View {
Button(
action: {
self.collapsed.toggle()
},
label: {
VStack(spacing: 2) {
ZStack {
Rectangle()
.fill(.gray)
VStack {
Text("\(headerTitle) Header")
if !collapsed {
HStack {
Text("Text A")
Text("Text B")
}
}
}
}
.frame(height: collapsed ? 52 : 80)
ZStack(alignment: .top) {
Rectangle()
.fill(.gray)
.frame(height: 204)
VStack {
Text("Content A")
Text("Content B")
Text("Content C")
}
}
.frame(maxHeight: collapsed ? 0 : .none)
.clipped()
}
}
)
.buttonStyle(PlainButtonStyle())
.animation(.easeOut, value: collapsed)
}
}
The result is this:
As you can see if I open the last expandableView is opens correctly. However if I open the first one when the second is closed, it actually opens the second. It only opens correctly the first one if the second is already open. It seems the VStack is not rendering correctly itself. Any ideas why this happening?
Thanks for the help.
I migth be the way the buttons works. Here is a cleaner solution:
struct ExpandableView: View {
let headerTitle: String
#State private var collapsed: Bool = true
var body: some View {
VStack(spacing: 2) {
Button(
action: {
withAnimation(.easeOut){
self.collapsed.toggle()
}
},
label: {
VStack {
Text("\(headerTitle) Header")
if !collapsed {
HStack {
Text("Text A")
Text("Text B")
}
}
}.frame(maxWidth: .infinity)
})
.buttonStyle(.borderedProminent)
.tint(.gray)
if(!self.collapsed) {
VStack {
Divider().background(.black)
Text("Content A")
Text("Content B")
Text("Content C")
}
}
Spacer()
}
.frame(height: collapsed ? 52 : 204)
.frame(maxWidth: .infinity)
.background(.gray)
.padding()
}
}
I have tried multiple different ways to make a tab bar but for some reason, it messes up my views either preventing them from scrolling or their functionality completely corrupts here are two of the ways I tried why is this happening? They both allow me to switch between views but they bot alter the functionality or the performance of my views and it is confusing as to why it should just go from one view to the other no problem.
import SwiftUI
struct Home: View {
#State var selectedTab = "Global"
var edges = UIApplication.shared.windows.first?.safeAreaInsets
var body: some View {
GeometryReader { geometry in
ZStack(alignment: Alignment(horizontal: .center, vertical: .bottom)) {
ZStack{
SettingsView()
.opacity(selectedTab == "Settings" ? 1 : 0)
Ether()
.opacity(selectedTab == "Ether" ? 1 : 0)
PostView()
.opacity(selectedTab == "Global" ? 1 : 0)
}
.frame(maxWidth: .infinity, maxHeight: .infinity)
.frame(width: geometry.size.width, height: geometry.size.height)
CustomTabbar(selectedTab: $selectedTab)
.padding(.bottom,edges!.bottom == 0 ? 15 : 0)
}
.background(Color(.black).ignoresSafeArea(.all, edges: .all))
.ignoresSafeArea(.all, edges: .bottom)
.navigationBarHidden(true)
}
}
}
import SwiftUI
struct Home: View {
// #State var selectedTab = "Global"
var edges = UIApplication.shared.windows.first?.safeAreaInsets
var body: some View {
TabView {
PostView()
.tabItem {
Image(systemName: "flame")
Text("Global")
}
Ether()
.tabItem {
Image(systemName: "flame.fill")
Text("Ether")
}
SettingsView()
.tabItem {
Image(systemName: "person")
Text("Profile")
}
}
}
}
import SwiftUI
struct CustomTabbar: View {
#Binding var selectedTab : String
var body: some View {
HStack(spacing: 0){
TabButton(title: "Global", selectedTab: $selectedTab)
TabButton(title: "Ether", selectedTab: $selectedTab)
TabButton(title: "Settings", selectedTab: $selectedTab)
}
.padding(.horizontal)
.background(Color.white)
.clipShape(Capsule())
}
}
struct TabButton : View {
var title : String
#Binding var selectedTab : String
var body: some View{
Button(action: {selectedTab = title}) {
VStack(spacing: 5){
Image(title)
.renderingMode(.template)
Text(title)
.font(.caption)
.fontWeight(.bold)
.foregroundColor(selectedTab == title ? Color(.blue) : .gray)
.padding(.horizontal)
.padding(.vertical,10)
}
}
}
}
I'm working on a profile page and it has to render a list of previous runs and so I'm using a for each to do that. But for some reason, this view pushes all the other information out of view and I'm not sure why. Screenshot of the issue:
Here's the code:
struct AccountView: View {
#EnvironmentObject var session: SessionStore
#State var isShowingAccountDetails = false
#ObservedObject var tracks = RunsService()
var body: some View {
VStack(alignment: .leading) {
AccountHeader(tracks: tracks)
Text("This Week")
.font(.title)
.bold()
.padding(.leading)
PersonalWeeklyCard()
.frame(height: 150)
.padding(.horizontal)
Text("Previous runs")
.font(.title)
.bold()
.padding(.leading)
Spacer()
VStack{
ForEach(tracks.myRuns, id: \.id) { track in
RunCard(track: track)
}
}
}
.onAppear(perform: tracks.fetchRuns)
.navigationBarHidden(true)
.navigationBarItems(trailing: Button(action: {
isShowingAccountDetails = true
}, label: {Text("Details")}))
.sheet(isPresented: $isShowingAccountDetails) {
AccountDetails(session: session)
}
}
}
I am trying to push from login view to detail view but not able to make it.even navigation bar is not showing in login view. How to push on button click in SwiftUI? How to use NavigationLink on button click?
var body: some View {
NavigationView {
VStack(alignment: .leading) {
Text("Let's get you signed in.")
.bold()
.font(.system(size: 40))
.multilineTextAlignment(.leading)
.frame(width: 300, height: 100, alignment: .topLeading)
.padding(Edge.Set.bottom, 50)
Text("Email address:")
.font(.headline)
TextField("Email", text: $email)
.frame(height:44)
.accentColor(Color.white)
.background(Color(UIColor.darkGray))
.cornerRadius(4.0)
Text("Password:")
.font(.headline)
SecureField("Password", text: $password)
.frame(height:44)
.accentColor(Color.white)
.background(Color(UIColor.darkGray))
.cornerRadius(4.0)
Button(action: {
print("login tapped")
}) {
HStack {
Spacer()
Text("Login").foregroundColor(Color.white).bold()
Spacer()
}
}
.accentColor(Color.black)
.padding()
.background(Color(UIColor.darkGray))
.cornerRadius(4.0)
.padding(Edge.Set.vertical, 20)
}
.padding(.horizontal,30)
}
.navigationBarTitle(Text("Login"))
}
To fix your issue you need to bind and manage tag with NavigationLink, So create one state inside you view as follow, just add above body.
#State var selection: Int? = nil
Then update your button code as follow to add NavigationLink
NavigationLink(destination: Text("Test"), tag: 1, selection: $selection) {
Button(action: {
print("login tapped")
self.selection = 1
}) {
HStack {
Spacer()
Text("Login").foregroundColor(Color.white).bold()
Spacer()
}
}
.accentColor(Color.black)
.padding()
.background(Color(UIColor.darkGray))
.cornerRadius(4.0)
.padding(Edge.Set.vertical, 20)
}
Meaning is, when selection and NavigationLink tag value will match then navigation will be occurs.
I hope this will help you.
iOS 16+
Note: Below is a simplified example of how to present a new view. For a more advanced generic example please see this answer.
In iOS 16 we can access the NavigationStack and NavigationPath.
Usage #1
A new view is activated by a simple NavigationLink:
struct ContentView: View {
var body: some View {
NavigationStack {
NavigationLink(value: "NewView") {
Text("Show NewView")
}
.navigationDestination(for: String.self) { view in
if view == "NewView" {
Text("This is NewView")
}
}
}
}
}
Usage #2
A new view is activated by a standard Button:
struct ContentView: View {
#State private var path = NavigationPath()
var body: some View {
NavigationStack(path: $path) {
Button {
path.append("NewView")
} label: {
Text("Show NewView")
}
.navigationDestination(for: String.self) { view in
if view == "NewView" {
Text("This is NewView")
}
}
}
}
}
Usage #3
A new view is activated programmatically:
struct ContentView: View {
#State private var path = NavigationPath()
var body: some View {
NavigationStack(path: $path) {
Text("Content View")
.navigationDestination(for: String.self) { view in
if view == "NewView" {
Text("This is NewView")
}
}
}
.onAppear {
path.append("NewView")
}
}
}
iOS 13+
The accepted answer uses NavigationLink(destination:tag:selection:) which is correct.
However, for a simple view with just one NavigationLink you can use a simpler variant: NavigationLink(destination:isActive:)
Usage #1
NavigationLink is activated by a standard Button:
struct ContentView: View {
#State var isLinkActive = false
var body: some View {
NavigationView {
VStack(alignment: .leading) {
...
NavigationLink(destination: Text("OtherView"), isActive: $isLinkActive) {
Button(action: {
self.isLinkActive = true
}) {
Text("Login")
}
}
}
.navigationBarTitle(Text("Login"))
}
}
}
Usage #2
NavigationLink is hidden and activated by a standard Button:
struct ContentView: View {
#State var isLinkActive = false
var body: some View {
NavigationView {
VStack(alignment: .leading) {
...
Button(action: {
self.isLinkActive = true
}) {
Text("Login")
}
}
.navigationBarTitle(Text("Login"))
.background(
NavigationLink(destination: Text("OtherView"), isActive: $isLinkActive) {
EmptyView()
}
.hidden()
)
}
}
}
Usage #3
NavigationLink is hidden and activated programmatically:
struct ContentView: View {
#State var isLinkActive = false
var body: some View {
NavigationView {
VStack(alignment: .leading) {
...
}
.navigationBarTitle(Text("Login"))
.background(
NavigationLink(destination: Text("OtherView"), isActive: $isLinkActive) {
EmptyView()
}
.hidden()
)
}
.onAppear {
self.isLinkActive = true
}
}
}
Here is a GitHub repository with different SwiftUI extensions that makes navigation easier.
Another approach:
SceneDelegate
if let windowScene = scene as? UIWindowScene {
let window = UIWindow(windowScene: windowScene)
window.rootViewController = UIHostingController(rootView: BaseView().environmentObject(ViewRouter()))
self.window = window
window.makeKeyAndVisible()
}
BaseView
import SwiftUI
struct BaseView : View {
#EnvironmentObject var viewRouter: ViewRouter
var body: some View {
VStack {
if viewRouter.currentPage == "view1" {
FirstView()
} else if viewRouter.currentPage == "view2" {
SecondView()
.transition(.scale)
}
}
}
}
#if DEBUG
struct MotherView_Previews : PreviewProvider {
static var previews: some View {
BaseView().environmentObject(ViewRouter())
}
}
#endif
ViewRouter
import Foundation
import Combine
import SwiftUI
class ViewRouter: ObservableObject {
let objectWillChange = PassthroughSubject<ViewRouter,Never>()
var currentPage: String = "view1" {
didSet {
withAnimation() {
objectWillChange.send(self)
}
}
}
}
FirstView
import SwiftUI
struct FirstView : View {
#EnvironmentObject var viewRouter: ViewRouter
var body: some View {
VStack {
Button(action: {self.viewRouter.currentPage = "view2"}) {
NextButtonContent()
}
}
}
}
#if DEBUG
struct FirstView_Previews : PreviewProvider {
static var previews: some View {
FirstView().environmentObject(ViewRouter())
}
}
#endif
struct NextButtonContent : View {
var body: some View {
return Text("Next")
.foregroundColor(.white)
.frame(width: 200, height: 50)
.background(Color.blue)
.cornerRadius(15)
.padding(.top, 50)
}
}
SecondView
import SwiftUI
struct SecondView : View {
#EnvironmentObject var viewRouter: ViewRouter
var body: some View {
VStack {
Spacer(minLength: 50.0)
Button(action: {self.viewRouter.currentPage = "view1"}) {
BackButtonContent()
}
}
}
}
#if DEBUG
struct SecondView_Previews : PreviewProvider {
static var previews: some View {
SecondView().environmentObject(ViewRouter())
}
}
#endif
struct BackButtonContent : View {
var body: some View {
return Text("Back")
.foregroundColor(.white)
.frame(width: 200, height: 50)
.background(Color.blue)
.cornerRadius(15)
.padding(.top, 50)
}
}
Hope this helps!
Simplest and most effective solution is :
NavigationLink(destination:ScoresTableView()) {
Text("Scores")
}.navigationBarHidden(true)
.frame(width: 90, height: 45, alignment: .center)
.foregroundColor(.white)
.background(LinearGradient(gradient: Gradient(colors: [Color.red, Color.blue]), startPoint: .leading, endPoint: .trailing))
.cornerRadius(10)
.contentShape(Rectangle())
.padding(EdgeInsets(top: 16, leading: UIScreen.main.bounds.size.width - 110 , bottom: 16, trailing: 20))
ScoresTableView is the destination view.
In my opinion a cleaner way for iOS 16+ is using a state bool to present the view.
struct ButtonNavigationView: View {
#State private var isShowingSecondView : Bool = false
var body: some View {
NavigationStack {
VStack{
Button(action:{isShowingSecondView = true} ){
Text("Show second view")
}
}.navigationDestination(isPresented: $isShowingSecondView) {
Text("SecondView")
}
}
}
}
I think above answers are nice, but simpler way should be:
NavigationLink {
TargetView()
} label: {
Text("Click to go")
}