SwiftUI how to set image for NavigationBar titleView like in UIKit? - swiftui

I want to set an image in the titleView of NavigationBar in SwiftUI, as we do in UIKit
navigationItem.titleView = UIImageView(image: UIImage(named: "logo"))
this is how we do it in UIKit.
anyone know how to do it?

Here's how to do it:
Add SwiftUIX to your project.
Set your custom title view via View.navigationBarTitleView(_:displayMode:)
Example code:
struct ContentView: View {
public var body: some View {
NavigationView {
Text("Hello World")
.navigationBarTitleView(MyView())
}
}
}

Simple, Just add your root view into ZStack with top alignment and add your custom center view after root view
struct CenterNavigattionBar: View {
var body: some View {
ZStack(alignment: .top){
//Root view with empty Title
NavigationView {
Text("Test Navigation")
.navigationBarTitle("",displayMode: .inline)
.navigationBarItems(leading: Text("Cancle"), trailing: Text("Done"))
}
//Your Custom Title
VStack{
Text("add title and")
.font(.headline)
Text("subtitle here")
.font(.subheadline)
}
}
}
}
Before Image
After Image

Just use a toolbar.
You can add any views
import SwiftUI
struct HomeView: View {
// MARK: - Initializer
init() {
let appearance = UINavigationBar.appearance()
appearance.isOpaque = true
appearance.isTranslucent = false
appearance.barTintColor = UIColor(named: "background")
appearance.shadowImage = UIImage()
}
// MARK: - View
// MARK: Public
var body: some View {
NavigationView {
VStack(spacing: 20) {
Text("Hello")
Text("Navigation Bar Test")
}
.navigationBarTitleDisplayMode(.inline)
.navigationBarItems(leading: leadingBarButtonItems, trailing: trailingBarButtonItems)
.toolbar {
ToolbarItem(placement: .principal) {
VStack {
Text("Title").font(.headline)
Text("Subtitle").font(.subheadline)
}
}
}
}
}
// MARK: Private
private var leadingBarButtonItems: some View {
Button(action: {
}) {
Text("Left Button")
.font(.system(size: 12, weight: .medium))
}
}
private var trailingBarButtonItems: some View {
HStack {
Button(action: {
}) {
Text("R1\nButton")
.font(.system(size: 12, weight: .medium))
.multilineTextAlignment(.center)
}
Button(action: {
}) {
Text("R2\nButton")
.font(.system(size: 12, weight: .medium))
.multilineTextAlignment(.center)
}
}
}
}

Currently, you can't.
There are two overloads for .navigationBarTitle(), taking either a Text view or a type conforming to StringProtocol. You can't even pass in a modified view like Text("Title").font(.body). This would be a great feature, I'd submit a feature request: http://feedbackassistant.apple.com

Maybe this works for you?
Basically:
Use GeometryReader to get the width of the screen
Have NavigationBarItems(leading: HStack {Spacer() Image("name").resizable().frame(width:..., height: ..., alignment: .center Spacer()}.frame(width:geometry.size.width)
Example code:
struct ContentView: View {
var body: some View {
NavigationView {
GeometryReader { geometry in
Text("Hello, world!")
.padding()
.navigationTitle("test")
.navigationBarItems(leading: HStack {
Spacer()
Image("money")
.resizable()
.frame(width: 50, height: 50, alignment: .center)
Spacer()
}
.frame(width: geometry.size.width)
)
}
}
}
}

Try this...
How to put a logo in NavigationView in swiftui?
This shows how to handle adding an Image to NavigationView in SwiftUI. Hope it helps.

Related

SwiftUI - Sheet doesn't work in Navigation View

Having issues with a NavigationView and Sheet.
I want to use not full-size sheet but bottom sheet and connect LoginView() and SignView() through sheet. At this time, frame of SignView never follow sheet.
So I tried two ways to solve.
First, LoginView: Has NavigationView out of the sheet and NavigationLink in sheet . But it didn't work.
So I put NavigationView in sheet, it works. But the height of the destination View becomes like sheet.
How can I solve the problem proper way? Thanks!
import SwiftUI
struct LoginView:View{
#State var isPlus : Bool = false
var body: some View{
NavigationView{
VStack(alignment:.center){
Spacer()
ZStack{
Button(action:{
self.isPlus = true})
{
Text("Sign up")
.padding(.horizontal,23)
.padding(20)
.font(.system(size: 25))
.fontWeight(.heavy)
.background(Color.blue)
.foregroundColor(Color.white)
.cornerRadius(10)
}
.sheet(isPresented: $isPlus){
VStack{
NavigationLink(destination:SignView()){
Text("MyCard")
.font(.title)
.foregroundColor(Color.black)
}
}
.presentationDetents([.height(300)])
}
}
}
}
}
}
Hope you can get solution from the below code snippet.
By this way we can use sheet in the NavigationView.
struct LoginView: View {
#State var isPlus : Bool = false
#State private var showingSheet = false
var body: some View {
NavigationView {
VStack(alignment:.center) {
Spacer()
ZStack{
Button(action:{
self.isPlus = true})
{
Text("First Sheet View")
.padding(.horizontal,23)
.padding(20)
.font(.system(size: 25))
.background(Color.blue)
.foregroundColor(Color.white)
.cornerRadius(10)
}
.sheet(isPresented: $isPlus){
VStack{
NavigationView {
NavigationLink(destination:SignView()){
Button(action:{
self.showingSheet = true})
{
Text("Full Sheet View")
.padding(.horizontal,23)
.padding(20)
.font(.system(size: 25))
.background(Color.blue)
.foregroundColor(Color.white)
.cornerRadius(10)
}
.sheet(isPresented: $showingSheet){
Button("Close"){
showingSheet = false
isPlus = false
}
.presentationDetents([.large])
}
}
}
.presentationDetents([.medium])
.edgesIgnoringSafeArea(.all)
}
}
}
}
}
}
}

Show BottomPlayerView above TabView in SwiftUI

I'm learning swiftUI and I want to make a music app.
I created a view which going to be above the tabView, but I want it to be shown only if user start playing a music.
My App, I use ZStack for bottomPlayer, and I share the bottomPlayer variable through .environmentObject(bottomPlayer) so the child views can use it:
class BottomPlayer: ObservableObject {
var show: Bool = false
}
#main
struct MyCurrentApp: App {
var bottomPlayer: BottomPlayer = BottomPlayer()
var audioPlayer = AudioPlayer()
var body: some Scene {
WindowGroup {
ZStack(alignment: Alignment(horizontal: .center, vertical: .bottom)) {
TabBar()
if bottomPlayer.show {
BottomPlayerView()
.offset(y: -40)
}
}
.environmentObject(bottomPlayer)
}
}
}
The BottomPlayerView (above the TabView)
struct BottomPlayerView: View {
var body: some View {
HStack {
Image("cover")
.resizable()
.frame(width: 50, height: 50)
VStack(alignment: .leading) {
Text("Artist")
.foregroundColor(.orange)
Text("Song title")
.fontWeight(.bold)
}
Spacer()
Button {
print("button")
} label: {
Image(systemName: "play")
}
.frame(width: 60, height: 60)
}
.frame(maxWidth: .infinity, maxHeight: 60)
.background(Color.white)
.onTapGesture {
print("ontap")
}
}
}
My TabView:
struct TabBar: View {
var body: some View {
TabView {
AudiosTabBarView()
VideosTabBarView()
SearchTabBarView()
}
}
}
And In my SongsView, I use the EnvironmentObject to switch on the bottomPlayerView
struct SongsView: View {
#EnvironmentObject var bottomPlayer: BottomPlayer
var body: some View {
NavigationView {
VStack {
Button {
bottomPlayer.show = true
} label: {
Text("Show Player")
}
}
.listStyle(.plain)
.navigationBarTitle("Audios")
}
}
}
The problem is the bottomPlayer.show is actually set to true, but doesn't appear ...
Where I am wrong?
In your BottomPlayer add theĀ #Published attribute before the show boolean.
This creates a publisher of this type.
apple documentation

Adding a Subtitle under NavigationTitle

Let's say I have the following code:
struct SwiftUIView: View {
var body: some View {
NavigationView {
VStack {
Text("Hello")
Text("World")
}
.navigationTitle("SwiftUI")
}
}
}
I'd like to add a smaller subtitle right under SwiftUI. I tried adding something like .navigationSubtitle("") but it doesn't exist. I also tried reading the documentation, and it does mention func navigationSubtitle(_ subtitle: Text) -> some View, but I'm just not sure how to add that to my code. Thanks in advance!
You can add a ToolbarItem with the principal placement:
struct SwiftUIView: View {
var body: some View {
NavigationView {
VStack {
Text("Hello")
Text("World")
}
// .navigationTitle("SwiftUI") this won't make any changes now
.toolbar {
ToolbarItem(placement: .principal) {
VStack {
Text("title")
Text("subtitle")
}
}
}
}
}
}
The downside is that it overrides the navigation title, so any changes made with navigationTitle won't visible.
You can do something like:
.navigationBarItems(leading:
VStack(alignment: .leading, spacing: 5) {
Text("SwiftUI")
.font(.system(size: 35, weight: .semibold, design: .default))
Text("Subtitle")
}
)
Using a VStack in a toolbar causes the child view to display < Back for the the back navigation button rather than the title of the parent view. What I ended up doing is:
.navigationTitle("Title") // Will not be shown, but will be used for the back button of the child view
.toolbar {
ToolbarItem(placement: .principal) {
VStack {
Text("Real Title").font(.headline)
Text("Subtitle").font(.subheadline)
}
}
}
I ended up doing something different: instead of making "SwiftUI" a navigation title, I just put it inside a VStack with the rest of the body, like so:
struct SwiftUIView: View {
var body: some View {
NavigationView {
VStack {
//Header
VStack(alignment: .leading, spacing: 5) {
Text("SwiftUI")
.font(.system(size: 35, weight: .semibold, design: .default))
Text("Subtitle")
}
.padding()
.padding(.leading, -110) //I'm still not sure how to give it a leading alignment without hardcoding it
Divider()
Spacer()
//Body
VStack {
Text("Hello")
Text("World")
}
Spacer()
//Navbar title
}
}
}}
Thank you all for the help regardless!

SwiftUI Popover Size is not expanding to fit content

Here is my code
struct ContentView: View {
#State var showingPopover = false
var body: some View {
VStack {
Spacer()
Text("Hello World")
Spacer()
HStack {
Spacer()
Button {
self.showingPopover.toggle()
} label: {
Image(systemName: "plus.circle")
}
.popover(isPresented: $showingPopover) {
List(0..<100) { Text("\($0)") }
}.padding(30)
}
}
}
}
This should produce a really nice popover coming from the plus button. But all I get is a really squashed down popover.
Any idea what I am missing here? Is there a way to tell the popover to expand more (without specifying a size)?
You may use a ScrollView and ForEach instead of a List:
struct ContentView: View {
#State var showingPopover = false
var body: some View {
VStack {
Spacer()
Text("Hello World")
Spacer()
HStack {
Spacer()
Button(action: {
self.showingPopover.toggle()
}) {
Image(systemName: "plus.circle")
}
.padding(30)
}
}
// can be attached to the button as well (as in the question)
.popover(isPresented: $showingPopover,
attachmentAnchor: .point(.bottomTrailing),
arrowEdge: .bottom) {
ScrollView(.vertical, showsIndicators: false) {
ForEach(0 ..< 100) {
Text("\($0)")
}
}
}
}
}
You can provide a custom frame for the List. Also, don't forget to embed List inside a ScrollView if you want it to scroll.
ScrollView {
List(0..<100) {
Text("\($0)")
}
.frame(width: 100, height: 250)
}

How do I properly use NavigationView in a ZStack?

I am trying to add some filter options to sit at the top of my view, above the NavigationView. I wrote the following code that mostly does what I want, however it disabled the ability to click on the rows to get to the detailed view. I assume this is because my filter buttons are on top of the ZStack, but I'm not sure how else to get this to work.
Here is the code I wrote:
import SwiftUI
struct BonusList: View {
var bonuses = sampleBonusData
#State var showSettings = false
#State var showBonuses = false
#State var bonusEarned = true
#State var showStatePicker = false
#State var showCategoryPicker = false
var body: some View {
ZStack {
NavigationView {
List(bonuses) { item in
NavigationLink(destination: BonusDetail(bonusName: item.bonusName, bonusCode: item.bonusCode, city: item.city, sampleImage: item.sampleImage)) {
HStack(spacing: 12.0) {
Image(item.sampleImage)
.resizable()
.aspectRatio(contentMode: .fill)
.frame(width: 60, height: 60)
.background(Color.white)
.cornerRadius(15)
VStack(alignment: .leading) {
HStack {
Text(item.bonusName)
.font(.headline)
Spacer()
Image(systemName: "checkmark.shield")
.opacity(self.bonusEarned ? 100 : 0)
}
Text("\(item.city), \(item.state)")
.font(.subheadline)
.frame(height: 25.0)
HStack {
Text(item.bonusCategory)
.font(.caption)
.fontWeight(.bold)
.foregroundColor(.gray)
.padding(.top, 4)
Spacer()
Text(item.bonusCode)
.font(.caption)
.fontWeight(.bold)
.foregroundColor(.gray)
.padding(.top, 4)
}
}
}
}
}
.navigationBarTitle(Text("Bonuses"))
// .navigationBarHidden(true)
}
.saturation(self.bonusEarned ? 0 : 1)
HStack {
FilterByCategory(showCategoryPicker: $showCategoryPicker)
Spacer()
FilterByState(showStatePicker: $showStatePicker)
}
StatePicker(showStatePicker: $showStatePicker)
CategoryPicker(showCategoryPicker: $showCategoryPicker)
}
}
}
This is what it looks like when I run it:
If I'm understanding correctly, you have a view or two which sit higher in the ZStack that are off canvas and come in when those buttons are tapped?
You could consider using a modal and setting the view you want to show for each button as the view for the modal. This will keep your views off screen and still allow interaction with your list. Here's what I've done...
On the main view
import SwiftUI
struct MainView: View {
#State private var isPresented = false
var body: some View {
NavigationView {
VStack {
//...
}
//Modal
.sheet(isPresented: $isPresented, content: {
AddItem(showModal: self.$isPresented)
})
}
}
}
The modal's view
import SwiftUI
struct AddItem: View {
#Binding var showModal: Bool
var body: some View {
VStack {
Button(action: {
self.showModal = false
}, label: {
Text("Cancel")
})
}
}
}