I have a sidebar in NavigationView with searchable and a grouped list that both inset properly to the largeTitle. However when I want to place additional views in the sidebar, I have trouble aligning them to match the width/insets of the searchable text field or the list sections or the largeTitle. padding(.horizontal) doesn't match.
How can I add padding or insets to match these system elements? I've tried using layoutMarginGuide and readableContentGuide and these have wider layouts that don't match the search bar or table. See the screenshot - how can I align the Picker to the largeTitle or list row inset?
And here is sample code
import SwiftUILayoutGuides
struct SidebarComprehensionTab: View {
#SceneStorage("comprehensionItemSelection") private var comprehensionSelection: String?
var body: some View {
HStack(alignment: .top, spacing: 0) {
VStack(alignment: .leading, spacing: 0) {
Picker("", selection: $comprehensionSelection) {
Text("Vocabulary").tag(1)
Text("Kanji").tag(2)
Text("Lookups").tag(3)
}
.pickerStyle(.segmented)
// .fitToReadableContentWidth()
.padding(.horizontal) // Neither of these approaches work.
}
}
.searchable(...)
}
}
Related
Here is my code:
import SwiftUI
struct ContentView: View {
var link: some View {
NavigationLink(destination: OtherView()) {
Text("NLTitle")
}
.foregroundColor(.blue)
}
var body: some View {
NavigationView {
List {
ZStack {
HStack {
Text("1")
Spacer()
}.padding([.leading, .trailing], 20)
HStack {
Spacer()
Text("2")
.multilineTextAlignment(.center)
.frame(
alignment: .center
)
Spacer()
}
.padding([.leading, .trailing], 20)
HStack {
Spacer()
link
}.padding([.leading, .trailing], 20)
}
}
}
}
}
I have a NavigationLink (named 'link') in a list cell. I would like for the Text within 'link' to be to the rightmost side of the view. To try to accomplish this, I inserted 'link' in an HStack and put a Spacer() before it to try and push it to the rightmost part of the view. When I run the app though, the Text ends up in between Text("1") and Text("2") and I can't figure out why. I want Text("1") to be in the leftmost part of the view, Text("2") to be in the center of the view, and 'link' to be in the rightmost part of the view. I have provided visuals (the colors aren't important, I just wanted to make the different Texts clear):
Desired layout:
What I get instead:
I found that if I take everything out of the List view I get my desired layout. Also, if I keep everything in the List view and replace the NavigationLink with a Button I get my desired layout. The goal is to get the desired layout without having to change either of these aspects.
For the sake of clarity, I didn't include the code for OtherView() as I don't think it's necessary for this question.
The "quick" fix is to add fixedSize() to the NavigationLink
var link: some View {
NavigationLink(destination: Text("OtherView()")) {
Text("NLTitle")
}
.foregroundColor(.blue)
.fixedSize()
}
That will allow the link to shrink.
I got 2 views. On the second view I have list of exercises and when I choose one of them and go inside I see double back. It's driving me crazy.
First one:
import SwiftUI
struct ProgrammView: View {
var body: some View {
NavigationView{
ScrollView(.vertical, showsIndicators: false) {
VStack {
Text("blabla")
.multilineTextAlignment(.center)
.font(.custom("AvenirNext-Bold", size: 30))
NavigationLink{
InsultHandProgram()
} label: {
Image("35")
.resizable()
.scaledToFit()
.padding(.horizontal)
.padding(.bottom, 7)
.shadow(radius: 5)
}
}
}
}
}
}
Second one:
import SwiftUI
struct InsultHandProgram: View {
let numbers = InsultProgram.getInsultProgram()
var body: some View {
NavigationStack {
List(numbers) { InsultProgram in
NavigationLink( InsultProgram.name, value: InsultProgram)
}
.navigationTitle("blabla")
.navigationDestination(for: InsultProgram.self) {
InsultProgram in InsultProgrammDetail(InsultProgram: InsultProgram)
}
}
}
I tried to change navigation stack. It's crushed.
If you use NavigationView, then it provides the navigation bars for all its child views. NavigationStack in your child view also wants to provide a navigation bar, and so you end up with two.
To remedy the situation you have some choices:
Remove the NavigationStack from your child view and let NavigationView manage everything.
Remove NavigationStack from you child view and replace NavigationView in your parent with a NavigationStack. This will work fine on iPhones, but doesn't adapt well to iPads.
Keep your navigation stack in the child view but replace NavigationView with NavigationSplitView. This came in with iOS16, as did NavigationStack. The two work well together so they don't step on each other's toes when it comes to setting up navigation bars.
Given you're already using other iOS 16 idioms such as navigationDestination I'd recommend approach 3.
It seems like there's no way to modify the Picker options view's paddings. I tried different solutions from adding the padding to the enclosing NavigationView to the TextView inside the ForEach of the Picker view itself. Any clue?
Here's the view hierarchy:
NavigationView {
VStack {
Text("Debug settings")
.font(.sans(.title2))
Spacer()
.frame(height: 56)
List {
Section(header: Text("Environments").font(.sans(.body))) {
Picker("Environment", selection: $selectedEnvironment) {
ForEach(Constants.Environment.allCases) { environment in
Text(environment.rawValue.capitalized).tag(Optional<String>(environment.host))
I am writing a SwiftUI iOS app where I need a Text view to automatically scroll to the end of its content whenever the content is updated. The update happens from the model. To not complicate this question with the details of my app, I have created a simple scenario where I have two text fields and a text label. Any text entered in the text fields is concatenated and shown in the text label. The text label is enclosed in a horizontal ScrollView and can be scrolled manually if the text is longer than the screen width. What I want to achieve is for the text to scroll to the end automatically whenever the label is updated.
Here is the simple model code:
class Model: ObservableObject {
var firstString = "" {
didSet { combinedString = "\(firstString). \(secondString)." }
}
var secondString = "" {
didSet { combinedString = "\(firstString). \(secondString)." }
}
#Published var combinedString = ""
}
This is the ContentView:
struct ContentView: View {
#ObservedObject var model: Model
var body: some View {
VStack(alignment: .leading, spacing: 10) {
TextField("First string: ", text: $model.firstString)
TextField("Second string: ", text: $model.secondString)
Spacer().frame(height: 20)
Text("Combined string:")
ScrollView(.horizontal) {
Text(model.combinedString)
}
}
}
}
From the research I have done, the only way I have found to scroll to the end of the text, without having to do it manually, is to add a button to the view, which causes the text in the label to scroll to the end.
Here is the above ScrollView embedded in a ScrollViewReader, with a button to effect the scrolling action.
ScrollViewReader { scrollView in
VStack {
ScrollView(.horizontal) {
Text(model.combinedString)
.id("combinedText")
}
Button("Scroll to end") {
withAnimation {
scrollView.scrollTo("combinedText", anchor: .trailing)
}
}
.padding()
.foregroundColor(.white)
.background(Color.black)
}
}
This works, provided the intention is to use a button to effect the scrolling action.
My question is: Can the scrolling action above be triggered whenever the model is updated, without the need to click a button.
Any help or pointers will be much appreciated.
Thanks.
I assume you wanted this:
ScrollViewReader { scrollView in
VStack {
ScrollView(.horizontal) {
Text(model.combinedString)
.id("combinedText")
}
.onChange(of: model.combinedString) { // << here !!
withAnimation {
scrollView.scrollTo("combinedText", anchor: .trailing)
}
}
}
}
ScrollViewReader is the solution you're looking for. You may need to play around with the value. Also you'll need to add the .id(0) modifier to your textview.
ScrollView {
ScrollViewReader { reader in
Button("Go to first then anchor trailing.") {
value.scrollTo(0, anchor: .trailing)
}
// The rest of your code .......
I want to use NavigationView together with the ScrollView, but I am not seeing List items.
struct ContentView: View {
var body: some View {
NavigationView {
ScrollView{
VStack {
Text("Some stuff 1")
List{
Text("one").padding()
Text("two").padding()
Text("three").padding()
}
Text("Some stuff 2")
}
}
}
}
}
All I see is the text. If I remove ScrollView I see it all, but the text is being pushed to the very bottom. I simply want to be able to add List and Views in a nice scrollable page.
The ScrollView expects dimension from content, but List expects dimension from container - as you see there is conflict, so size for list is undefined, and a result rendering engine just drop it to avoid disambiguty.
The solution is to define some size to List, depending of your needs, so ScrollView would now how to lay out it, so scroll view could scroll entire content and list could scroll internal content.
Eg.
struct ContentView: View {
#Environment(\.defaultMinListRowHeight) var minRowHeight
var body: some View {
NavigationView {
ScrollView{
VStack {
Text("Some stuff 1")
List {
Text("one").padding()
Text("two").padding()
Text("three").padding()
}.frame(minHeight: minRowHeight * 3).border(Color.red)
Text("Some stuff 2")
}
}
}
}
}
Just wanted to throw out an answer that fixed what I was seeing very similar to the original problem - I had put a Label() item ahead of my List{ ... } section, and when I deleted that Label() { } I was able to see my List content again. Possibly List is buggy with other items surrounding it (Xcode 13 Beta 5).