swiftui

I'm building an app using SwiftUI that is centered around a list of articles which are either a new standalone topic, or which have a hierarchical relationship with an ancestor which was originally one of those new standalone topics.The default view in the List{} structure shows just the titles of the articles, but when tapping on an entry which shows the threaded titles, they're all expanded, via the following logic:if showDetail { ForEach(self.articles, id: .self) { article in VStack { if article.id != self.articles[0].id { Text(article.title) .font(.caption) .lineLimit(3) } Text(article.summary) .lineLimit(20) } } } else { ForEach(self.articles, id: .self) { article in if article.id != self.articles[0].id { Text(• (article.title)) } } }And it works great! Except for one thing: when expanded, the encompassing view gets enough padding at the top and the bottom for several lines of text.. If I drop the article summary's .lineLimit to 1, the padding goes away, but at 3 and above the extra padding is v

I've succesfully created a number of UIViewControllerRepresentable using various UIViewController, with one exception: CNContactPickerViewController. Everything I've tried has given me a blank white screen. Is this UIViewController special in some way that makes it currently incompatible?import SwiftUI import ContactsUI // Minimal version struct LookupContactViewController : UIViewControllerRepresentable { func makeUIViewController(context: Context) -> CNContactPickerViewController { let contactPickerVC = CNContactPickerViewController() contactPickerVC.delegate = context.coordinator return contactPickerVC } func makeCoordinator() -> Coordinator { return Coordinator() } func updateUIViewController(_ uiViewController: CNContactPickerViewController, context: Context) { } class Coordinator: NSObject { } } extension LookupContactViewController.Coordinator : CNContactPickerDelegate { func contactPickerDidCancel(_ picker: CNContactPickerViewController) { print(Cancelled!) } func contactPicker(_ picker

Hi,I am working with SwiftUI, and am new to Xcode, and Swift at all.I did the SwiftUI essentials Tutorial, and done the Controls and Views part.Now I am stuck on my own creation app.I try to get data from an local .json file which I stored in the Resources folder.In the preview View, I pass in the data of index 0, but while rendering the preview it always crashes, and cannot build a preview.I almost copied all the files from the BuildingListsAndNavigations project.This is my View where I try to post from the json fileimport SwiftUI struct UserRow : View { var user: User var body: some View { Text(user.name) } } #if DEBUG struct UserRow_Previews : PreviewProvider { static var previews: some View { UserRow(user: userData[0]) } } #endifhere is the data.swift fileimport UIKit import SwiftUI import CoreLocation let userData: [User] = load(users.json) func load<T: Decodable>(_ filename: String, as type: T.Type = T.self) -> T { let data: Data guard let file = Bundle.main.

In Section 4, step 1, we're instructed to add a button on the left to show Done while edit mode is active. However the EditButton control already changes its text between Edit and Done based on the mode. What that control lacks is a way to perform an action when the mode changes. I can follow the tutorial and add the extra button on the left, but that's not right for production code. What should be done in that situation?https://developer.apple.com/tutorials/swiftui/working-with-ui-controlsHStack { if self.mode?.value == .active { Button(action: { self.profile = self.draftProfile // This action line needs to execute when (either) Done is tapped self.mode?.animation().value = .inactive }) { Text(Done) } } Spacer() EditButton() // This already will toggle between Edit and Done labels }