swiftui-bug

问题 I have a simple List where each row is a Toggle with its Text and Text as a subtitle all in a VStack . All works fine until I start showing or hiding some rows. Somehow the switch of the Toggle view is misaligned and is placed over its title. This happens only on the device and not when running on the simulator. It happens with both XCode 13.3 and 13.4 beta on a device running iOS 13.3.1 The complete example is import SwiftUI struct ContentView: View { @State var showDetails = false @State

问题 I rely on the SwiftUI's .onDisappear to perform some logic but it is not being called when the user dismisses a modally presented view with the swipe gesture. To reproduce Present a view modally a "ChildView 1" On this view, push a "ChildView 2" as a navigation child Swipe down to dismiss the modal view. The .onDisappear of "ChildView 2" is not called. Sample code to reproduce import SwiftUI struct ContentView: View { @State var isShowingModal var body: some View { NavigationView { Button

问题 i have a structure like that contentView { navigationView{ foreach { NavigationLink(ViewA(id: id)) } } } ///where View A contain an request trigger in view Appear struct ViewA: View { @State var filterString: String = "" var id: String! @ObservedObject var model: ListObj = ListObj() init(id: String) { self.id = id } var body: some View { VStack { SearchBarView(searchText: $filterString) List { ForEach(model.items.filter({ filterString.isEmpty || $0.id.contains(filterString) || $0.name

问题 The method of calling an alert in swiftUI is supposed to be simpler than ever, a simple example of this would be struct ContentView: View { @State private var showingAlert = false var body: some View { Button(action: { self.showingAlert = true }) { Text("Show Alert") } .alert(isPresented: $showingAlert) { Alert(title: Text("Important message"), message: Text("Wear sunscreen"), dismissButton: .default(Text("Got it!"))) } } } However, even though I am calling an alert and can verify the method

问题 I am new to SwiftUI (like most people) and trying to figure out how to remove some whitespace above a List that I embedded in a NavigationView In this image, you can see that there is some white space above the List What I want to accomplish is this I've tried using .navigationBarHidden(true) but this did not make any noticeable changes. i'm currently setting up my navigiationView like this NavigationView { FileBrowserView(jsonFromCall: URLRetrieve(URLtoFetch: applicationDelegate.apiURL))