swiftui

问题 I am using GMSMapView with SwiftUI, in map-view I have to display some markers with lat and long. Upon clicking any marker I have to Move to another view. I am doing this by putting MapView in NavigationLink . This thing is working fine By using code. NavigationView { NavigationLink(destination: Text(""), isActive: $abc) { MapView().edgesIgnoringSafeArea(.all) } } And the issue is NavigationLink , after putting mapview in NavigationLink every-time when i interact with map, white overlay

问题 I installed the Mapbox SDK into my project, but I don't understand how to integrate this code snippet with SwiftUI . I created a SwiftUI View named MapView , where I import the Mapbox Framework. I try to use the UIViewRepresentable protocol, as in Apple's tutorial, but without success. import Mapbox class MapView: UIViewController { override func viewDidLoad() { super.viewDidLoad() let styleURL = URL(string: "mapbox://styles/mapbox/outdoors-v9") let mapView = MGLMapView(frame: view.bounds,

问题 I have an ObservableObject that has a member property with the @GestureState wrapper. In my View, how do I get access to the GestureState property? I've already tried using dot notation with the $ binding to try to expose the GestureState but it doesn't like that My AppState ObservableObject : class AppState: ObservableObject { let objectWillChange = ObservableObjectPublisher() @GestureState var currentState: LongPressState = .inactive public enum LongPressState: String { case inactive =

问题 I have a list of buttons that display perfectly on iOS 13 using SwiftUI, but on iOS 14 it cuts the content off where the screen ends. Has anything changed with regards to how HStacks renders what isn't on the screen? I used to scroll and be able to see all the buttons. I will attach some screenshots and the code. var body: some View { VStack(alignment: .leading, spacing: 0){ Text("Select a venue type") .font(.custom("MavenProBold", size: 16)) .padding(.leading, 16) .padding(.top, 18)

问题 I have a list of buttons that display perfectly on iOS 13 using SwiftUI, but on iOS 14 it cuts the content off where the screen ends. Has anything changed with regards to how HStacks renders what isn't on the screen? I used to scroll and be able to see all the buttons. I will attach some screenshots and the code. var body: some View { VStack(alignment: .leading, spacing: 0){ Text("Select a venue type") .font(.custom("MavenProBold", size: 16)) .padding(.leading, 16) .padding(.top, 18)

问题 I need a "Plus" ⊕ Button in my NavigationView 's List .navigationBarItems (right on the navigation bar), which I'd like to add a row to the list, using a subsequent view in the navigation hierarchy to enter its name etc. But first, I can't even get the button to navigate correctly! When I tap it in the Preview Canvas, the button's operation seems to work. Yet in an actual app, while it does navigate to my destination View, when I tap that View's "< Back" button, the app crashes with:

问题 I need a "Plus" ⊕ Button in my NavigationView 's List .navigationBarItems (right on the navigation bar), which I'd like to add a row to the list, using a subsequent view in the navigation hierarchy to enter its name etc. But first, I can't even get the button to navigate correctly! When I tap it in the Preview Canvas, the button's operation seems to work. Yet in an actual app, while it does navigate to my destination View, when I tap that View's "< Back" button, the app crashes with:

问题 I am creating a custom list displaying time information (minutes and seconds, not used in the snippet below to simplify the code). I managed to implement a nice animation when the user adds an entry to the list, but deleting an entry has no animation (1st GIF). With iOS 14, the animation is working, however, the animation only removes the last rectangle from the list and then updates the text in each row (2nd GIF). That's not what I want - My goal is if a row has been deleted, the other rows

问题 In SwiftUI how can I avoid having row content being indenting in my List when I move into Edit Mode, but not using onDelete? That is currently my row content is indented as this happens, as if the "delete" button will be shown on the left, however I'm not using onDelete so there is no button there. Animated GIF Code extract here: var body: some View { VStack{ List() { ForEach(gcTasks) { gcTask in HStack { GCTaskRow(withGcTask: gcTask, haha: "") } } // .onDelete(perform: self.deleteTask) //

问题 In SwiftUI how can I avoid having row content being indenting in my List when I move into Edit Mode, but not using onDelete? That is currently my row content is indented as this happens, as if the "delete" button will be shown on the left, however I'm not using onDelete so there is no button there. Animated GIF Code extract here: var body: some View { VStack{ List() { ForEach(gcTasks) { gcTask in HStack { GCTaskRow(withGcTask: gcTask, haha: "") } } // .onDelete(perform: self.deleteTask) //