Having an issue with the above error encountered when attempting to trigger a Navigation Link Programatically. Upon clicking the link, the wrong destination array element will load sporadically (vs the label clicked on), and of course the above error shows.
When I trigger the Navigation Link non programmatically the error does not occur, but I have another method that I need to run when the user clicks this link.
I have read through several questions, like here and here, but cannot find the cause in my case.
Model Struct:
struct Place: Identifiable {
var id: UUID = UUID()
var name: String = ""
var testBool: Bool = false
}
Class for environment object: (Production project has many properties and methods - essentially this is the ViewModel)
class UserPlaces: ObservableObject {
@Published var placesArray: [Place] = [Place]([Place(name: "Christian", testBool: false),Place(name: "Catherine", testBool: true)])
}
Class for navigation boolean: (Production project has many properties here that I want to keep in one class)
class Navigation: ObservableObject {
@Published var showPlaceDetail: Bool = false
}
ContentView: (Parent view where NavigationView is located)
import SwiftUI
struct ContentView: View {
var body: some View {
NavigationView {
ScrollView {
Text("Hello, world!")
.padding()
CardsGrid2()
} // End ScrollView
} // End Navigation View
} // End body
} // End Struct
CardsGrid: (In this view the NavigationLink is not programmatically triggered and the console error does not show.)
import SwiftUI
struct CardsGrid: View { @EnvironmentObject var userPlaces: UserPlaces
var gridLayout: [GridItem] = [GridItem(.flexible(minimum: 40), spacing: -36),GridItem(.flexible(minimum: 40), spacing: -36)]
var body: some View {
LazyVGrid(columns: gridLayout, spacing: 10) {
ForEach(userPlaces.placesArray) { placeCard in
NavigationLink(
destination: Text("Destination")
, label: { Text("Label") }
)
} // End ForEach
} // End LazyVGrid
} // End body
} // End struct
CardsGridProgrammatic: (In this view the NavigationLink is programmatically triggered and the console error shows.)
import SwiftUI
struct CardsGridProgrammatic: View {
@EnvironmentObject var userPlaces: UserPlaces
@EnvironmentObject var navigation: Navigation
var gridLayout: [GridItem] = [GridItem(.flexible(minimum: 40), spacing: -36),GridItem(.flexible(minimum: 40), spacing: -36)]
var body: some View {
LazyVGrid(columns: gridLayout, spacing: 10) {
ForEach(userPlaces.placesArray) { placeCard in
NavigationLink(destination: Text("Destination"), isActive: $navigation.showPlaceDetail) { EmptyView() }
.isDetailLink(false)
Button(action: {
navigation.showPlaceDetail = true
// Other required method call here
}, label: { Text("label") })
} // End ForEach
} // End LazyVGrid
} // End body
} // End struct
Additionally:
- I tried wrapping the ForEach in a Form and a List - doesn't work.
- Moving the ScrollView did work - BUT I need the scrollview in the content view because I have other views that I want to scroll as well.
- I thought it may have something to do with the LazyGrid - perhaps it doesn't play nice with NavLink, but couldn't find anything there either.
How can I fix this?
