SwiftUI navigation works on iOS but fails on macOS

Question

I have an iOS SwiftUI app that works fine on iPhone and iPad, but when compiled for native macOS the navigation links are disabled. Code is below. Briefly, the FirstView is a NavigationView containing a List of NavigationLinks. These work, and link to a DetailView that contains a next level of NavigationLinks presented as Images.

On iOS, these images are active blue that when clicked, go to a FinalView.

On macOS, these images are inactive: Presented as gray, and don't have any click-ability.

Why do these appear differently on the two OS's? How to fix the macOS version so that it navigates? Thanks in advance

import SwiftUI

struct TNode {  // simple data struct that just carries name and ID
    public let id = UUID()
    public let name : String
    init( _ name:String) {
        self.name = name
    }
}

// starting view
struct FirstView: View {
    init () {
        // provide some sample data
        nodes = [TNode("node 1"), TNode("node 2")]
     }

    @State private var nodes : [TNode]

    var body: some View {
        NavigationView {
            List {
                ForEach(nodes, id:\.id) { (node) in
                    // where to go when selected
                    NavigationLink(destination:
                                    DetailView(displayNode: node)
                    ){ // display names for selection in the sidebar
                        VStack {
                            Text(node.name)
                        }
                    }
                }
            }
        }
    }
}

struct DetailView: View {
    let displayNode : TNode
    
    var body: some View {
        VStack(alignment: .leading) {
            
            Text(displayNode.name)
            
            HStack{
                // this is what doesn't work on macOS
                NavigationLink(destination: FinalView()) {
                    Image(systemName:"figure.stand.line.dotted.figure.stand")
                }
                 
                NavigationLink(destination: FinalView()) {
                        Image(systemName:"square.and.pencil")
                }
            }
        }
    }
}

struct FinalView : View {
    var body : some View {
        Text("Got to final view OK")
    }
}

Behavior on macOS:

Xcode 13.4.1, macOS Monterey 12.4

SwiftyJoeyy · Accepted Answer · 2022-06-21 10:09:54Z

2

Embed the VStack of the DetailView in a NavigationView. Remember that iOS is different than macOS.

In iOS you didn't need to wrap the child View of in a NavigationView because it's a child. With macOS this a standalone View.

answered Jun 21, 2022 at 10:09

SwiftyJoeyy

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2 Comments

Bob Jacobsen Over a year ago

Thank you! That fixed my simplified case. When I do that on the original, the buttons work once; after invoking one, you have to back out to the top level and return before clicking a different button will work. Probably another aspect of macOS differences. Can you point me to a good reference on those? Thanks again.

SwiftyJoeyy Over a year ago

Give this augmentedcode.io/2021/09/13/sidebar-layout-on-macos-in-swiftui a try. Also not that with the new SwiftUI 4 Navigation changed dramatically, I suggest you watch the videos from WWDC 22 developer.apple.com/videos/play/wwdc2022/10054

Ptit Xav · Accepted Answer · 2022-06-21 12:04:54Z

0

Remove Stack in Navigation link :

                ){ // display names for selection in the sidebar
// Remove VStack     VStack {
                        Text(node.name)
//                   }
                }

answered Jun 21, 2022 at 12:04

Ptit Xav

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