在用户将输入保存到SWIFT中的核心数据后，如何创建指向我的应用程序S主页的链接

在父视图中使用NavigationStack和dismisstry 此方法 子视图save中的按钮转换回.

示例代码:

struct ContentView: View {
    var body: some View {
        NavigationStack {  // <--- here
            NavigationLink(destination: AddInventoryView()) {
                Text("Add to Inventory")
            }
        }
    }
}

struct AddInventoryView: View {
    @Environment(\.managedObjectContext) var managedObjectContext
    @Environment(\.dismiss) var dismiss  // <--- here
    
    @State var name = ""
    @State var cost = ""
    @State var volume = ""
    
    var body: some View {
        Form {
            TextField("name", text: $name)
            TextField("cost", text: $cost)
            TextField("volume", text: $volume)
        }
        .navigationTitle("Add Inventory")
        // if/else to only display once TextField's have values
        if(!name.isEmpty && !cost.isEmpty && !volume.isEmpty ) {
            Button("Save") {
                self.saveInventory(name: name, cost: cost, volume: volume)
                dismiss() // <--- here
            }
        }
    }
    
    func saveInventory(name: String, cost: String, volume: String) {
        // Save input to core data func
    }
}

编辑-1:

您也可以使用另一种使用NavigationPath的方法. 请参阅:https://developer.apple.com/documentation/swiftui/navigationstack/#Manage-navigation-state

例如:

struct ContentView: View {
    @State var path = NavigationPath()  // <--- here
    
    var body: some View {
        NavigationStack(path: $path){  // <--- here
            NavigationLink(value: "add") {
                Text("Add to Inventory")
            }
            .navigationDestination(for: String.self) { _ in
                AddInventoryView(path: $path)  // <--- here
            }
        }
    }
}

struct AddInventoryView: View {
    @Environment(\.managedObjectContext) var managedObjectContext
    @Binding var path: NavigationPath  // <--- here
    
    @State var name = ""
    @State var cost = ""
    @State var volume = ""
    
    var body: some View {
        Form {
            TextField("name", text: $name)
            TextField("cost", text: $cost)
            TextField("volume", text: $volume)
        }
        .navigationTitle("Add Inventory")
        // if/else to only display once TextField's have values
        if(!name.isEmpty && !cost.isEmpty && !volume.isEmpty ) {
            Button("Save") {
                self.saveInventory(name: name, cost: cost, volume: volume)
                path = NavigationPath() // <--- here, go to wherever you want
            }
        }
    }
    
    func saveInventory(name: String, cost: String, volume: String) {
        // Save input to core data func
    }
}

使用Save按钮对我来说已经是老式的了.我会打包 name、cost和volume组成一个实体并使用它. 请看这个链接，它为你提供了一些如何管理应用程序中的数据的很好的例子: Managing model data in your app.