How to have a Navigation link open a different view? - swiftui

Question

I keep trying to have the navigation links in the surveys list in contentView to open detailView when selected. I keep getting errors Missing argument for parameter 'newsurvey' in call Insert 'newsurvey: <#Survey#>'
Here's the home view
struct ContentView: View {
#State var surveys: [Survey] = []
#State var isPresented = false
#State var selectedTab: Int = 0
#State private var path = [String]()
let dateFormatter: DateFormatter = {
let formatter = DateFormatter()
formatter.dateFormat = "MM/dd/yyyy"
return formatter
}()
var body: some View {
ZStack {
VStack{
NavigationView {
VStack {
Text("")
.frame(height: 0)
.navigationBarTitleDisplayMode(.inline)
//reduces navbartitle height
.toolbar {
ToolbarItem(placement: .principal) {
Image("RR_Logo_Primary_Full_Color")
.resizable()
.frame(width: 275.0, height: 55.0)
}
}
List(surveys) { survey in
NavigationLink(destination: DetailView(newsurvey: survey)) //must be within navigationview
{
HStack{
ZStack {
Rectangle()
.frame(width: 400, height: 100.0)
.foregroundColor(.white)
.cornerRadius(4)
HStack (alignment: .top) {
VStack (alignment: .leading) {
Text(survey.customerName)
.offset(x: -60, y: -2)
.font(.custom("Roboto-Light", size: 24))
Text(survey.lineName)
.offset(x: -60, y: -5)
.font(.custom("Roboto-Light", size: 18))
Text("# of conveyors")
.offset(x: -60)
}
VStack {
Text(dateFormatter.string(from: survey.date))
.font(.custom("Roboto-Light", size: 18))
.offset(x: 60)
}
}
}
}
}
}
.listRowInsets(EdgeInsets())
}
}
.environment(\.defaultMinListHeaderHeight, 1)
CustomTabBar(surveys: $surveys, isPresented: $isPresented)
.frame(height: 60, alignment: .bottom)
}
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
I tried the following code below but I keep getting not in scope error.
#State var newsurvey: Survey
#State var surveys: [Survey] = []
#State private var conveyorName = ""
#State private var masterTag = ""
#State private var showAddConveyorSheet = false
#State private var conveyors: [Conveyor] = []
var body: some View {
NavigationView {
VStack {
List {
ForEach(conveyors, id: \.name) { conveyor in
NavigationLink(destination: ConveyorTrack(conveyor: conveyor)) {
Text(conveyor.name)
}
}
}
Button(action: {
self.showAddConveyorSheet = true
}) {
Text("Add Conveyor")
}
}
.navigationBarTitle("Conveyors", displayMode: .inline)
.sheet(isPresented: $showAddConveyorSheet) {
VStack {
HStack {
TextField("Conveyor Name", text: $conveyorName)
TextField("Master Tag", text: $masterTag)
.onTapGesture {
// open camera and scan text here
}
}
Button(action: {
self.conveyors.append(Conveyor(id: self.conveyorName, name: self.conveyorName, masterTag: self.masterTag))
self.conveyorName = ""
self.masterTag = ""
self.showAddConveyorSheet = false
}) {
Text("Save")
}
}
}
}
}
}
struct DetailView_Previews: PreviewProvider {
static var previews: some View {
DetailView(newsurvey: survey)
}
}