Swift UI Update a view by doing something in another view - view

Question

In my code, I have a value which counts calls from Navigation Links. This works fine but I want that if this count is over 1, the ContentView updates and add a cell. At the moment, I have to restart the app and then I have the new cell, but I want, that it updates directly. Is this possible? This is my code:
struct Website : Identifiable, Hashable, Comparable{
static func < (lhs: Website, rhs: Website) -> Bool {
lhs.name < rhs.name
}
var id = UUID()
var url : String
var name : String
var image : String
var calls : Int
}
struct websiteCallsCell : View{
var website : Website
#State var press = false
#State var tap = false
#State var isPresented = false
var body: some View{
NavigationLink(destination: WebView(website: website, url: URL(string: website.url)), label: {
Text(website.name)
.font(.system(size: 20, weight: .semibold, design: .rounded))
.frame(width: UIScreen.main.bounds.width*0.85, height: 60)
.background(
ZStack {
Color(press ? colorLiteral(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0) : colorLiteral(red: 0.7608050108, green: 0.8164883852, blue: 0.9259157777, alpha: 1))
RoundedRectangle(cornerRadius: 16, style: .continuous)
.foregroundColor(Color(press ? colorLiteral(red: 0.7608050108, green: 0.8164883852, blue: 0.9259157777, alpha: 1) : colorLiteral(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0)))
.blur(radius: 4)
.offset(x: -8, y: -8)
RoundedRectangle(cornerRadius: 16, style: .continuous)
.fill(
LinearGradient(gradient: Gradient(colors: [Color( colorLiteral(red: 0.9019607843, green: 0.9294117647, blue: 0.9882352941, alpha: 1)), Color.white]), startPoint: .topLeading, endPoint: .bottomTrailing)
)
.padding(2)
.blur(radius: 2)
}
)
.clipShape(RoundedRectangle(cornerRadius: 16, style: .continuous))
.overlay(
HStack {
AnimatedImage(url: URL(string: website.image))
.font(.system(size: 24, weight: .light))
.foregroundColor(Color.white.opacity(press ? 0 : 1))
.frame(width: press ? 220 : 54, height: press ? 4 : 50)
.background(Color( colorLiteral(red: 0.3647058904, green: 0.06666667014, blue: 0.9686274529, alpha: 1)))
.clipShape(RoundedRectangle(cornerRadius: 16, style: .continuous))
.shadow(color: Color( colorLiteral(red: 0.3647058904, green: 0.06666667014, blue: 0.9686274529, alpha: 1)).opacity(0.3), radius: 10, x: 10, y: 10)
.offset(x: press ? 70 : -10, y: press ? 16 : 0)
Spacer()
}
)
.shadow(color: Color(press ? colorLiteral(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0) : colorLiteral(red: 0.7608050108, green: 0.8164883852, blue: 0.9259157777, alpha: 1)), radius: 20, x: 20, y: 20)
.shadow(color: Color(press ? colorLiteral(red: 0.7608050108, green: 0.8164883852, blue: 0.9259157777, alpha: 1) : colorLiteral(red: 1, green: 1, blue: 1, alpha: 1)), radius: 20, x: -20, y: -20)
.scaleEffect(tap ? 1.2 : 1)
})
}
}
List{
ForEach(websites){ website in
if UserDefaults.standard.integer(forKey: "calls\(website.name)") > 0 && (UserDefaults.standard.integer(forKey: "lastCallsCount") < 8) {
VStack{
websiteCallsCell(website: website)
lineSpacing(20)
Spacer(minLength: 5)
}
}
}
}

Answer 1

You are checking on UserDefaults , Which is not a publisher
I have two solutions fir that :
1- use #Environmentobject with a #Published var for clicks count , then check on it , in your ContentView
2- pass the State variable to the navigation link , and in the navigation link destination declare #Binding variable , and change it in each press , then check on it in your ContentView
struct websiteCallsCell : View {
var website : Website
#Binding var pressCount : Int
// other code
}
//
struct ContentView : View {
#State var pressCount = 0
}
//
List{
ForEach(websites){ website in
if pressCount > 0 && pressCount< 8 {
VStack{
websiteCallsCell(website: website, pressCount: self.$pressCount)
lineSpacing(20)
Spacer(minLength: 5)
}
}
}
}