Whenever I click on button the view won't open and give me this warnings, what am I doing wrong in this code - xcode

Question

The code below gives me warning in the button part and if I run the view won't open.
If I try using NavigationLink a arrow comes at end and I don't want to use navigation in any ways.
I tried the button view putting in NavigationLink link but when I click It the whole form has the click event effect, as if ram clicking the whole form.
import SwiftUI
//login view
struct login: View {
#State private var usern:String=""
#State var navigated = false
#State private var pass:String=""
#State private var secured:Bool=true
var body: some View {
NavigationView{
//textfield and password field
Form{
VStack{
HStack{
Text("UserName:")
TextField("", text: $usern)
}
HStack{
Text("Password:")
if secured{
SecureField("",text:$pass)
}
else{
TextField("",text: $pass)
}
Button(action: {self.secured.toggle()}){
//password seen or unseen
if secured{
Image(systemName:"eye.slash")
}
else{
Image(systemName:"eye")
}
}.buttonStyle(BorderlessButtonStyle())
}
Button("Login",action: {signup()}).buttonStyle(BorderlessButtonStyle())
//button view not working
Button("Not Yet signed? Create new account",action: {signup()}).buttonStyle(BorderlessButtonStyle())
//button view not working
}
}
}
}
}
struct login_Previews: PreviewProvider {
static var previews: some View {
login()
}
}
//SIGNUP VIEW
import SwiftUI
struct signup: View {
var body: some View {
Text("Hello, World!")
}
}
struct signup_Previews: PreviewProvider {
static var previews: some View {
signup()
}
}

Answer 1

The purpose of the button is to call an action, to toggle something.
To solve your problem you have to:
Add a State variable to login View
struct login: View {
#State private var usern:String=""
#State var navigated = false
#State private var pass:String=""
#State private var secured:Bool=true
#State var showSignUp:Bool = false -- this one
}
Change the button definition FROM
Button("Not Yet signed? Create new account",action: {signup()}).buttonStyle(BorderlessButtonStyle())
TO
Button("Not Yet signed? Create new account",action: {showSignUp.toggle()}).buttonStyle(BorderlessButtonStyle())
.sheet(isPresented: $showSignUp) {
signup()
}
Please notice that, for this case I've used .sheet(isPresented) to call the view.