Hey y'all, im semi new to the coding world and have just come across this error: Failed to produce diagnostic for expression; please submit a bug report (https://swift.org/contributing/#reporting-bugs) ive been building for a little while and can't figure out why. Ive rebuilt and tried everything. Any help would be appreciated!
This is the code:
import SwiftUI
import Combine
struct LoginView: View {
@EnvironmentObject var authManager: AuthenticationManager
@State private var email = ""
@State private var password = ""
@State private var showingAlert = false
@State private var alertMessage = ""
@State private var keyboardHeight: CGFloat = 0
var body: some View {
GeometryReader { geometry in
NavigationView {
ZStack {
LinearGradient(gradient: Gradient(colors: [Color.red, Color.black]), startPoint: .top, endPoint: .bottom)
.edgesIgnoringSafeArea(.all)
VStack {
Image("GottaDraftEmAll")
.resizable()
.scaledToFit()
.frame(width: geometry.size.width * 0.8, height: geometry.size.height * 0.1)
.padding(.top, 25)
Spacer()
Image("pokeball")
.resizable()
.scaledToFit()
.frame(width: geometry.size.width * 0.6, height: geometry.size.width * 0.6)
.padding(.bottom, 20)
VStack(spacing: 15) {
TextField("", text: $email)
.padding()
.background(Color.white.opacity(0.8))
.cornerRadius(10)
.padding(.horizontal, 20)
.foregroundColor(.black)
.overlay(
HStack {
Text(email.isEmpty ? "Email" : "")
.foregroundColor(Color.black.opacity(0.7))
.padding(.leading, 25)
Spacer()
}
)
SecureField("", text: $password)
.padding()
.background(Color.white.opacity(0.8))
.cornerRadius(10)
.padding(.horizontal, 20)
.foregroundColor(.black)
.overlay(
HStack {
Text(password.isEmpty ? "Password" : "")
.foregroundColor(Color.black.opacity(0.7))
.padding(.leading, 25)
Spacer()
}
)
}
.padding(.top, 50)
Button(action: {
authManager.signIn(email: email, password: password) { success, error in
if !success {
alertMessage = error ?? "An unknown error occurred"
showingAlert = true
}
}
}) {
Text("LOGIN")
.font(.headline)
.foregroundColor(.white)
.padding()
.frame(maxWidth: .infinity)
}
.buttonStyle(GlowGradientButtonStyle())
.padding(.horizontal, 20)
.padding(.top, 20)
NavigationLink(destination: SignUpView()) {
Text("Don't have an account? Sign Up")
.foregroundColor(.white)
}
.padding(.top, 10)
Spacer()
}
.padding(.bottom, keyboardHeight)
}
.onAppear {
NotificationCenter.default.addObserver(forName: UIResponder.keyboardWillShowNotification, object: nil, queue: .main) { notification in
if let value = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? CGRect {
self.keyboardHeight = value.height
}
}
NotificationCenter.default.addObserver(forName: UIResponder.keyboardWillHideNotification, object: nil, queue: .main) { _ in
self.keyboardHeight = 0
}
}
.onDisappear {
NotificationCenter.default.removeObserver(self, name: UIResponder.keyboardWillShowNotification, object: nil)
NotificationCenter.default.removeObserver(self, name: UIResponder.keyboardWillHideNotification, object: nil)
}
.alert(isPresented: $showingAlert) {
Alert(title: Text("Login Error"), message: Text(alertMessage), dismissButton: .default(Text("OK")))
}
}
}
}
}
Topic:
UI Frameworks
SubTopic:
SwiftUI