struct ContentView: View {
@State var manager = HtpAuth()
var body: some View {
if manager.authenticated {
Text("Login Successful!!")
}
// 2 textfields for username and password and
// a login button to call checkForAuth function
//...
}
}
class HttpAuth: ObservableObject {
var didChange = PassthroughSubject<HttpAuth, Never>()
var authenticated = false {
didSet {
didChange.send(self)
}
}
func checkForAuth(username: String, password: String) {
//REST API call
URLSession.shared.data.task(with: loginRequest) { data, response, error in
guard let data = data else { return }
let finalData = try! JSONDecoder().decode(ServerMessage.self, from: data)
DispatchQueue.main.async {
self.authenticated = true
}
}.resume()
}
}
我正在收到来自服务器的响应。但是在收到回复后,我想返回主线程以显示其他视图。我正在DispatchQueue.main.async
为此目的使用,但它不起作用。标签“登录成功!!” 成功登录后永远不会出现。