SwiftUI 中的异步下一屏幕演示 [英] Async Next Screen Presentation in SwiftUI
问题描述
我想在用户点击我的应用中的注册按钮时注册用户.当注册完成并在服务器端成功创建用户时,我想显示下一个屏幕,然后仅.
i want to signup users when they click the signup button in my app. When the signup is complete and successfully created a user on the server side I want to present the next screen and only then.
在正常情况下,我有一个 PresentationButton 并设置目的地,当有人单击按钮时,下一个屏幕会直接显示,但现在它是异步的.
In normal way I have a PresentationButton and set the destination and when somebody clicked the button the next screen is presented directly, but now it's async.
如何处理?
目前我有这个 PresentationButton:
Currently I have this PresentationButton:
PresentationButton(
Text(isSignIn ? "SignIn" : "Next").font(.headline).bold()
.frame(width: 100)
.padding(10)
.foregroundColor(.white)
.background(Color.blue)
.cornerRadius(20)
, destination: HomeScreen()
)
这是 Uro Arangino 的建议:
That's with the suggestion by Uro Arangino:
struct PasswordView : View {
@State private var password = ""
@State private var showNextScreen = false
var loginMode: LoginType
@ObjectBinding var signupManager = SignUpManager()
var body: some View {
VStack {
// if self.signupManager.showModal { self.showNextScreen.toggle() } <- Can't do this
TwitterNavigationView(backBtnOn: false)
middleView()
Spacer()
bottomView()
}
}
func bottomView() -> some View {
return VStack(alignment: .trailing) {
Divider()
BindedPresentationButton(
showModal: $showNextScreen,
label: getCustomText((Text("Registrieren"))),
destination: HomeTabView(),
onTrigger: {
let user = User(name: "rezo", username: "ja lol ey", profileDescription: "YAS", email: "dbjdb@dedde.de", telephoneNumber: nil, profileImage: UIImage(named: "twitter-logo")!, bannerImage: UIImage(systemName: "star")!)
self.signupManager.signIn(forUser: user, password: "ultraSecure", loginMode: .email)
// UserDefaults.standard.set(true, forKey: "loggedIn")
})
}.padding([.leading, .trailing]).padding(.top, 5).padding(.bottom, 10)
}
}
我的可绑定对象类
final class SignUpManager: BindableObject {
let didChange = PassthroughSubject<SignUpManager, Never>()
var showModal: Bool = false {
didSet {
didChange.send(self)
}
}
func signIn(forUser user: User, password: String, loginMode: LoginType) {
if loginMode == .email {
LoginService.instance.signupWithEmail(user: user, andPassword: password, completion: handleCompletion)
} else {
LoginService.instance.login(withPhoneNumber: user.telephoneNumber!, completion: handleCompletion)
}
}
private func handleCompletion(_ status: Bool) {
if status {
showModal = true
}
}
}
推荐答案
您可以使用带有绑定的演示按钮.
You can use a presentation button with a binding.
参见:https://stackoverflow.com/a/56547016/3716612
struct ContentView: View {
@State var showModal = false
var body: some View {
BindedPresentationButton(
showModal: $isSignIn,
label: Text(isSignIn ? "SignIn" : "Next")
.font(.headline)
.bold()
.frame(width: 100)
.padding(10)
.foregroundColor(.white)
.background(Color.blue)
.cornerRadius(20),
destination: HomeScreen()
)
}
}
这篇关于SwiftUI 中的异步下一屏幕演示的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!