Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
582 views
in Technique[技术] by (71.8m points)

swift - Conditionally use view in SwiftUI

I'm trying to figure out the correct way to conditionally include a view with swiftui. I wasn't able to use the if directly inside of a view and had to use a stack view to do it.

This works but there seems like there would be a cleaner way.

var body: some View {
    HStack() {
        if keychain.get("api-key") != nil {
            TabView()
        } else {
            LoginView()
        }
    }
}
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

The simplest way to avoid using an extra container like HStack is to annotate your body property as @ViewBuilder, like this:

@ViewBuilder
var body: some View {
    if user.isLoggedIn {
        MainView()
    } else {
        LoginView()
    }
}

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...