原文链接:https://github.com/fzhlee/SwiftUI-Guide#-%E7%AC%AC16%E8%8A%82form-showhide-
本节课演示如何切换部分表单的可见性,从而实现根据用户的选择,给用户提供不同的表单项目。
示例代码:
struct ContentView : View {
@State var showingVisible = false //用来标识是否隐藏表单
@State var userName = ""
@State var password = ""
var body: some View {
NavigationView {
Form {
Toggle(isOn: $showingVisible.animation()) { //使用该视图显示或隐藏表单
if(showingVisible){
Text("Hide Form")
}
else{
Text("Show Form")
}
}
if(showingVisible)
{
Section(header: Text("Please enter your information:")) {
TextField("Username", text: $userName)
SecureField("Password", text: $password)
}
}
}.navigationBarTitle(Text("Profiles"))
}
}
}
网友评论