[英]NavigationLink repeats in swiftUi
struct Conte111ntView: View {
@State private var selection: String? = nil
var body: some View {
NavigationView {
VStack {
NavigationLink(destination: Text("Second View : click go to ThirdView ") .navigationBarTitle("Navigation").navigationBarHidden(true).gesture(TapGesture().onEnded{ v in
self.selection = "Third"
}), tag: "Second", selection: $selection) { EmptyView() }.isDetailLink(true)
NavigationLink(destination: Text("Third View : click go to SecondView ") .navigationBarTitle("Navigation").navigationBarHidden(true).gesture(TapGesture().onEnded{ v in
self.selection = "Second"
}), tag: "Third", selection: $selection) { EmptyView() }.isDetailLink(true)
Button("Tap to show second") {
self.selection = "Second"
}
Button("Tap to show third") {
self.selection = "Third"
}
}
.navigationBarTitle("Navigation").navigationBarHidden(true)
}
}
}
struct test_Previews: PreviewProvider {
static var previews: some View {
Conte111ntView()
}
}
我想要第二個視圖 -> 第三個視圖
但 swiftUi 行為是:第二視圖 -> rootView -> 第三視圖
並在 'click go to ThirdView' 中快速點擊,'Third View' 出現錯誤行為。 return to rootView
如何解決這個問題或者我做錯了?
下面是一個更簡單的版本。
struct ContentView: View {
var body: some View {
NavigationView {
VStack {
NavigationLink(destination: SecondView()) {
Text("Second View : click go to ThirdView")
}
Spacer()
NavigationLink(destination: ThirdView()) {
Text("Third View : click go to SecondView")
}
}
}
.navigationBarHidden(false)
}
}
struct SecondView: View {
var body: some View {
Text("SecondView is here!")
}
}
struct ThirdView: View {
var body: some View {
Text("ThirdView is here!")
}
}
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