标签: sidebarliststyle

我想以编程方式选择/NavigationLink中的特定内容。NavigationViewList

以下代码在纵向或横向模式下的 iPhone 上都可以正常工作 == 在列表除了目标视图之外不永久可见的情况下。

代码：

struct ContentView: View {\n\nprivate let listItems = [ListItem(), ListItem(), ListItem()]\n@State var selection: Int? = 0\n\nvar body: some View {\n    NavigationView {\n        \n        List(listItems.indices) {\n            index in\n            \n            let item = listItems[index]\n            let isSelected = (selection ?? -1) == index\n            \n            NavigationLink(destination: Text("Destination \\(index)"),\n                           tag: index,\n                           selection: $selection) {\n                \n                Text("\\(item.name) \\(index) \\(isSelected ? "selected" : "")")\n                \n            }\n            \n        }\n    \n    }\n    .listStyle(SidebarListStyle())\n    .onAppear(perform: {\n …