非常简单,只需要statusBar() modifier

Text("No status bar, please")
    .statusBar(hidden: true)

注意:This modifier is available only on iOS.

通过变量控制statusBar示例

struct ContentView: View {
    @State private var hideStatusBar = false

    var body: some View {
        Button("Toggle Status Bar") {
            withAnimation {
                hideStatusBar.toggle()
            }
        }
        .statusBar(hidden: hideStatusBar)
    }
}

原文:https://www.hackingwithswift.com/quick-start/swiftui/how-to-hide-and-show-the-status-bar