自定义形状，

demo/Views/Layouts/NavigationPageView.swift

@@ -7,14 +7,14 @@
 
 import SwiftUI
 
-struct NavigationPageView: View {
-    @Environment(\.dismiss) private var dismiss
+struct NavigationPageView<T: View>: View {
+    @Environment(\.presentationMode) private var presentationMode
     var title: String = ""
-    var content: any View
+    var content: T?
 
     var body: some View {
         ScrollView {
-            AnyView(content)
+            content
         }
         .navigationBarTitleDisplayMode(.inline)
         .navigationTitle(title)
@@ -22,7 +22,7 @@ struct NavigationPageView: View {
         .toolbar {
             ToolbarItem(placement: .navigationBarLeading) {
                 Button {
-                    dismiss()
+                    presentationMode.wrappedValue.dismiss()
                 } label: {
                     HStack {
                         Image(systemName: "chevron.backward")