1、升级库：keyboard_actions

lib/widget/my_app_bar.dart

@@ -9,6 +9,7 @@ class MyPageAppBar extends StatelessWidget implements PreferredSizeWidget {
   final List<Widget>? actions;
   final bool exitApp;
   final Widget? leading;
+  final double? elevation;
 
   const MyPageAppBar({
     Key? key,
@@ -20,6 +21,7 @@ class MyPageAppBar extends StatelessWidget implements PreferredSizeWidget {
     this.actions,
     this.exitApp = false,
     this.leading,
+    this.elevation,
   }) : super(key: key);
 
   @override
@@ -32,6 +34,7 @@ class MyPageAppBar extends StatelessWidget implements PreferredSizeWidget {
       primary: primary,
       actions: actions,
       leading: leading,
+      elevation: elevation,
     );
   }