final

lib/pages/minipos_learn_more.dart

@@ -16,7 +16,7 @@ import '../widgets/mobile/MobileBottomNav.dart';
 import '../widgets/mobile/mobile_minipos_learn_more.dart';
 
 class MiniPosLearnMore extends StatefulWidget {
-  const MiniPosLearnMore({Key key}) : super(key: key);
+  const MiniPosLearnMore({Key? key}) : super(key: key);
 
   @override
   State<StatefulWidget> createState() {
@@ -26,7 +26,7 @@ class MiniPosLearnMore extends StatefulWidget {
 
 class MiniPosLearnMoreState extends State<MiniPosLearnMore> {
   final _scaffoldKey = GlobalKey<ScaffoldState>();
-  Map<String, dynamic> data;
+  Map<String, dynamic>? data;
 
   @override
   Widget build(BuildContext context) {
@@ -42,35 +42,36 @@ class MiniPosLearnMoreState extends State<MiniPosLearnMore> {
       );
     }
 
-    return WillPopScope(
-      child: ResponsiveBuilder(
-        builder: (context, sizingInformation) =>
-          Scaffold(
-            key: _scaffoldKey,
-            appBar: MiniNavigationBar(
-              title: S.of(context).minipos,
-              back: true,
-              breadCrumbs: [
-                BreadCrumb(S.of(context).minipos, null),
-              ],
-              breadCrumbHeight: sizingInformation.deviceScreenType == DeviceScreenType.mobile ? null : Constants.BREADCRUMB_HEIGHT,
-            ),
-            drawer: null,
-            body: ScreenTypeLayout(
-              mobile: MobileMiniPosLearnMore(data),
-              tablet: DesktopMiniPosLearnMore(data),
-              desktop: DesktopMiniPosLearnMore(data),
-            ),
-            bottomNavigationBar: ScreenTypeLayout(
-              mobile: MobileBottomNav(currentIndex: 0,),
-              tablet: BottomNav(),
-              desktop: BottomNav(),
-            ),
+    return ResponsiveBuilder(
+      builder: (context, sizingInformation) => PopScope(
+        canPop: true,
+        onPopInvokedWithResult: (didPop, result) {
+          if (didPop) return;
+          // 可以在这里处理返回逻辑
+        },
+        child: Scaffold(
+          key: _scaffoldKey,
+          appBar: MiniNavigationBar(
+            title: S.of(context).minipos,
+            back: true,
+            breadCrumbs: [
+              BreadCrumb(S.of(context).minipos, null),
+            ],
+            breadCrumbHeight: sizingInformation.deviceScreenType == DeviceScreenType.mobile ? null : Constants.BREADCRUMB_HEIGHT,
           ),
+          drawer: null,
+          body: ScreenTypeLayout.builder(
+            mobile: (context) => MobileMiniPosLearnMore(data!),
+            tablet: (context) => DesktopMiniPosLearnMore(data!),
+            desktop: (context) => DesktopMiniPosLearnMore(data!),
+          ),
+          bottomNavigationBar: ScreenTypeLayout.builder(
+            mobile: (context) => MobileBottomNav(currentIndex: 0),
+            tablet: (context) => BottomNav(),
+            desktop: (context) => BottomNav(),
+          ),
+        ),
       ),
-      onWillPop: () async {
-        return true;
-      },
     );
   }