页面结构初始化

lib/pages/main/index.dart

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+library main;
+
+export './controller.dart';
+export './view.dart';

lib/pages/main/view.dart

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+import 'package:flutter/material.dart';
+
+class MainApp extends StatefulWidget {
+  const MainApp({super.key});
+
+  @override
+  State<MainApp> createState() => _MainAppState();
+}
+
+class _MainAppState extends State<MainApp> {
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('main'),
+      ),
+    );
+  }
+}