增加若干基础页面

lib/pages/tab/index.dart

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+library tab;
+
+export './tab_logic.dart';
+export './tab_state.dart';
+export './tab_view.dart';
+export './tab_binding.dart';

lib/pages/tab/tab_binding.dart

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+import 'package:flutter_jdt_store/pages/layout/home/index.dart';
+import 'package:flutter_jdt_store/pages/layout/user/index.dart';
+import 'package:get/get.dart';
+
+import 'tab_logic.dart';
+
+class TabBinding extends Bindings {
+  @override
+  void dependencies() {
+    Get.lazyPut(() => TabLogic());
+    Get.lazyPut(() => HomeLogic());
+    Get.lazyPut(() => UserLogic());
+  }
+}

lib/pages/tab/tab_logic.dart

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+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+import '../../global.dart';
+import 'tab_state.dart';
+
+class TabLogic extends GetxController {
+  final TabState state = TabState();
+
+  @override
+  void onInit() {
+    super.onInit();
+    state.pageController = PageController(initialPage: state.currentPage);
+  }
+
+  @override
+  void onReady() {
+    // TODO: implement onReady
+    super.onReady();
+  }
+
+  @override
+  void onClose() {
+    // TODO: implement onClose
+    super.onClose();
+  }
+
+  @override
+  void dispose() {
+    state.pageController!.dispose();
+    super.dispose();
+  }
+
+  handlePageChanged(int page) {
+    state.currentPage = page;
+    update();
+  }
+
+  handleNavBarTap(int index) {
+    if (index == state.currentPage) return;
+    if (Global.isOfflineLogin && index != 0) {
+      Get.toNamed('/tab');
+      return;
+    }
+    state.pageController!.jumpToPage(index);
+  }
+}

lib/pages/tab/tab_state.dart

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+import 'package:flutter/cupertino.dart';
+
+class TabState {
+  late int currentPage;
+  PageController? pageController;
+  TabState() {
+    ///Initialize variables
+    currentPage = 0;
+  }
+}

lib/pages/tab/tab_view.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:get/get.dart';
+import 'package:tdesign_flutter/tdesign_flutter.dart';
+import '../../utils/utils.dart';
+import '../layout/home/index.dart';
+import '../layout/user/index.dart';
+import 'tab_logic.dart';
+
+class TabPage extends StatelessWidget {
+  const TabPage({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    final logic = Get.find<TabLogic>();
+    final state = Get.find<TabLogic>().state;
+
+    /// 内容页
+    Widget buildPageView() {
+      return GetBuilder<TabLogic>(builder: (_) {
+        return PageView(
+          physics: const NeverScrollableScrollPhysics(),
+          controller: state.pageController,
+          onPageChanged: logic.handlePageChanged,
+          children: const <Widget>[
+            HomePage(),
+            UserPage(),
+          ],
+        );
+      });
+    }
+
+    List<BottomNavigationBarItem> createBottomItems() {
+      return <BottomNavigationBarItem>[
+        const BottomNavigationBarItem(
+          icon: Icon(
+            TDIcons.dashboard,
+            color: Colors.grey,
+          ),
+          activeIcon: Icon(
+            TDIcons.dashboard,
+            color: Color.fromRGBO(0, 82, 217, 1),
+          ),
+          label: "工作台",
+        ),
+        const BottomNavigationBarItem(
+          icon: Icon(
+            TDIcons.desktop,
+            color: Colors.grey,
+          ),
+          activeIcon: Icon(
+            TDIcons.desktop,
+            color: Color.fromRGBO(0, 82, 217, 1),
+          ),
+          label: "商家中心",
+        ),
+      ];
+    }
+
+    /// 底部导航
+    Widget buildBottomNavigationBar() {
+      List<BottomNavigationBarItem> bottomItems = createBottomItems();
+      return GetBuilder<TabLogic>(builder: (_) {
+        return BottomNavigationBar(
+          items: bottomItems,
+          currentIndex: state.currentPage,
+          backgroundColor: Colors.white,
+          unselectedItemColor: Colors.grey,
+          selectedItemColor: const Color.fromRGBO(0, 82, 217, 1),
+          type: BottomNavigationBarType.fixed,
+          onTap: logic.handleNavBarTap,
+          selectedFontSize: 10.sp,
+          unselectedFontSize: 10.sp,
+          iconSize: 32.w,
+        );
+      });
+    }
+
+    return PopScope(
+        canPop: false,
+        onPopInvoked: (_) {
+          ToolFn().isExit();
+        },
+        child: Scaffold(
+          body: buildPageView(),
+          bottomNavigationBar: buildBottomNavigationBar(),
+        ));
+  }
+}