first commit

untitled/lib/views/Home/Home.dart

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+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_modular/flutter_modular.dart';
+import 'package:peach/config/_.dart';
+import 'package:peach/entity/_.dart';
+import 'package:peach/utils/_.dart';
+import 'package:peach/service/_.dart';
+import 'package:peach/event/_.dart';
+import 'package:peach/views/Home/Default.dart';
+import 'package:peach/views/Home/ClassList.dart';
+import 'package:peach/views/Home/Random.dart';
+
+/*
+ * 首页
+ */
+class Home extends StatefulWidget {
+  @override
+  State<StatefulWidget> createState() => _Home();
+}
+
+class _Home extends State<Home> with AutomaticKeepAliveClientMixin<Home> {
+
+  /// 保存横向菜单的数据
+  ClassResult Tabs = ClassResult.fromJson({
+    'principal': [], 'additional': []
+  });
+
+  int _currentIndex = 0;
+
+  @override
+  bool get wantKeepAlive => true;
+
+  TabController _tabController;
+  @override
+  void initState() {
+    super.initState();
+    /// 请求权限
+    AuthorityApplication.init(context);
+    _GetClassData();
+    _EditOnListen();
+  }
+
+  void _EditOnListen () {
+    Config.eventBus.on<ClassEditEvent>().listen((event){
+      print("事件监听 ClassEditEvent ============== ：${event.update}");
+      if (event.update) {
+        print("true");
+        _currentIndex = 0;
+        Tabs = ClassResult.fromJson({ 'principal': [], 'additional': [] });
+        _GetClassData();
+      } else {
+        print("false");
+      }
+    });
+  }
+
+  void _GetClassData() async {
+    if (Tabs.principal.length == 0) {
+      Tabs = await HomeService.GetClassData(params: {});
+      // 插入首页
+      Tabs.principal.insert(0, Principal.fromJson({ 'id': 0, 'title': '随机展示','page': 0, }));
+      Tabs.principal.insert(0, Principal.fromJson({ 'id': 1, 'title': '首页','page': 0,}));
+      setState(() {});
+    }
+  }
+
+  /// 横向滑动分类菜单边上的右侧编辑按钮
+  Widget RightEdit() {
+    return Container(
+      width: Screen.setWidth(50),
+      child: IconButton(
+          iconSize: Screen.setFontSize(20.0),
+          icon: const Icon(Icons.edit, color: ColorConfig.NoActiveColor,),
+          onPressed: () {
+            Modular.to.pushNamed('/edit');
+          }
+      ),
+    );
+  }
+
+  /// 横向滑动分类菜单
+  Widget MenuList() {
+    return Expanded(
+      child: TabBar(
+        isScrollable: true,
+        unselectedLabelColor: ColorConfig.NoActiveColor,
+        indicatorColor: ColorConfig.ThemeColor,
+        tabs: Tabs.principal.map((e) => Tab(text: e.title,)).toList(),
+        onTap: (int index) {
+          print("你点击的下标为 ============== ：$index");
+        },
+      ),
+    );
+  }
+
+  /// 左侧Logo按钮
+  Widget Leading () {
+    return Builder(
+      builder: (BuildContext context) {
+        return IconButton(
+          icon: IconFont.LogoIcon(),
+          onPressed: () {
+
+          }
+        );
+      },
+    );
+  }
+
+  /// 标题的容器
+  Widget TitleWidget() {
+    return InkWell(
+      onTap: () {
+        Modular.to.pushNamed("/search");
+      },
+      child: Container(
+        height: Screen.setHeight(30.0),
+        alignment: Alignment.center,
+        width: double.infinity,
+        decoration: BoxDecoration(
+          color: ColorConfig.WhiteBackColor,
+          borderRadius: BorderRadius.all(Radius.circular(25.0)),
+        ),
+        child: Row(
+          mainAxisAlignment: MainAxisAlignment.center,
+          crossAxisAlignment: CrossAxisAlignment.center,
+          children: [
+            Icon(Icons.search, color: Color(0XFF999999), size: 14),
+            SizedBox(width: Screen.setWidth(2.0)),
+            Text("198万张图，有你想要的...", style: TextStyle(color: Color(0xFf999999), fontSize: Screen.setFontSize(13)))
+          ],
+        ),
+      ),
+    );
+  }
+
+  /// 返回不同的布局
+  List<Widget> TabView() {
+    return Tabs.principal.map((e) =>
+    e.id == 1
+        ? DefaultLayout()
+        : e.id == 0 ? Random() : ClassList(id: e.id,key: GlobalKey(),)
+    ).toList();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    super.build(context);
+    return DefaultTabController(
+      key: GlobalKey(),
+      length: Tabs.principal.length != 0 ? Tabs.principal.length : 0,
+      initialIndex: _currentIndex,
+      child: Scaffold(
+        appBar: PreferredSize(
+          preferredSize: Size.fromHeight(90.0),
+          child: AppBar(
+            primary: true,
+            titleSpacing: 0.0,
+            backgroundColor: ColorConfig.ThemeColor,
+            leading: Leading(),
+            title: TitleWidget(),
+            elevation: 0,
+            actions: [
+              IconButton(
+                iconSize: 24,
+                icon: Icon(Icons.supervisor_account),
+                onPressed: () {
+                  Config.tabController.jumpToPage(3);
+                },
+              )
+            ],
+            bottom: PreferredSize(
+              preferredSize: Size.fromHeight(40.0),
+              child: Row(
+                children: [
+                  MenuList(),
+                  RightEdit()
+                ],
+              )
+            ),
+          ),
+        ),
+        body: TabBarView(
+          children: TabView()
+        ),
+      ),
+    );
+  }
+}