搭建页面框架，完成首页-发现。

.gitignore

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+.DS_Store
+.dart_tool/
+
+.packages
+.pub/
+
+.idea/
+.vagrant/
+.sconsign.dblite
+.svn/
+
+*.swp
+profile
+
+DerivedData/
+
+.generated/
+
+*.pbxuser
+*.mode1v3
+*.mode2v3
+*.perspectivev3
+
+!default.pbxuser
+!default.mode1v3
+!default.mode2v3
+!default.perspectivev3
+
+xcuserdata
+
+*.moved-aside
+
+*.pyc
+*sync/
+Icon?
+.tags*
+
+build/
+.android/
+.ios/
+.flutter-plugins

.metadata

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+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: cccf44faa64af2b9e0e9436f36960852b50532c4
+  channel: master
+
+project_type: module

README.md

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+# flutter_eyepetizer
+
+A new Flutter module.
+
+## Getting Started
+
+For help getting started with Flutter, view our online
+[documentation](https://flutter.io/).

flutter_eyepetizer.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/lib" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/test" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/.dart_tool" />
+      <excludeFolder url="file://$MODULE_DIR$/.idea" />
+      <excludeFolder url="file://$MODULE_DIR$/.pub" />
+      <excludeFolder url="file://$MODULE_DIR$/build" />
+    </content>
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Dart SDK" level="project" />
+    <orderEntry type="library" name="Flutter Plugins" level="project" />
+    <orderEntry type="library" name="Dart Packages" level="project" />
+  </component>
+</module>

flutter_eyepetizer_android.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="android" name="Android">
+      <configuration>
+        <option name="ALLOW_USER_CONFIGURATION" value="false" />
+        <option name="GEN_FOLDER_RELATIVE_PATH_APT" value="/.android/gen" />
+        <option name="GEN_FOLDER_RELATIVE_PATH_AIDL" value="/.android/gen" />
+        <option name="MANIFEST_FILE_RELATIVE_PATH" value="/.android/AndroidManifest.xml" />
+        <option name="RES_FOLDER_RELATIVE_PATH" value="/.android/res" />
+        <option name="ASSETS_FOLDER_RELATIVE_PATH" value="/.android/assets" />
+        <option name="LIBS_FOLDER_RELATIVE_PATH" value="/.android/libs" />
+        <option name="PROGUARD_LOGS_FOLDER_RELATIVE_PATH" value="/.android/proguard_logs" />
+      </configuration>
+    </facet>
+  </component>
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$/.android">
+      <sourceFolder url="file://$MODULE_DIR$/.android/Flutter/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/.android/gen" isTestSource="false" generated="true" />
+    </content>
+    <orderEntry type="jdk" jdkName="Android API 25 Platform" jdkType="Android SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Flutter for Android" level="project" />
+  </component>
+</module>

lib/app.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter_eyepetizer/feed/feed_page.dart';
+import 'package:flutter_eyepetizer/home/home_page.dart';
+import 'package:flutter_eyepetizer/notice/notice_page.dart';
+import 'package:flutter_eyepetizer/personal/personal_page.dart';
+import 'package:flutter_eyepetizer/publish/publish_page.dart';
+
+/// 应用程序主页面
+class App extends StatefulWidget {
+  @override
+  State<StatefulWidget> createState() => _MyAppState();
+}
+
+class _MyAppState extends State<App> {
+  /// tab选中的文本颜色
+  Color _colorTabSelect = Colors.black;
+
+  /// tab未选中的文本颜色
+  Color _colorTabNormal = Colors.black38;
+
+  int _currentIndex = 0;
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: Colors.white,
+      //底部导航tab
+      bottomNavigationBar: BottomNavigationBar(
+          backgroundColor: Colors.white,
+          type: BottomNavigationBarType.fixed,
+          //设置tab选中和未选中的属性
+          selectedItemColor: _colorTabSelect,
+          unselectedItemColor: _colorTabNormal,
+          selectedFontSize: 14,
+          unselectedFontSize: 14,
+          //tab点击事件
+          onTap: (index) => {
+                setState(() {
+                  _currentIndex = index;
+                })
+              },
+          items: [
+            BottomNavigationBarItem(
+                title: Text("首页"),
+                icon: _currentIndex == 0
+                    ? Image.asset("images/ic_tab_strip_icon_feed_selected.png")
+                    : Image.asset("images/ic_tab_strip_icon_feed.png")),
+            BottomNavigationBarItem(
+                title: Text("社区"),
+                icon: _currentIndex == 1
+                    ? Image.asset(
+                        "images/ic_tab_strip_icon_follow_selected.png")
+                    : Image.asset("images/ic_tab_strip_icon_follow.png")),
+            BottomNavigationBarItem(
+                title: Text(
+                  "",
+                  style: TextStyle(fontSize: 0),
+                ),
+                icon: Image.asset("images/ic_home_public.png")),
+            BottomNavigationBarItem(
+                title: Text("通知"),
+                icon: _currentIndex == 3
+                    ? Image.asset(
+                        "images/ic_tab_strip_icon_category_selected.png")
+                    : Image.asset("images/ic_tab_strip_icon_category.png")),
+            BottomNavigationBarItem(
+                title: Text("我的"),
+                icon: _currentIndex == 4
+                    ? Image.asset(
+                        "images/ic_tab_strip_icon_profile_selected.png")
+                    : Image.asset("images/ic_tab_strip_icon_profile.png"))
+          ]),
+      //页面展示的内容
+      body: _currentPage(),
+    );
+  }
+
+  /// 根据选中的tab显示对应的内容
+  Widget _currentPage() {
+    Widget page;
+    switch (_currentIndex) {
+      case 0:
+        page = HomePage();
+        break;
+      case 1:
+        page = FeedPage();
+        break;
+      case 2:
+        page = PublishPage();
+        break;
+      case 3:
+        page = NoticePage();
+        break;
+      case 4:
+        page = PersonalPage();
+        break;
+    }
+    return page;
+  }
+}

lib/feed/feed_attention.dart

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+import 'package:flutter/material.dart';
+
+///社区-关注
+class FeedAttentionPage extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      alignment: Alignment.center,
+      child: Text("关注"),
+    );
+  }
+}

lib/feed/feed_page.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter_eyepetizer/feed/feed_attention.dart';
+import 'package:flutter_eyepetizer/feed/feed_recommend.dart';
+import 'package:flutter_eyepetizer/search/search_page.dart';
+
+/// 社区页面
+class FeedPage extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return DefaultTabController(
+      //tab数量
+      length: 2,
+      child: Scaffold(
+        backgroundColor: Colors.white,
+        appBar: AppBar(
+          backgroundColor: Colors.white,
+          elevation: 0,
+          title: Stack(
+            children: <Widget>[
+              Align(
+                child: Container(
+                  width: MediaQuery.of(context).size.width / 2.5,
+                  child: TabBar(
+                      //设置tab选中和未选中的属性
+                      indicatorSize: TabBarIndicatorSize.label,
+                      indicatorWeight: 2,
+                      labelColor: Colors.black,
+                      labelStyle: TextStyle(
+                          fontSize: 14.2, fontWeight: FontWeight.bold),
+                      unselectedLabelColor: Colors.black54,
+                      unselectedLabelStyle: TextStyle(
+                          fontSize: 14.0, fontWeight: FontWeight.bold),
+                      indicatorColor: Colors.black,
+                      indicatorPadding: new EdgeInsets.only(bottom: -8.0),
+                      //tab点击事件
+                      onTap: (index) => {},
+                      tabs: [Text("发现"), Text("关注")]),
+                ),
+                alignment: FractionalOffset.center,
+              ),
+              Align(
+                child: IconButton(
+                    icon: Icon(Icons.search, color: Colors.black),
+                    onPressed: () => {
+                          Navigator.of(context).push(MaterialPageRoute(
+                              builder: (BuildContext context) {
+                            return SearchPage();
+                          }))
+                        }),
+                alignment: FractionalOffset.centerRight,
+              )
+            ],
+          ),
+        ),
+        body: TabBarView(children: [FeedRecommendPage(), FeedAttentionPage()]),
+      ),
+    );
+  }
+}

lib/feed/feed_recommend.dart

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+import 'package:flutter/material.dart';
+
+/// 社区-推荐
+class FeedRecommendPage extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      alignment: Alignment.center,
+      child: Text("推荐"),
+    );
+  }
+}

lib/home/home_attention.dart

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+import 'package:flutter/material.dart';
+
+/// 首页-关注
+class HomeAttentionPage extends StatelessWidget{
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      alignment: Alignment.center,
+      child: Text("关注"),
+    );
+  }
+
+}