使用Flutter开发的抖音国际版

简介

最近花了两天时间研究使用Flutter开发一个抖音国际版. 个人感觉使用Flutter开发app快得不要不要的额. 两天就基本可以开发个大概出来. 最主要是热重载，太方便实时调整UI布局了. 相应速度极快. 如下图：

主要项目架构

详细说明一下，开发主要在lib文件夹

pubspec.yaml是配置插件的位置，如http: ^0.12.0+4，类似依赖组件.
common文件夹存放的是重写的网络组件，以及图标组件icons.dart
config文件夹存放的api.dart，wei调用的api配置文件
models文件存放的实体层
screen文件夹存放的页面view层
tabs存放的底部切换文件夹层
widgets存放的组件，包含视频播放组件player.dart以及左右等描述组件

功能介绍

主要的依赖组件，请使用国内镜像下载，切记切记！！！！

  flutter:

    sdk: flutter

  flutter_svg: ^0.17.4

  # The following adds the Cupertino Icons font to your application.

  # Use with the CupertinoIcons class for iOS style icons.

  cupertino_icons: ^0.1.3

  cached_network_image: ^2.2.0

  json_annotation: ^3.0.1

  font_awesome_flutter: ^8.8.1

  http: ^0.12.0+4

  provider: ^4.0.4

  avatar_glow: any

  getflutter: ^1.0.11

  flutter_money_formatter: ^0.8.3

  video_player: ^0.10.8+1

  dio: ^3.0.9

  dio_cookie_manager: ^1.0.0

包含字体文件，主要为抖音自带的字体文件

import 'package:flutter/widgets.dart';

class DouyinIcons {

  DouyinIcons._();

  static const _kFontFam = 'DouyinIcons';

  static const IconData chat_bubble =

      const IconData(0xe808, fontFamily: _kFontFam);

  static const IconData create = const IconData(0xe809, fontFamily: _kFontFam);

  static const IconData heart = const IconData(0xe80a, fontFamily: _kFontFam);

  static const IconData home = const IconData(0xe80b, fontFamily: _kFontFam);

  static const IconData messages =

      const IconData(0xe80c, fontFamily: _kFontFam);

  static const IconData profile = const IconData(0xe80d, fontFamily: _kFontFam);

  static const IconData reply = const IconData(0xe80e, fontFamily: _kFontFam);

  static const IconData search = const IconData(0xe80f, fontFamily: _kFontFam);

}

此次采用Flutter开发安卓、IOS等 app确实方便，主要为将tiktok的数据使用http下载下来.

import 'package:http/http.dart' as http;

class RequestController {

  static String host = "https://www.tiktok.com/";

  String url = host +

      "/share/item/list?secUid=&id=&type=5&count=30&minCursor=0&maxCursor=0&shareUid=&lang=en&_signature=pKb.ogAgEB9ImoSQahoqJKSm.rAAPox";

  Future<String> getCookie() async {

    try {

      var response = await http.get(host + "/share/item/");

      return response.headers["set-cookie"];

    } catch (e) {

      return "error";

    }

  }

Model层

主要为实体层，解析json后绑定数据以及传递数据

class Tiktok {

  int statueCode;

  Body body;

  Object errMsg;

  Tiktok({this.statueCode, this.body, this.errMsg});

  Tiktok.fromJson(Map<String, dynamic> json) {

    statueCode = json['statusCode'];

    body = json['body'] != null ? new Body.fromJson(json['body']) : null;

    errMsg = json['errMsg'];

  }

  Map<String, dynamic> toJson() {

    final Map<String, dynamic> data = new Map<String, dynamic>();

    data['statusCode'] = this.statueCode;

    if (this.body != null) {

      data['body'] = this.body.toJson();

    }

    data['errMsg'] = this.errMsg;

    return data;

  }

}

视图层

另外屏幕层主要包含三个，homescreen，trendingscreen，以及显示videoscreen

import 'package:flutter/material.dart';

import 'package:flutter_app/Screens/trendingScreen.dart';

import 'package:flutter_app/widgets/bottom_toolbar.dart';

class Home extends StatefulWidget {

  @override

  HomeState createState() => HomeState();

}

class HomeState extends State<Home> {

  int currentIndex = 0;

  PageController pageController;

  @override

  Widget build(BuildContext context) {

    return Scaffold(

      body: PageView(

        controller: pageController,

        children: <Widget>[

          Trending(),

        ],

        onPageChanged: (int index) {

          setState(() {

            currentIndex = index;

          });

        },

      ),

      bottomNavigationBar: bottomItems(currentIndex, pageController),

    );

  }

}

Tending层，主要包含读取抖音的api，将api转化成实体对象，绑定数据到videoscreen页面

import 'dart:convert';

import 'package:flutter/material.dart';

import 'package:flutter/cupertino.dart';

import 'package:getflutter/getflutter.dart';

import 'package:flutter_app/config/api.dart';

import 'package:flutter_app/models/Tiktok.dart';

import 'package:http/http.dart' as http;

import 'package:flutter_app/Screens/videoScreen.dart';

class Trending extends StatefulWidget {

  _TrendingState createState() => _TrendingState();

}

class _TrendingState extends State<Trending> {

  PageController pageController;

  BuildContext context;

  RequestController api = RequestController();

  List<Widget> videos = [];

  getTrending() async {

    var cookies = await api.getCookie();

    api.setCookie(cookies);

    try {

      var response = await http.get(

        api.url,

        headers: api.headers,

      );

      Tiktok tiktok = Tiktok.fromJson(jsonDecode(response.body));

      tiktok.body.itemListData.forEach(

        (item) {

          setState(() {

            videos.add(VideoItem(data: item));

          });

        },

      );

    } catch (ex) {

      SimpleDialog(

        title: Text('Hot videos list is empty'),

      );

      print(ex);

    }

  }

  @override

  void initState() {

    super.initState();

    getTrending();

  }

  @override

  Widget build(BuildContext context) {

    context = context;

    return PageView(

      scrollDirection: Axis.vertical,

      controller: pageController,

      children: videos.length == 0

          ? <Widget>[

              Container(

                color: Colors.black,

                child: Center(

                  child: GFLoader(

                    type: GFLoaderType.circle,

                    loaderColorOne: Colors.blueAccent,

                    loaderColorTwo: Colors.white,

                    loaderColorThree: Colors.pink,

                  ),

                ),

              )

            ]

          : videos,

    );

  }

}

VideoScreen主要为绑定数据. 展示抖音的视频

import 'package:flutter/material.dart';

import 'package:flutter_app/models/Tiktok.dart';

import 'package:flutter_app/widgets/video_description.dart';

import 'package:flutter_app/widgets/actions_toolbar.dart';

import 'package:flutter_app/widgets/player.dart';

class VideoItem extends StatelessWidget {

  final ItemListData data;

  const VideoItem({@required this.data});

  @override

  Widget build(BuildContext context) {

    return Scaffold(

      body: Stack(

        children: <Widget>[

          DouyinVideoPlayer(

            url: data.itemInfos.video.urls[0],

          ),

          title(),

          VideoDescription(

            description: data.itemInfos.text,

            musicName: data.musicInfos.musicName,

            authorName: data.musicInfos.authorName,

            userName: data.authorInfos.uniqueId,

          ),

          ActionsToolbar(

            comments: data.itemInfos.commentCount.toString(),

            userImg: data.authorInfos.covers[0],

            favorite: data.itemInfos.diggCount,

            coverImg: data.musicInfos.covers[0],

          ),

        ],

      ),

    );

  }

  Widget title() => Align(

        alignment: Alignment.topCenter,

        child: Padding(

          padding: EdgeInsets.symmetric(vertical: 28.0),

          child: Text(

            "Trending | For You",

            style: TextStyle(color: Colors.white, fontSize: 19.0),

          ),

        ),

      );

}

此次开发主要时间用在搭建Flutter环境上，切记使用国内镜像，另外调式需要配合代理即可。

其他待完成的包含底部的导航页面，打算花两天时间把剩余的完成.

各位感兴趣的可以到我的github上点一下star. 留言可以教你们开发以及搭建dart环境. 地址:https://github.com/WangCharlie/douyin

巴特西