第二篇-用Flutter手撸一个抖音国内版，看看有多炫

前言

继上一篇使用Flutter开发的抖音国际版 后再次撸一个国内版抖音，大部分功能已完成，主要是Flutter开发APP速度很爽,  先看下图

 

项目主要结构介绍

 

 这次主要的改动在api.dart 及douyin.dart里，国内抖音的api是不同的，另外地址以及实体类也不一样。详细下面介绍.

抖音的实体类

主要是讲json转化为实体模型，然后绑定到view 层面，写这个实体类还是很耗费时间的，毕竟得先用爬网知识讲抖音的json拿到，并且根据json反向写实体类.

这个地址获取到抖音的推荐列表json： https://creator.douyin.com/aweme/v1/creator/data/billboard/?billboard_type=4，绑定第一个Douyin实体，拿到所有抖音的url地址

 

通过第二个api地址 https://www.iesdouyin.com/web/api/v2/aweme/iteminfo/?item_ids= 拿到抖音视频所有的json信息并且绑定VideoData实体类

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class Douyin {   int statusCode;   String statusMsg;   List<BillboardData> billboardData;   Extra extra;     Douyin({this.statusCode, this.statusMsg, this.billboardData, this.extra});     Douyin.fromJson(Map<String, dynamic> json) {     statusCode = json["status_code"];     statusMsg = json["status_msg"];     if (json['billboard_data'] != null) {       billboardData = new List<BillboardData>();       json["billboard_data"].forEach((v) {         billboardData.add(BillboardData.fromJson(v));       });     }     extra = json['extra'] != null ? new Extra.fromJson(json['extra']) : null;   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["status_code"] = this.statusCode;     data["status_msg"] = this.statusMsg;     if (this.billboardData != null) {       data["billboard_data"] =           this.billboardData.map((v) => v.toJson()).toList();     }     data["extra"] = this.extra;     return data;   } }   class BillboardData {   String author;   String imgUrl;   String link;   int rank;   String title;   String value;     BillboardData(       {this.author, this.imgUrl, this.link, this.rank, this.title, this.value});     BillboardData.fromJson(Map<String, dynamic> json) {     this.author = json["author"];     this.imgUrl = json["img_url"];     this.link = json["link"];     this.rank = json["rank"];     this.title = json["title"];     this.value = json["value"];   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["author"] = this.author;     data["img_url"] = this.imgUrl;     data["link"] = this.link;     data["rank"] = this.rank;     data["title"] = this.title;     data["value"] = this.value;     return data;   } }   class Extra {   int now;   Extra({this.now});     Extra.fromJson(Map<String, dynamic> json) {     now = json["now"];   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["now"] = this.now;     return data;   } }   class VideoData {   int statusCode;   List<Itemlist> itemList;   ExtraData extra;     VideoData.fromJson(Map<String, dynamic> json) {     this.statusCode = json["status_code"];     if (json['item_list'] != null) {       itemList = new List<Itemlist>();       json['item_list'].forEach((v) {         itemList.add(new Itemlist.fromJson(v));       });     }     this.extra =         json["extra"] != null ? new ExtraData.fromJson(json["extra"]) : null;   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["status_code"] = this.statusCode;     if (this.itemList != null) {       data['item_list'] = this.itemList.map((v) => v.toJson()).toList();     }     if (this.extra != null) {       data["extra"] = this.extra.toJson();     }     return data;   } }   class Itemlist {   String awemeid;   String videolabels;   String labeltoptext;   int category;   Author author;   int duration;   String promotions;   int ispreview;   int createtime;   List<ChaList> chalist;   String commentlist;   int authoruserid;   String videotext;   int groupid;   bool islivereplay;   ShareInfo shareinfo;   String position;   String imageinfos;   RiskInfos riskinfos;   String uniqidposition;   String geofencing;   Statistics statistics;   int awemetype;   Music music;   List<TextExtra> textExtras;   Video video;   String shareurl;   String desc;   String longvideo;     Itemlist(       {this.awemeid,       this.videolabels,       this.labeltoptext,       this.category,       this.author,       this.duration,       this.promotions,       this.ispreview,       this.createtime,       this.chalist,       this.commentlist,       this.authoruserid,       this.videotext,       this.groupid,       this.islivereplay,       this.shareinfo,       this.position,       this.imageinfos,       this.riskinfos,       this.uniqidposition,       this.geofencing,       this.statistics,       this.awemetype,       this.music,       this.textExtras,       this.video,       this.shareurl,       this.desc,       this.longvideo});     Itemlist.fromJson(Map<String, dynamic> json) {     this.awemeid = json["aweme_id"];     this.videolabels = json["video_labels"];     this.labeltoptext = json["label_top_text"];     this.category = json["category"];     this.author =         json["author"] != null ? new Author.fromJson(json["author"]) : null;     this.duration = json["duration"];     this.promotions = json["promotions"];     this.ispreview = json["is_preview"];     this.createtime = json["create_time"];     if (json["cha_list"] != null) {       this.chalist = new List<ChaList>();       json["cha_list"].forEach((v) {         this.chalist.add(new ChaList.fromJson(v));       });     }     this.commentlist = json["comment_list"];     this.authoruserid = json["author_user_id"];     this.videotext = json["video_text"];     this.groupid = json["group_id"];     this.islivereplay = json["is_live_replay"];     this.shareinfo = json["share_info"] != null         ? new ShareInfo.fromJson(json["share_info"])         : null;     this.position = json["position"];     this.imageinfos = json["image_infos"];     this.riskinfos = json["risk_infos"] != null         ? new RiskInfos.fromJson(json["risk_infos"])         : null;     this.uniqidposition = json["uniqid_position"];     this.geofencing = json["geofencing"];     this.statistics = json["statistics"] != null         ? new Statistics.fromJson(json["statistics"])         : null;     this.awemetype = json["aweme_type"];     this.music =         json["music"] != null ? new Music.fromJson(json["music"]) : null;     if (json["text_extra"] != null) {       this.textExtras = new List<TextExtra>();       json['text_extra'].forEach((v) {         textExtras.add(new TextExtra.formJson(v));       });     }     this.video =         json["video"] != null ? new Video.fromJson(json["video"]) : null;     this.shareurl = json["share_url"];     this.desc = json["desc"];     this.longvideo = json["long_video"];   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["aweme_id"] = this.awemeid;     data["video_labels"] = this.videolabels;     data["label_top_text"] = this.labeltoptext;     data["category"] = this.category;     if (this.author != null) {       data["author"] = this.author.toJson();     }     data["duration"] = this.duration;     data["promotions"] = this.promotions;     data["is_preview"] = this.ispreview;     data["create_time"] = this.createtime;     if (this.chalist != null) {       data["cha_list"] = this.chalist.map((e) => e.toJson()).toList();     }     data["comment_list"] = this.commentlist;     data["author_user_id"] = this.authoruserid;     data["video_text"] = this.videotext;     data["group_id"] = this.groupid;     data["is_live_replay"] = this.islivereplay;     if (this.shareinfo != null) {       data["share_info"] = this.shareinfo.toJson();     }     data["position"] = this.position;     data["image_infos"] = this.imageinfos;     if (this.riskinfos != null) {       data["risk_infos"] = this.riskinfos.toJson();     }     data["uniqid_position"] = this.uniqidposition;     data["geofencing"] = this.geofencing;     if (this.statistics != null) {       data["statistics"] = this.statistics.toJson();     }     data["aweme_type"] = this.awemetype;     if (this.music != null) {       data["music"] = this.music.toJson();     }     if (this.textExtras != null) {       data["text_extra"] = this.textExtras.map((e) => e.toJson()).toList();     }     if (this.video != null) {       data["video"] = this.video.toJson();     }     data["share_url"] = this.shareurl;     data["desc"] = this.desc;     data["long_video"] = this.longvideo;     return data;   } }   class TextExtra {   String hashtagName;   int hashtagId;   int start;   int end;   int type;     TextExtra(       {this.hashtagName, this.hashtagId, this.start, this.end, this.type});     TextExtra.formJson(Map<String, dynamic> json) {     this.hashtagName = json["hashtag_name"];     this.hashtagId = json["hashtag_id"];     this.start = json["start"];     this.end = json["end"];     this.type = json["type"];   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["hashtag_name"] = this.hashtagName;     data["hashtag_id"] = this.hashtagId;     data["start"] = this.start;     data["end"] = this.end;     data["type"] = this.type;     return data;   } }   // Author class Author {   String geofencing;   String uid;   String shortID;   String signature;   AvatarMedium avatarMedium;   String uniqueId;   String followersDetail;   String platformSyncInfo;   String policyVersion;   String nickname;   AvatarLarger avatarlarger;   AvatarThumb avatarthumb;     Author(       {this.geofencing,       this.uid,       this.shortID,       this.signature,       this.avatarMedium,       this.uniqueId,       this.followersDetail,       this.platformSyncInfo,       this.policyVersion,       this.nickname,       this.avatarlarger,       this.avatarthumb});     Author.fromJson(Map<String, dynamic> json) {     this.geofencing = json["geofencing"];     this.uid = json["uid"];     this.shortID = json["short_id"];     this.signature = json["signature"];     this.avatarMedium = json["avatar_medium"] != null         ? new AvatarMedium.fromJson(json["avatar_medium"])         : null;     this.uniqueId = json["unique_id"];     this.followersDetail = json["followers_detail"];     this.platformSyncInfo = json["platform_sync_info"];     this.policyVersion = json["policy_version"];     this.nickname = json["nickname"];     this.avatarlarger = json["avatar_larger"] != null         ? new AvatarLarger.formJson(json["avatar_larger"])         : null;     this.avatarthumb = json["avatar_thumb"] != null         ? new AvatarThumb.formJson(json["avatar_thumb"])         : null;   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["geofencing"] = this.geofencing;     data["uid"] = this.uid;     data["short_id"] = this.shortID;     data["signature"] = this.signature;     if (this.avatarMedium != null) {       data["avatar_medium"] = this.avatarMedium.toJson();     }     data["unique_id"] = this.uniqueId;     data["followers_detail"] = this.followersDetail;     data["platform_sync_info"] = this.platformSyncInfo;     data["policy_version"] = this.policyVersion;     data["nickname"] = this.nickname;     if (this.avatarlarger != null) {       data["avatar_larger"] = this.avatarlarger.toJson();     }     if (this.avatarthumb != null) {       data["avatar_thumb"] = this.avatarthumb.toJson();     }     return data;   } }   class AvatarMedium {   List<String> urlList;   String uri;   AvatarMedium({this.urlList, this.uri});     AvatarMedium.fromJson(Map<String, dynamic> json) {     if (json["url_list"] != null) {       this.urlList = json["url_list"].cast<String>();     }     this.uri = json["uri"];   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["url_list"] = this.urlList;     return data;   } }   class AvatarLarger {   String uri;   List<String> urlList;   AvatarLarger({this.uri, this.urlList});     AvatarLarger.formJson(Map<String, dynamic> json) {     this.uri = json["uri"] as String;     this.urlList = json["url_list"].cast<String>();   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["url_list"] = this.urlList;     data["uri"] = this.uri;     return data;   } }   class AvatarThumb {   String uri;   List<String> urlList;   AvatarThumb({this.uri, this.urlList});     AvatarThumb.formJson(Map<String, dynamic> json) {     this.uri = json["uri"] as String;     this.urlList = json["url_list"].cast<String>();   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["url_list"] = this.urlList;     data["uri"] = this.uri;     return data;   } }   class ExtraData {   int now;   String logid;   ExtraData({this.now, this.logid});     ExtraData.fromJson(Map<String, dynamic> json) {     this.now = json["now"];     this.logid = json["logid"];   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["now"] = this.now;     data["logid"] = this.logid;     return data;   } } //End author   //ChaList class ChaList {   String chaName;   int viewCount;   String hashTagProfile;   bool isCommerce;   String cid;   String desc;   int userCount;   String connectMusic;   int type;   CoverItem coverItem;   ChaList(       {this.chaName,       this.viewCount,       this.hashTagProfile,       this.isCommerce,       this.cid,       this.desc,       this.userCount,       this.connectMusic,       this.type,       this.coverItem});     ChaList.fromJson(Map<String, dynamic> json) {     this.chaName = json["cha_name"];     this.viewCount = json["view_count"];     this.hashTagProfile = json["hash_tag_profile"];     this.isCommerce = json["is_commerce"];     this.cid = json["cid"];     this.desc = json["desc"];     this.userCount = json["user_count"];     this.connectMusic = json["connect_music"];     this.type = json["type"];     this.coverItem = json["cover_item"] != null         ? new CoverItem.formJson(json["cover_item"])         : null;   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["cha_name"] = this.chaName;     data["view_count"] = this.viewCount;     data["hash_tag_profile"] = this.hashTagProfile;     data["is_commerce"] = this.isCommerce;     data["cid"] = this.cid;     data["desc"] = this.desc;     data["user_count"] = this.userCount;     data["connect_music"] = this.connectMusic;     data["type"] = this.type;     if (this.coverItem != null) {       data["cover_item"] = this.coverItem.toJson();     }     return data;   } }   class CoverItem {   String uri;   List<String> urlList;   CoverItem({this.uri, this.urlList});   CoverItem.formJson(Map<String, dynamic> json) {     this.uri = json["uri"] as String;     this.urlList = json["url_list"].cast<String>();   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["url_list"] = this.urlList;     data["uri"] = this.uri;     return data;   } } //End ChaList   //ShareInfo class ShareInfo {   String shareweibodesc;   String sharedesc;   String sharetitle;   ShareInfo({this.shareweibodesc, this.sharedesc, this.sharetitle});   ShareInfo.fromJson(Map<String, dynamic> json) {     this.shareweibodesc = json["share_weibo_desc"];     this.sharedesc = json["share_desc"];     this.sharetitle = json["share_title"];   }   Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["share_weibo_desc"] = this.shareweibodesc;     data["share_desc"] = this.sharedesc;     data["share_title"] = this.sharetitle;     return data;   } } //End ShareInfo   //RiskInfos class RiskInfos {   bool warn;   int type;   String content;   RiskInfos({this.warn, this.type, this.content});   RiskInfos.fromJson(Map<String, dynamic> json) {     this.warn = json["warn"] as bool;     this.type = json["type"];     this.content = json["content"];   }   Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["warn"] = this.warn;     data["type"] = this.type;     data["content"] = this.content;     return data;   } } //End RiskInfos   //Statistics class Statistics {   String awemeId;   int commentCount;   int diggCount;   Statistics.fromJson(Map<String, dynamic> json) {     this.awemeId = json["aweme_id"];     this.commentCount = json["comment_count"];     this.diggCount = json["digg_count"];   }   Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["aweme_id"] = this.awemeId;     data["comment_count"] = this.commentCount;     data["digg_count"] = this.diggCount;     return data;   } } //End Statistics   //Music class Music {   CoverLarge coverlarge;   CoverMedium covermedium;   int duration;   int status;   String mid;   String title;   String author;   PlayUrl playurl;   String position;   int id;   CoverHd coverhd;   CoverThumb coverthumb;     Music.fromJson(Map<String, dynamic> json) {     this.coverlarge = json["cover_large"] != null         ? new CoverLarge.formJson(json["cover_large"])         : null;     this.covermedium = json["cover_medium"] != null         ? new CoverMedium.formJson(json["cover_medium"])         : null;     this.duration = json["duration"];     this.status = json["status"];     this.mid = json["mid"];     this.title = json["title"];     this.author = json["author"];     this.playurl = json["play_url"] != null         ? new PlayUrl.formJson(json["play_url"])         : null;     this.position = json["position"];     this.id = json["id"];     this.coverhd = json["cover_hd"] != null         ? new CoverHd.formJson(json["cover_hd"])         : null;     this.coverthumb = json["cover_thumb"] != null         ? new CoverThumb.formJson(json["cover_thumb"])         : null;   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     if (this.coverlarge != null) {       data["cover_large"] = this.coverlarge.toJson();     }     if (this.covermedium != null) {       data["cover_medium"] = this.covermedium.toJson();     }     data["duration"] = this.duration;     data["status"] = this.status;     data["mid"] = this.mid;     data["title"] = this.title;     data["author"] = this.author;     if (this.playurl != null) {       data["play_url"] = this.playurl.toJson();     }     data["position"] = this.position;     data["id"] = this.id;     if (this.coverhd != null) {       data["cover_hd"] = this.coverhd.toJson();     }     if (this.coverthumb != null) {       data["cover_thumb"] = this.coverthumb.toJson();     }     return data;   } }   class CoverLarge {   String uri;   List<String> urlList;   CoverLarge({this.uri, this.urlList});   CoverLarge.formJson(Map<String, dynamic> json) {     this.uri = json["uri"] as String;     this.urlList = json["url_list"].cast<String>();   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["url_list"] = this.urlList;     data["uri"] = this.uri;     return data;   } }   class CoverMedium {   String uri;   List<String> urlList;   CoverMedium({this.uri, this.urlList});   CoverMedium.formJson(Map<String, dynamic> json) {     this.uri = json["uri"] as String;     this.urlList = json["url_list"].cast<String>();   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["url_list"] = this.urlList;     data["uri"] = this.uri;     return data;   } }   class PlayUrl {   String uri;   List<String> urlList;   PlayUrl({this.uri, this.urlList});   PlayUrl.formJson(Map<String, dynamic> json) {     this.uri = json["uri"] as String;     this.urlList = json["url_list"].cast<String>();   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["url_list"] = this.urlList;     data["uri"] = this.uri;     return data;   } }   class CoverHd {   String uri;   List<String> urlList;   CoverHd({this.uri, this.urlList});   CoverHd.formJson(Map<String, dynamic> json) {     this.uri = json["uri"] as String;     this.urlList = json["url_list"].cast<String>();   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["url_list"] = this.urlList;     data["uri"] = this.uri;     return data;   } }   class CoverThumb {   String uri;   List<String> urlList;   CoverThumb({this.uri, this.urlList});   CoverThumb.formJson(Map<String, dynamic> json) {     this.uri = json["uri"] as String;     this.urlList = json["url_list"].cast<String>();   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["url_list"] = this.urlList;     data["uri"] = this.uri;     return data;   } } //End Music   //Video class Video {   int width;   OriginCover origincover;   String ratio;   bool haswatermark;   String bitrate;   PlayAddr playaddr;   Cover cover;   int duration;   String vid;   int islongvideo;   int height;   DynamicCover dynamiccover;   Video(       {this.width,       this.origincover,       this.ratio,       this.haswatermark,       this.bitrate,       this.playaddr,       this.cover,       this.duration,       this.vid,       this.islongvideo,       this.height,       this.dynamiccover});   Video.fromJson(Map<String, dynamic> json) {     this.width = json["width"];     this.origincover = json["origin_cover"] != null         ? new OriginCover.formJson(json["origin_cover"])         : null;     this.ratio = json["ratio"];     this.haswatermark = json["has_watermark"];     this.bitrate = json["bit_rate"];     this.playaddr = json["play_addr"] != null         ? new PlayAddr.formJson(json["play_addr"])         : null;     this.cover =         json["cover"] != null ? new Cover.formJson(json["cover"]) : null;     this.duration = json["duration"];     this.vid = json["vid"];     this.islongvideo = json["is_long_video"];     this.height = json["height"];     this.dynamiccover = json["dynamic_cover"] != null         ? new DynamicCover.formJson(json["dynamic_cover"])         : null;   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["width"] = this.width;     if (this.origincover != null) {       data["origin_cover"] = this.origincover.toJson();     }     data["ratio"] = this.ratio;     data["has_watermark"] = this.haswatermark;     data["bit_rate"] = this.bitrate;     if (this.playaddr != null) {       data["play_addr"] = this.playaddr.toJson();     }     if (this.cover != null) {       data["cover"] = this.cover.toJson();     }     data["duration"] = this.duration;     data["vid"] = this.vid;     data["is_long_video"] = this.islongvideo;     data["height"] = this.height;     if (this.dynamiccover != null) {       data["dynamic_cover"] = this.dynamiccover.toJson();     }     return data;   } }   class OriginCover {   String uri;   List<String> urlList;   OriginCover({this.uri, this.urlList});   OriginCover.formJson(Map<String, dynamic> json) {     this.uri = json["uri"] as String;     this.urlList = json["url_list"].cast<String>();   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["url_list"] = this.urlList;     data["uri"] = this.uri;     return data;   } }   class PlayAddr {   String uri;   List<String> urlList;   PlayAddr({this.uri, this.urlList});   PlayAddr.formJson(Map<String, dynamic> json) {     this.uri = json["uri"] as String;     this.urlList = json["url_list"].cast<String>();   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["url_list"] = this.urlList;     data["uri"] = this.uri;     return data;   } }   class Cover {   String uri;   List<String> urlList;   Cover({this.uri, this.urlList});   Cover.formJson(Map<String, dynamic> json) {     this.uri = json["uri"] as String;     this.urlList = json["url_list"].cast<String>();   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["url_list"] = this.urlList;     data["uri"] = this.uri;     return data;   } }   class DynamicCover {   String uri;   List<String> urlList;   DynamicCover({this.uri, this.urlList});   DynamicCover.formJson(Map<String, dynamic> json) {     this.uri = json["uri"] as String;     this.urlList = json["url_list"].cast<String>();   }     Map<String, dynamic> toJson() {     final Map<String, dynamic> data = new Map<String, dynamic>();     data["url_list"] = this.urlList;     data["uri"] = this.uri;     return data;   } }   //End Video

　　

取抖音无水印视频，这里才是关键

通过这个api地址 https://aweme.snssdk.com/aweme/v1/play/?video_id={}&ratio=720p&line=0&media_type=4&vr_type=0&improve_bitrate=0&is_play_url=1&h265=1&adapt720=1 可以成功的拿到无水印视频,

此方法仅用于学习研究目的，不得从事违法活动哈,  否则与本作者无关.

具体实现代码如下

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import 'dart:io';   import 'package:flutter/cupertino.dart'; import 'package:http/http.dart' as http; import 'package:dio/dio.dart';   class RequestController {   //static String host = "https://www.tiktok.com/";   static String host = "https://creator.douyin.com";   String url = host + "/aweme/v1/creator/data/billboard/?billboard_type=4";     String video =       "https://www.iesdouyin.com/web/api/v2/aweme/iteminfo/?item_ids=";     String player = "https://aweme.snssdk.com/aweme/v1/play/?video_id=";     Future<String> getVideos() async {     try {       var response = await http.get(url);       return response.body;     } catch (e) {       return e.toString();     }   }     //获取无水印的视频   Future<String> getRedirects(String videoid) async {     try {       var response = await new Dio().get(         player +             videoid +             "&ratio=720p&line=0&media_type=4&vr_type=0&improve_bitrate=0&is_play_url=1&h265=1&adapt720=1",         options: Options(             headers: headers,             contentType: "text/html; charset=utf-8",             followRedirects: false,             validateStatus: (status) {               return status < 500;             }),       );       if (response.statusCode == 302) {         return response.data.toString().split('"')[1];       }       return '';     } catch (ex) {       return '';     }   }     Future<String> getCookie() async {     try {       var response = await http.get(host + "/share/item/");       return response.headers["set-cookie"];     } catch (e) {       return "error";     }   }     var headers = {     "user-agent":         "Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Mobile/15A372 Safari/604.1"   }; }

　

剩下就是改造TrendingScreen里获取视频的方法 

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getTrending() async {   //var cookies = await api.getCookie();   //api.setCookie(cookies);   try {     var response = await http.get(       api.url,       headers: api.headers,     );     Douyin tiktok = Douyin.fromJson(jsonDecode(response.body));     tiktok.billboardData.forEach(       (item) {         setState(() {           getVideos(item);         });       },     );   } catch (ex) {     SimpleDialog(       title: Text('Hot videos list is empty'),     );     print(ex);   } }

　　

把获取到的无水印视频加载到view层

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getVideos(BillboardData v) async {     try {       var url = v.link.split("/")[5];       var response = await http.get(         api.video + url + "&dytk",         headers: api.headers,       );       VideoData videoData = VideoData.fromJson(jsonDecode(response.body));       //获取无水印的视频地址       api.getRedirects(videoData.itemList[0].video.playaddr.uri).then((url) => {             print( Uri.decodeFull(url)),             if (url != '')               {                 videos.add(VideoItem(                   data: videoData,                   videourl: url,                 ))               }           });     } catch (ex) {       print(ex);     }   }

　

最后，就是绑定视频数据啦，大功告成！

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Widget build(BuildContext context) {   return Scaffold(     body: Stack(       children: <Widget>[         DouyinVideoPlayer(           url: videourl,         ),         title(),         VideoDescription(           description: data.itemList[0].textExtras[0].hashtagName,           musicName: data.itemList[0].music.title,           authorName: data.itemList[0].music.author,           userName: data.itemList[0].author.nickname,         ),         ActionsToolbar(           comments: data.itemList[0].statistics.commentCount.toString(),           userImg: data.itemList[0].author.avatarMedium.urlList[0],           favorite: data.itemList[0].statistics.diggCount,           coverImg: data.itemList[0].music.covermedium.urlList[0],         ),       ],     ),   ); }

　

结语

写到这里，手撸一个抖音app完成了基本功能，一些数据转化比喻点赞数还是原始int数据，需要转化成K M 等，后续待完善，毕竟花了一天时间来写这个app纯粹为了兴趣. 本人也极喜欢玩抖音.

另外因为写得匆忙，只测试了少量数据，json返回的数据有些为null ，也不知道具体是啥类型，这个待完善。 各位博友们觉得感兴趣的点个赞哈.  支持支持!

 

顺便说一下，各位支持的话点赞关注我继续完善剩余的部分，有需要学习了解的可以联系我，代码上传到github ，地址：https://github.com/WangCharlie/douyin，到这里就点个star, 谢谢.