ChannelData.fromMap constructor

ChannelData.fromMap(Map<String, dynamic> map)

Implementation

factory ChannelData.fromMap(Map<String, dynamic> map) {
  var headers = map.get('header');
  var metaSubs = headers
      ?.get('pageHeaderRenderer')
      ?.get('content')
      ?.get('pageHeaderViewModel')
      ?.get('metadata')
      ?.get('contentMetadataViewModel')
      ?.getList('metadataRows')?[1];

  String? subscribers =
      metaSubs?.getList('metadataParts')?[0].get('text')?['content'];

  String? videoCounts =
      metaSubs?.getList('metadataParts')?[1].get('text')?['content'];

  String channelName = headers?.get('pageHeaderRenderer')?['pageTitle'];

  String avatar = headers
      ?.get('pageHeaderRenderer')
      ?.get('content')
      ?.get('pageHeaderViewModel')
      ?.get('image')
      ?.get('decoratedAvatarViewModel')
      ?.get('avatar')
      ?.get('avatarViewModel')
      ?.get('image')
      ?.getList('sources')?.first['url'];

  String? banner = headers
      ?.get('pageHeaderRenderer')
      ?.get('content')
      ?.get('pageHeaderViewModel')
      ?.get('banner')
      ?.get('imageBannerViewModel')
      ?.get('image')
      ?.getList('sources')
      ?.first['url'];

  var contents = map
      .get('contents')
      ?.get('twoColumnBrowseResultsRenderer')
      ?.getList('tabs')?[1]
      .get('tabRenderer')
      ?.get('content')
      ?.get('richGridRenderer')
      ?.getList('contents');
  var contentList = contents!.toList();
  List<Video> videoList = [];
  for (var element in contentList) {
    Video video = Video.fromMap(element);
    videoList.add(video);
  }

  return ChannelData(
      videosList: videoList,
      channel: ChannelPage(
          // ignore: unnecessary_null_comparison
          channelName: (channelName != null) ? channelName : " ",
          subscribers: (subscribers != null) ? subscribers : " ",
          videoCounts: (videoCounts != null) ? videoCounts : " ",
          // ignore: unnecessary_null_comparison
          avatar: (avatar != null) ? avatar : " ",
          banner: (banner != null) ? banner : " "));
}