获取字符串到其他类（颤振）

Question

我需要在“ MovieDetail”类中获取链接变量，以便在“ void _detailDialog”中使用它，但是当我按下共享按钮时，该值为空。链接变量位于类“ VideoView”中

class MovieDetail extends StatefulWidget {
  @override
  _MovieDetailState createState() => _MovieDetailState();
}

class _MovieDetailState extends State<MovieDetail> {
  final videoView = VideoView();
  final moviesProvider = MoviesProvider();
  final scrollController = ScrollController();
  GlobalKey<ScaffoldState> _scaffoldkey = new GlobalKey<ScaffoldState>();

  void _detailDialog(BuildContext context) {
    showDialog(
        context: context,
        builder: (BuildContext context) {
          return AlertDialog(
            title: new Text('Enviar a WebVideoCaster'),
            content: new Text('(Necesitas descargar la app)'),
            actions: <Widget>[
              new FlatButton(
                child: new Text("Enviar"),
                onPressed: () {
                  Share.share(Cast.all(context, link: videoView.link));
                },
              )
            ],
          );
        });
  }
}

class VideoView extends StatefulWidget {
  final String link;
  final bool progress;

  VideoView(this.link, {this.progress = true});

  @override
  _VideoViewState createState() => _VideoViewState();
}

Answer 1

在_MovieDetailState类中创建VideoView实例时，只需传递链接即可。

final videoView = VideoView("your-link-goes-here");