create method
Implementation
@override
Future<int> create() async {
final int _currentView = _viewCounter;
final html.DivElement div = html.DivElement();
String playerId = "player_$_viewCounter";
div.id = playerId;
div.setAttribute("style",
"border: none; display: block; margin: 0; width: 100%; height: 100%;");
ui.platformViewRegistry
.registerViewFactory('player_$_currentView', (int viewId) => div);
_videoPlayers[_viewCounter] = div;
_listeners[playerId] = StreamController<VideoEvent>();
_viewCounter++;
return _currentView;
}