_onStateChanged listener is only once?

[shinriyo]

I wrote the example. https://pub.dartlang.org/packages/flutter_webview_plugin#-example-tab-

I pushed "Open widget webview" button. The example show log text onStateChanged: WebViewState.startLoad and onStateChanged: WebViewState.finishLoad in the bottom.

I pushed "Open widget webview" button again, but it didn't show log text again. Why only once?

I just want to do is that call JS when WebviewScaffold's url finish.

[joelbrostrom]

I'm in the same scenario. I listen for urls with https protocol, and the first on it finds it catches and reloads the web view with it. After that all incoming urls are ignored.

I tried re-adding the listener, close and re-launch the flutterVebviewPlugin and even disposing of it an re-initiating it. None makes a difference.

The only way I manage to reset it is by reseting the app.

[joelbrostrom]

Ok, there seams to be away around this. Set the onStateChanged listener INSIDE or your BUILD method so that it rebuilds every time your Web view does. In my case I was using BLoC and tried setting it in the build method, but above the block builder, which resulted in it only being rebuilt when the block class itself was.

@override
  Widget build(BuildContext context) {
    final HomeBloc _homeBloc = BlocProvider.of<HomeBloc>(context);
    // my_webview_provider.addListenerWithBloc(_homeBloc); <--- BAD: setting .onSatusChanged build is not enough when using BLoC, since only the BLoC scope will rebuild when possible.
    return BlocBuilder<HomeEvent, HomeBlocState>(
      bloc: _homeBloc,
      builder: (BuildContext context, HomeBlocState state) {
        my_webview_provider.addListenerWithBloc(_homeBloc); <--- GOOD: setting .onSatusChanged inside of BlocBuilder scope.

        if (state is HomeWebview) {
          my_webview_provider.reloadWithUrl(_tabUrls[_currentTabIndex]);
    ...
    ...

[tegarkurniawan]

same issue