waitForStart method

@override Future<void> waitForStart(CancellationToken cancellationToken)

Called at the start of Host.start(cancellationToken) which will wait until it's complete before continuing. This can be used to delay startup until signaled by an external event.

Implementation

@override
Future<void> waitForStart(CancellationToken cancellationToken) async {
  applicationLifetime
    ..applicationStarted.register(
      (state) => (state as FlutterLifetime)._onApplicationStarted(),
      this,
    )
    ..applicationStopping.register(
      (state) => (state as FlutterLifetime)._onApplicationStopping(),
      this,
    )
    ..applicationPaused.add(_onPaused)
    ..applicationResumed.add(_onResumed)
    ..applicationInactive.add(_onInactive)
    ..applicationDetached.add(_onDetached);

  applicationLifetime.applicationStarted.register(
    (_) {
      WidgetsFlutterBinding.ensureInitialized();

      Widget? widget;
      for (var builder in _builders) {
        widget ??= _application;
        widget = builder(_services, widget);
      }

      runApp(widget!);
    },
  );
}