Unable to see event on Amplitude about amplitude-flutter

[fmmalta]

I've figure it out

[haoliu-amp]

Would you like to try our SDK without having your own wrapper/inheritance?
To do it, please follow the example. https://github.com/amplitude/Amplitude-Flutter

instance name is:
Name of the SDK instance (e.g. no name for the default instance or a custom name for a named instance).

[fmmalta]

How can I retrieve the instance? Inherited? Instantiating a new one? It only has a function on README.md's example

Should I follow from example folder? Which means that I have to instantiate Amplitude right inside main.dart?

What's the difference between my code and the example? I know, perhaps the InheritedWidget AppState, that's why I'm asking.

[haoliu-amp]

To retrieve the instance, do

    final Amplitude analytics = Amplitude.getInstance(instanceName: "project");

To initialize, do.

    // Initialize SDK
    analytics.init(widget.apiKey);

You don't need to call the constructor explicitly.

[fmmalta]

So this analytics variable should be a global instance?

[fmmalta]

class AppAnalytics {
  static Amplitude _analytics = Amplitude.getInstance();

  static Future<void> start() async {
    await _analytics.init(AppConfig.instance.analyticsKey);
  }

  static void initTrackWithUserId(String userId, {String screenName}) {
    _analytics
      ..setUserId(userId)
      ..trackingSessionEvents(true)
      ..logEvent('acessed_$screenName');
  }

  static void sendEvent(String event, {Map<String, dynamic> props}) {
    _analytics.logEvent(event, eventProperties: props);
  }
}

This is the new code, no more singletons, still not working, what I'm missing?

Does static functions is a problem? I've added some break points to check if the functions were being called correctly and they were, the key was being passed, the instance is not null... I don't know what else can be done.