trackScreenView method

@override Future<void> trackScreenView(String name, [ Map<String, dynamic>? properties ])

Tracks a screen view.

Emits a screen_view event (through the normal pipeline, so it is stamped with the active last-click attribution context) carrying the screen name and — when available — the previously tracked screen, so the dashboard can build a per-link screen-flow funnel.

• name: Screen name (e.g., "ProductDetail")
• properties: Optional additional properties

Implementation

@override
Future<void> trackScreenView(
  String name, [
  Map<String, dynamic>? properties,
]) async {
  if (name.trim().isEmpty) {
    throw InvalidEventDataError('Screen name cannot be empty');
  }

  final previous = _lastScreen;
  _lastScreen = name;

  final eventProperties = Map<String, dynamic>.from(properties ?? {});
  eventProperties['screen'] = name;
  if (previous != null && previous != name) {
    eventProperties['previousScreen'] = previous;
  }

  await trackEvent('screen_view', eventProperties);
}