sendEvent method
Sends an Event hit to Google Analytics. label
specifies the event label.
value
specifies the event value. Values must be non-negative.
parameters
can be any analytics key/value pair. Useful
for custom dimensions, etc.
Implementation
@override
Future<void> sendEvent(String category, String action,
{String? label, int? value, Map<String, String>? parameters}) {
parameters ??= <String, String>{};
return _log(
'event',
{'category': category, 'action': action, 'label': label, 'value': value}
..addAll(parameters));
}