getMeasurement method

@override Future<Measurement?> getMeasurement()

Subclasses should implement / override this method to collect the Measurement. This method will be called every time data has been buffered for a duration and should return the final measurement for the buffered data.

Can return null if no data is available. Can return an Error if an error occurs.

Implementation

@override
Future<Measurement?> getMeasurement() async =>
    _data != null ? Measurement.fromData(_data!) : null;