createHeartRateVariability method
Creates an HKHeartRateVariability object from JSON map data. Extracts and validates required fields for heart rate variability measurements.
Implementation
@override
HkHeartRateVariability createHeartRateVariability(Map<String, dynamic> data) {
var errMsg = "Error occured when extracting hk heart rate variability data";
var quantitySample = _createQuantitySample(data, errMsg);
return HkHeartRateVariability(quantitySample);
}