Total Field on the FitContribution

Question

I had add a custom field of Lap related information into the Fit file but found that, the total field is missing. Can I know how to add the total field into the Lap data? code in function initialize() lapEpHField = createField("lapEpH", lapEpHField_ID, Fit.DATA_TYPE_DOUBLE, { :mesgType=>Fit.MESG_TYPE_RECORD, :units=>"EpH" }); recordLapEpHField = createField("MyLapEpH", recordLapEpHField_ID, Fit.DATA_TYPE_DOUBLE, {:mesgType => Fit.MESG_TYPE_LAP, :units=>"EpH" }); effortPointField = createField("MyEP", effortPointField_ID, Fit.DATA_TYPE_DOUBLE, {:mesgType => Fit.MESG_TYPE_SESSION, :units=>"EpH" }); totalEpHField = createField("MyLapEpH", totalEpHField_ID, Fit.DATA_TYPE_DOUBLE, {:mesgType => Fit.MESG_TYPE_SESSION, :units=>"EpH" }); Codes in the xml file

flowstate · Answer

If I had to make an educated guess, I'd say you were calling totalEpHField.setData() in onTimerStop(). Don't do this, as it's probably too late to write your data. 
 You should be able able to fix your problem by calling setData() for all your fields every second in compute(). 
 Calling setData() won't actually cause the data to be written, it'll just set the value to be written when the app actually gets around to it. In the case of a summary value, the last call of setData() before the value is written will win. (That's why it's called "setData" and not "writeData"))

Total Field on the FitContribution

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