FIT CONTRIBUTIONS SWITCH

How can I do a fit contributions simple switch on settings, is this ok??

using Toybox.FitContributor;
using Toybox.WatchUi;
class BananasEarnedView extends WatchUi.SimpleDataField
{
    var bananasEarnedField = null;
    var totalBananas = 0.0;

    const CALORIES_PER_BANANA = 105.0;
    const BANANAS_FIELD_ID = 0;

    function initialize() {
        SimpleDataField.initialize();

        // Create the custom FIT data field we want to record.
        if (fitCont = 0) {
    
        bananasEarnedField = createField(
            "bananas_earned",
            BANANAS_FIELD_ID,
            FitContributor.DATA_TYPE_FLOAT,
            {:mesgType=>Fit.MESG_TYPE_RECORD, :units=>"B"}
        );
        }
        function onTimerStop();
        if (fitCont = 0) {
        bananasEarnedField.setData(0.0);
        }
    }

    function compute(info) {
        if (info != null && info.calories != null) {
            // Calculate and set data to be written to the Field
            totalBananas = (info.calories / CALORIES_PER_BANANA).toFloat();
            bananasEarnedField.setData(totalBananas);
        }
        // Display the data on the screen of the device
        return totalBananas;
    }
}

9635560 over 5 years ago

if (fitCont = 0) {

Be CAREFUL!

x = 9; // Assign the value 9 to x and return x

x == 9; // Compare the value in x to 9 and return boolean

When you use x = 9 in a conditional, you will CHANGE THE VALUE of x AND get a result you didn't intend!

xuxumatu over 5 years ago in reply to 9635560

thanks ok but my question is if stoping create field is the way to do it?

9635560 over 5 years ago in reply to xuxumatu

I don't see where you define fitCont. Is it meant to come from settings?
If so, you should having something like:

var fitCont = Application.getApp().getProperty("fitCont");
if(fitCont == 0) {
    // Do stuff if this condition is met...
}

And in your compute method, you don't ever check whether you have a bananasEarnedField even though it is not guaranteed to have been built during your setup.

So you might have something like:

if(bananasEarnedField != null) {
    bananasEarnedField.setData(totalBananas);
}

And I don't see the need to explicitly set data in onTimerStop, why not just reset totalBananas to zero? You only want to be setting data while the field is running, which is during compute, so resetting totalBananas would be as save a means as any to achieve that.

xuxumatu over 5 years ago in reply to 9635560

because it sends me error

Error: Unexpected Type Error

Details: Failed invoking <symbol>

Stack:

- onTimerStop() at /Users/lcda/eclipse-workspace/PowerEdgePro/PowerEdgePro-master/source-530/PowerEdgeProView.mc:217 0x10001463

xuxumatu over 5 years ago in reply to xuxumatu

or maybe i´m doing an error ¿do i need setData on timerStop() ??

9635560 over 5 years ago in reply to xuxumatu

No, you don't need to setData in onTimerStop.

9635560 said:
why not just reset totalBananas to zero?

xuxumatu over 5 years ago in reply to 9635560

thanks i´m going to try it