Value / Declaration question

hi everyone!

so here is my code to get Elevation :

    	if (!PSM && (Toybox has :SensorHistory) && (Toybox.SensorHistory has :getElevationHistory)) {
         	if (SensHist.getElevationHistory({})!=null){
         		var data = SensHist.getElevationHistory({}).next().data;
         		if(Sys.getDeviceSettings().elevationUnits==Sys.UNIT_STATUTE){data=data*3.28;}
         		dc.drawText(5, y, CFVS, data.toNumber(), TJL);
        	}
    	}

it works perfectly on mine but I don't understand it does not work on some device like MARQ.

Do I have to test whether data is null too?

jim_m_58 over 7 years ago

I'd do the null check, including when you do the next() and before accessing data.

You can also look at Activity.Info.altitude (null check that too)

Shent-Aurkhan (SHN) over 7 years ago in reply to jim_m_58

Thanks,

Does the activity. Info. Altitude is the last elevation recorded from the last activity or does it work like sensor history ?

jim_m_58 over 7 years ago in reply to Shent-Aurkhan (SHN)

It should be the current and not delayed a couple minutes like SensorHistory if the device has a baro.

Shent-Aurkhan (SHN) over 7 years ago in reply to jim_m_58

Many thanks.

Shent-Aurkhan (SHN) over 7 years ago in reply to jim_m_58

hi!

is it possible to loop on method like with .invoke?

for exemple:

var SENSOR = [:getTemperatureHistory,:getPressureHistory,:getElevationHistory];
var Data = new[3];

for (var i=0;i<3;i=i+1){
    if (SensHist has SENSOR[i]){
        Data[i] = SensHist.SENSOR[i]
    }

of course SensHist.SENSOR[i] does not work...

have a great day

Shent-Aurkhan (SHN) over 7 years ago in reply to Shent-Aurkhan (SHN)

I think I found it (if it can help)

var SENSOR = [:getTemperatureHistory,:getPressureHistory,:getElevationHistory];
			var Data = new[3];
			var getMethod;
			for (var i=0;i<3;i=i+1){
	    		if (SensHist has SENSOR[i]){
	        		getMethod = new Lang.Method( SensHist, SENSOR[i]);
	        		if (getMethod.invoke({:period=>1})!=null){Data[i] = getMethod.invoke( {:period=> 1} ).next().data;}
	        	}
	        }