Checking altimeter presence in watchface

Dear Community,

In my watchface I show steps climbed progress, however some watches do not have altimeter. Respectively, watchface crashes due to failure to find "floorsClimbed".

I was thinking to do the IF check like

if (floorsClimbed) ...

but that doesn't work. There's no such symbol.

Can anyone please advise most effective way of checking sensor presence, so that the solution won't be model dependent?

Thanks in advance!

Top Replies

Shent-Aurkhan (SHN) over 3 years ago +1 suggested

Hi,

FloorClimbed belongs to ActivityMonitor.getInfo()

So you have to check.

If (ActivityMonitor.getInfo() has :FloorClimbed)

The same for altitude

If(Activity.getActivityInfo() has :altitude)
jim_m_58 over 3 years ago in reply to Shent-Aurkhan (SHN) +1

This is a cause where you'd want to do the "has" check in initialize and set a Boolean, as checking a boolean is more efficient that checking the contents of a dictionary.

Also, with anything…

All Replies

0 Shent-Aurkhan (SHN) over 3 years ago

Hi,

FloorClimbed belongs to ActivityMonitor.getInfo()

So you have to check.

If (ActivityMonitor.getInfo() has :FloorClimbed)

The same for altitude

If(Activity.getActivityInfo() has :altitude)

0 jim_m_58 over 3 years ago in reply to Shent-Aurkhan (SHN)

This is a cause where you'd want to do the "has" check in initialize and set a Boolean, as checking a boolean is more efficient that checking the contents of a dictionary.

Also, with anything in ActivityMonitor, you may want to check Sys.getDeviceSettings().activityTrackingOn, as a user could have turned it off, meaning things like steps and floors aren't counted. In settings in the sim you can turn this on and off.

0 Summer Son over 3 years ago in reply to jim_m_58

Thanks for the advice, Jim!

Yes, I'm checking

if (settings.activityTrackingOn)

during onUpdate() and then will check against a boolean, which I will set in onInitialize.

0 Jacquers 1 month ago in reply to jim_m_58

I'm experiencing an app crash on my Vivoactive 5 despite doing the check.At first I thought it was because I was trying to get it via Complications, but I took that out. It works fine in the sim, but crashes on my watch. It works fine on my 165.

Any ideas?

function getAltitude() {
        if (Activity.getActivityInfo() has :altitude) {
            return Activity.getActivityInfo().altitude.toNumber();
        }
        return "--";        
    }

0 Shent-Aurkhan (SHN) 1 month ago in reply to Jacquers

hi, as you could see here:https://developer.garmin.com/connect-iq/api-docs/Toybox/Activity/Info.html#altitude-var

altitude can be null, so here you are trying to convert null to a number,

you have to null check the Activity.getActivityInfo().altitude before the .toNumber()

0 Shent-Aurkhan (SHN) 1 month ago in reply to Shent-Aurkhan (SHN)

function getAltitude() {
        if (Activity.getActivityInfo() has :altitude) {
            var alt=Activity.getActivityInfo().altitude;
            return alt!=null?alt.toNumber():"--";
        }
        return "--";        
    }

0 Jacquers 1 month ago in reply to Shent-Aurkhan (SHN)

Nice, thanks!

0 jim_m_58 1 month ago in reply to Jacquers

That has check will always be true, even on devices without a baro altimeter like the va5 but will only have data if you are running an activity with GPS. And that can be very off even then.

The Baro is required to count floors, so if a watch doesn't count floors, that's an easy way to check.