Could use some feedback for first Watch Face.

The logo dimensions differ on almost all devices. IMHO you don't need to scale it, when you build for any device you'll see the "warning" in the console that it's being automatically resized. I usually make it big enough for the biggest size needed, so at least all are being down-sized and not up.

Nothing is drawn in onLayout, only in onUpdate. in onLayout you have the dc so you can do heavy calculations and save the results and use the pre-calculated values in onUpdate.

You can use the profiler to see which part of the code runs for the most time, that usually indicates also which part of the code is bad for the battery. When I started to read your post my 1st thought was: why don't you find something ready? The time to make something new good enough for others (especially if this is your first CIQ app) could've maybe be invested better. My second thought was: for sure the battery will drain fast. My 3rd thought was: if it's a running group then why watchface and not a datafield?

You can find the profiler in the simulator: File > View Profiler . Do as little in onUpdate as possible. Also learn about onPartialUpdate, though not sure if that matters a lot in forerunners.

About app settings: developer.garmin.com/.../

About on-device settings/menu: https://developer.garmin.com/connect-iq/core-topics/native-controls/

thanks for your input!

when talking about the logo, i'm talking about a png, not the loading-triangle thing. but does your comment still apply? then i'd try to just leave it bigger.

found the profiler and will have a look into it - i was thrown of by it only showing data once stopped and not "in real time" i guess.

And regarding the project itself: well, i like a good challenge. and i code 30 hours a week so i'm pretty confident i'll get the hang of it pretty quick. The idea would be for my running group to be able to download the watch face and have it display our logo - that's about it. just for fun.

kevinos said:

I'm targeting the Forerunner Series. I scaled the logo to 200px width, so it should fit on every watch. Am I right that there's now way to scale it according to the available display width?

I assume you're using a bitmap and not just the launcher icon.

You can have the compiler scale it for the screen size by doing something like this:

<bitmap id="x" filename="test.png" scaleRelativeTo="screen" scaleX="100%" scaleY="100%"></bitmap>

where this will make it 100%x100% regardless of the screen dimensions.  For example, a fr965 is 454x454 so you may want something larger than 200px

I was talking about the launcherIcon. 

Ah I see now that there's another logo. I see you have it 50%. I hope that that's only done once... It's a good question, and I don't no neither the answer nor how to check it (maybe the profiler by down-sizing a huge image to some small one, and then compare it when you resize the image offline and the layout doesn't need to resize it)