Building first app, but code seems to be very inefficient

You are reading a single comment by @fanoush and its replies. Click here to read the full conversation.

•

Gordon

What you're doing there with the getShoeImageSource function looks good to me.

In terms of the different rendering, could it be that the default 'theme' is different on Bangle.js 1 and 2? 1 uses white on black, 2 uses black on white, but they are configurable.

The layout library is a tricky one - it does use a lot more memory/time than just manually specifying sizes, but then it is a lot more flexible. I'd love to get the memory usage down, but it's hard as it does have to store the layout information for each UI element.

•

fanoush in reply to @Gordon
What you're doing there with the getShoeImageSource function looks good to me.

Well, just measured and calling the getShoeImageSource takes 15ms
```
>var d=Date();getShoeImageSource();d=Date().ms-d.ms;
=15.47241210937
>var d=Date();getShoeImageSource();d=Date().ms-d.ms;
=15.65551757812
```
writing to file and then drawing it from file vs from getShoeImageSource
```
var s=require("Storage")
s.write("yyshoeimage",getShoeImageSource())
>var d=Date();g.drawImage(s.read("yyshoeimage"),20,20);d=Date().ms-d.ms;
=12.05444335937
>var d=Date();g.drawImage(getShoeImageSource(),20,20);d=Date().ms-d.ms;
=26.51977539062
```
whether 15ms of CPU time is worth optimizing (for power, when e.g. redrawing watchface periodically) is of course debatable, if drawn every second it can make a difference.

About

Avatar for fanoush @fanoush started