parameter in onUpdate or call onHide/onShow

_psx_ over 4 years ago

SDK should send parameter in onUpdate(p) where p:

- force update - but not always as is now

- overalaped - for example if goal reached message appear (ont onShow/ onHide)

- id view/app ...

-x,y,w,h need to be changed

- etc. something to help to know that area should be drawn

or call onHide/onShow when something happened on screen when it's not action foreground aplication

it helps to write more optimise drawing, simple example:

- time without seconds, big font - drawing it cost a lot

- but it should be changed only once per minutes/hours

0 flowstate over 4 years ago

_psx_ said:
- time without seconds, big font - drawing it cost a lot

- but it should be changed only once per minutes/hours

Can't you track this kind of thing in your own app?

0 _psx_ over 4 years ago in reply to flowstate

Of course I can and I do it but for example when goal reach or BT connection is changed the system draw message over my watchface and leave it's pixel in place where I don't draw. I don't call View.onUpdate(dc) so screen isn't cleared every second.

0 flowstate over 4 years ago in reply to _psx_

I have a feeling the ppl who designed the API don't want you to worry about whether your view is obscured by some system notification, just to save a tiny bit of battery by not drawing something that should only be covered for a few seconds anyway.

It is a nice goal to want to optimize things as much as possible tho. It would be nice if you knew what parts of the view were obscured, but I have a feeling that change isn't going to happen.

0 jim_m_58 over 4 years ago in reply to _psx_

It's only every second when a WF isn't in low power mode, and then it's for 10 seconds after a gesture. The vast majority of the time, onUpdate() is only called once a minute.