Acknowledged
2 months ago

Request - specify if WatchUi.View.onUpdate() is required or optional

If onUpdate() calls would allow differentiating between updates that are required and that are optional, it would allow avoiding unnecessary repainting.

For example, if a watch face does not require updating every second (by showing just HH:MM), then 59 repaints every minute in high-power mode go to waste.

On the other hand, if the OS wipes the screen clean for some reason, then onUpdate() obviously must execute.

The request is to change onUpdate to include an extra parameter to specify if the update is optional or not:

onUpdate(dc as Graphics.Dc, required as Boolean) as Void

This would help writing more power-efficient code.

eau_de_vie
Parents
  • 2 months ago

    “It's causing CIQ faces to feel sluggish when entering high-power mode, and it's draining batteries.”

    According to “accepted forum wisdom” there’s no possible advantage to only updating part of the display in onUpdate() (even if the API was able to communicate under which circumstances this is possible / permissible.)

Comment
  • 2 months ago

    “It's causing CIQ faces to feel sluggish when entering high-power mode, and it's draining batteries.”

    According to “accepted forum wisdom” there’s no possible advantage to only updating part of the display in onUpdate() (even if the API was able to communicate under which circumstances this is possible / permissible.)

Children
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