Ticket Created
over 5 years ago

WERETECH-8406

DC content is not persistent between onUpdate on real VA4 but it is persistent in simulator

In simulator (VA4) is DC content persistent between onUpdate calls and it is possible to draw only changes. On real VA4 is DC content cleared before every onUpdate and it is necessary to draw whole display content.

VA4: 3.80, SDK: 3.1.6

jha2
  • over 5 years ago

    Yes please, this needs to be fixed finally. I use some optimizations like a partial redraw in my watchface My Day 24 and the Maze Game, it works on all watches except the VA4 (and VA4s). And it works in a simulator.

  • over 5 years ago

    I have a user replay with the same issue on a VA4s. DC is completely cleared with black background before OnUpdate is called. As workaround I must write all content that’s not stored in buffered bitmap new also content it’s not changed. The result is a higher energy consumption. On simulator all is ok. 
    I think it’s  a firmware bug on VA4 types.