Very basic question, but it's hard to formulate it, so I can't find a solution

So… I want to make some devices in game, smartphone for example. It’s elementary to make it in UI, but
how to realize things like display battery remaining directly on smartphone’s screen?
P.S. Sorry for bad english maybe

i dont know if i understood your question. you have a smartphone image in the game and you want to show inside the battery level? you can add an image inside the device, make in the image type property filled, and you can retrieve the batery info using this and just assign the Image.fillamount to the batery level.