call_later doesn't wait to screen refresh

[climbus]

From doc string call_later method: "Run a callback after processing all messages and refreshing the screen."

If I have good understanding, I can deffer call methods after rendering app.

I checked it in expample/sample.py and added sleep to function get_markdown:

async def get_markdown(filename: str) -> None:                                
   time.sleep(1)                                                             
   with open(filename, "rt") as fh:                                          
        readme = Markdown(fh.read(), hyperlinks=True)                         
   await body.update(readme)

I see black screen for 1 second after start. What am I doing wrong?

I need to defer loading content after app first screen renders.

Thanks

[willmcgugan]

Using the non-async sleep is probably not a fair comparison since that will block everything, but there is still a flaw there. The call_later should be called after a refresh. I'll have a fix for that in a later version.

[climbus]

Ok, thanks