How to force pixels to hit the screen?
kevin.rushforth at oracle.com
Tue May 20 18:56:31 UTC 2014
> Is there any way to wait for the rendering thread to settle and
> process the commands produced by the app thread?
No guaranteed way that I know of; we run into a similar issue with our
robot-based unit tests. Using an AnimationTimer and waiting for a few
frames might work, but it sounds like you tried that?
Using the Preloader
Mike Hearn wrote:
> As long as you are doing any of the "heavy lifting" on the FX
> application thread it will necessarily starve the rendering, since
> the application thread is where animation is run and rendering is
> triggered. Applications are encouraged to do computationally
> expensive tasks or tasks that are subject to blocking (e.g.,
> network reads) on a different thread.
> Yes, unfortunately one of the heavy tasks is FXMLLoader.load which
> hits the threading issues I emailed about earlier.
> But I'm not sure I really understand this. I'm OK with my (non
> interactive) splash being hung whilst the app thread goes off and do
> other things, as long as it was able to draw at least one frame to the
> screen. Is there any way to wait for the rendering thread to settle
> and process the commands produced by the app thread?
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