Hey guys!
This is a threading issue more than a LibGDX issue, hence the subforum.
[quote=“docs of Scene2D”]The Stage and its constituents (like Actors and Listeners) are not thread-safe and should only be updated and queried from a single thread (presumably the main render thread). Methods should be reentrant, so you can update Actors and Stages from within callbacks and handlers.
[/quote]
I don’t understand how this is implemented. I’ve found out that changing the Actors from different threads are not a solution, and doing that has caused me grief for the last couple of hours.
Now, the question is as follows: How can I generate data on thread A, and then change an Actor on thread B to display that data.
Specifically, this is what I am looking to do: I have a GUI (Stage) that includes a highscore table (an Actor in this case). Whenever the highscore table is shown, I want to query my server for the latest global highscores. Upon completion, I want the highscore table (Actor) to be updated to show the highscores from the server.
Since the server communication is blocking, this needs to happen on a different thread. However, when it’s complete it’s important that the highscore table (Actor) is updated from the main thread.
How can I achieve this?