问题 How can I switch the screen and still save the progress of the current game? For example I have an additional screen, when you press tab key, that shows some information about the player (attributes, stats, etc.), but when you switch the screen again to resume your game the show method is called again and you lose everything... The only method I know is that before you hide the screen to save the game in some format and load it in show but I highly doubt that this is the proper way to do it,