How to properly implement CheckBox in LibGDX

问题

I want to implement a checkbox in my game for switching volume on and off. I have this so far, but it's not working properly:

MusicOnOff.addListener( new InputListener() {
  public void touchUp (InputEvent event, float x, float y, int pointer, int button) {
    MusicOnOff.toggle();
  }
  public boolean touchDown (InputEvent event, float x, float y, int pointer, int button) {
    System.out.println("Music: " + MusicOnOff.isChecked());
    return true;
  };
});

EDIT: Ok, never mind. It's toggling with the right mouse button :O. Left is not working though

回答1:

Never used Checkbox, but I'm guessing it's supposed to automatically toggle, so if you do

MusicOnOff.toggle();

you may actually toggling it twice, giving the feeling that it never toggles.

来源：https://stackoverflow.com/questions/19350350/how-to-properly-implement-checkbox-in-libgdx