游戏计时器不会停止

Question

I am trying to set a timer to randomly set the frame in the screen, but then, depending on the boolean , set it back to normal. I have already tried .cancel() but it doesn't work. How could I stop this timer?:

if(e.getSource()==impossible){

            impossiblity=!impossiblity;
            System.out.println(impossiblity);
            if(!impossiblity){
                new Timer().schedule(new TimerTask() {
                    public void run()  {
                        int randWidth=(int)((dim.width-gameFrame.getSize().width) * Math.random());
                        int randHeight=(int)((dim.height-gameFrame.getSize().height) * Math.random());
                        gameFrame.setLocation(randWidth, randHeight);//sets location to center
                    }
                }, 1000, 1000);
            } else gameFrame.setLocation(dim.width/2-gameFrame.getSize().width/2, 0);//sets Location to center of screen
        } 

right now it does set the gameframe back to normal but then goes right back to randomizing

Answer 1

In general trying to cancel timers or other threads from outside the thread is a bad idea and leads to all sorts of problems.

Your best bet is to set some sort of flag or counter that the TimerTask checks when it comes to run.