暂停并恢复ScheduledExecutorService [英] Pause and resume a ScheduledExecutorService

问题描述

我正在写一个俄罗斯方块.我希望每60秒使碎片落下一点点，为此，我正在使用

I'm writing a tetris-clone. I want to make the pieces fall a tad faster after every 60 seconds, and for this I'm using a ScheduledExecutorService:

executor.scheduleAtFixedRate(new Runnable() {
    @Override
    public void run() {
        levelUp();
    }
}, 60, 60, TimeUnit.SECONDS);

现在，我可以暂停游戏了，而暂停时，游戏显然会停止执行任何操作，直到我继续游戏为止.就像现在这样，暂停游戏是一件好事，除了这位执行者负责升级"之外，所有事情都可以暂停.例如，如果我玩了50秒钟，暂停了游戏一分钟，然后又继续玩了10秒钟，我将处于第2级，而我应该处于第1级(我们从第0级开始).有没有一种方法可以暂停并恢复执行器?

Now, I can pause the game, and while paused the game obviously stops doing anything until I resume it. As it is now, pausing the game is well and all for everything but this executor taking care of "leveling up". For example, if I played for 50 seconds, paused the game for a minute, resumed and played another 10 seconds, I would be at level 2, while I'm supposed to be at level 1 (we start at level 0). Is there a way of pausing and resuming the executor?

请注意，仅在暂停时不进行升级是不够的:如果我播放50秒，然后暂停20秒，然后继续播放，那么在升级之前，我还必须再播放50秒，而不是原来的10秒

Note that simply not leveling up while paused is not enough: if I play for 50 seconds, then pause for 20 seconds and then resume, I would have to play another 50 seconds before I level up, instead of the supposed 10 seconds.

那么，有没有办法暂停和恢复ScheduledExecutorService?

So, is there a way to pause and resume a ScheduledExecutorService?

推荐答案

查看此和这问题.默认情况下，不支持暂停和恢复ScheduledExecutorService，可以将其停止.您必须处理任务的安排.

Look at this and this questions. By default there is no support to pause and resume a ScheduledExecutorService, it just can be stopped. You have to play with the scheduling of the tasks.

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