java - 如何暂停/ sleep Java 程序直到单击按钮

Question

我创建了一个 Java 应用程序，它是一个屏幕录像机。首先，我添加了开始和停止录制的功能，但现在也要求添加暂停选项。我希望整个工作在单击“暂停”时停止，并在再次单击时恢复。我无法使用 sleep ，因为它需要时间。

我尝试过等待通知逻辑。有人可以指导我，如何停止代码工作直到再次单击吗？

boolean paused;
    //boolean paused=false;
    @FXML
    private void pauseRec(ActionEvent event) throws AWTException, InterruptedException
    {
        if (paused==false)
        {
            paused= true;
            pauseRec.setText("Resume");
            recordStateLabel.setText("Recording Paused");
            synchronized(threadObject)
            {
                // Pause
                try 
                {
                    threadObject.wait();
                } 
                catch (InterruptedException e) 
                {
                }
            }
            //rob.delay(10000);
        }
        else if(paused ==true)
        {
            paused=false;
            pauseRec.setText("Pause");
            recordStateLabel.setText("Recording..");
            synchronized(threadObject)
            {
                threadObject.notify();
            }
        }
    }

Answer 1

Timeline timeline = new Timeline(new KeyFrame(Duration.seconds(1), e -> System.out.println("Printed after 1 second from FX thread")));
timeline.play();

So this will pause the current working for 1 sec duration and will resume afterwards. For your case you can make this function to run for finite time and then resume as the resume button is clicked.

Follow this link for more details