为什么我的Thread使我的JavaFX应用程序滞后？ [英] Why is my Thread making my JavaFX Application lag?

问题描述

我正在尝试使用控制器类中的此代码创建一个跟踪鼠标移动的JavaFX应用程序：

I'm trying to make an JavaFX application that tracks the movement of my mouse for this im using this code in the controller class:

 new Thread(new Runnable() {
        @Override public void run() {
            while (Main.running) {
                Platform.runLater(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            label.setText(MouseInfo.getPointerInfo().getLocation().toString());
                            Thread.sleep(1000);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                });
            }
        }

    }).start();

但它使我的申请延迟了很长时间。
我该如何解决这个滞后问题？

But it couses my application to lag big time. How should i fix this lag problem?

谢谢我修好了：

  new Thread(new Runnable() {
        @Override public void run() {
            while (Main.running) {

                Platform.runLater(new Runnable() {
                    @Override
                    public void run() {
                         label.setText(MouseInfo.getPointerInfo().getLocation().toString());

                    }
                });
                try {
                    Thread.sleep(200);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }

    }).start();

推荐答案

你在做什么让Javafx应用程序线程 Thread.sleep（1000）; < -wait

What you doing is letting Javafx Application thread Thread.sleep(1000); <-wait

你应该对JFX-AT进行任何长期行动。并且只更新你的ui组件。

Any long term action you shoud put OUT of JFX-AT. And only update your ui components on it.

new Thread(()->{
while(Main.running){
Platform.runLater(()->{

//updateui component
//this is updating on FXAT

});
Thread.sleep(time)//This way you dont let JFXAT wait
}
}).start();

//不确定格式化和花括号是否正确。希望你能理解。确定你知道哪个线程，你让等待。否则你将无法从暂停的jfxat收到事件。

//Not sure if formatted and curly braces correctly.Bud you hopefully understand.Make sure you know which thread you let wait.Otherwise you wont be able to recieve events from paused jfxat.

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