如何使Java Robot按住一个键? [英] How to make Java Robot hold down a key?

问题描述

我想使用Java机器人按住某个键一段时间.我读过其他类似的主题，但是它们都不起作用.反复按该键只会导致该键无法释放.

I want to hold down a key for a certain amount of time using the Java robot. I have read other similar threads, but none of them work. Repeatedly pressing the key will only result in the key not releasing.

到目前为止，这是我的代码(由于只按了一次键，因此无法正常工作):

Here's my code so far (It does not work since it only presses the key once):

new Thread(new Runnable() {
         public void run() {
             final int keyP = 0; //the key to press

                            final int duration = 2000 //2 seconds
                            Robot r = null;
                            try {
                                r = new Robot();
                            } catch (AWTException e1) {
                                                        e1.printStackTrace();
                            }
                            r.keyPress(keyP);
                            r.delay(duration); //Thread.sleep does the same thing
                            r.keyRelease(keyP);

                            }
                 }).start();

推荐答案

尝试:

boolean keepPressing=true;
long startTime = System.currentTimeMillis();
long endTime=null;
long totalTime=null;

while(keepPressing){
    r.keyPress(keyP);
    endTime=System.currentTimeMillis();
    totalTime = endTime - startTime;
    if(totalTime>1999) {
      keepPressing=false;
      r.keyRelease(keyP);
    }
}

这篇关于如何使Java Robot按住一个键?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！