JavaFX关键监听器为多个键按下实现？ [英] JavaFX key listener for multiple keys pressed implementation?

问题描述

我想创建一个事件处理程序来侦听多个键组合，例如同时按住 Ctrl 和 C 。

I would like to create an event handler that listens for multiple key combinations such as holding Ctrl and C at the same time.

为什么不能像那样（（... ==控制）&&（... == C））工作？

以下是我尝试使用的代码：

Here is the code I trying to work with:

textField.addEventHandler(KeyEvent.KEY_PRESSED, new EventHandler<KeyEvent>() {
    public void handle(KeyEvent event) {
        if ((event.getCode() == KeyCode.CONTROL) && (event.getCode() == KeyCode.C)) {
            System.out.println("Control pressed");
        } 
    };
});

推荐答案

解决此问题的一种方法是创建 KeyCombination 对象并将其部分属性设置为您在下面看到的内容。

One way to tackle this problem is to create a KeyCombination object and set some of its properties to what you see below.

请尝试以下操作：

textfield.getScene().getAccelerators().put(new KeyCodeCombination(
    KeyCode.C, KeyCombination.CONTROL_ANY), new Runnable() {
    @Override public void run() {
        //Insert conditions here
        textfield.requestFocus();
    }
});

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