java - 如何将 keyListener 添加到扩展 Thread 的类

Question

线程不包含名为 addKeyListener() 的方法，但有没有办法将 addKeylistener 方法添加到线程？我需要听击键。

public class TypeHelperMain extends Thread implements KeyListener    
    {


        public TypeHelperMain(){

            addKeyListener(this);

        }

Answer 1

如果您尝试在 Swing 应用程序中执行此操作，那么我会推荐这种方法：

KeyboardFocusManager.getCurrentKeyboardFocusManager().addKeyEventDispatcher(
        new KeyEventDispatcher() {
            public boolean dispatchKeyEvent(KeyEvent keyEvent) {
                if(keyEvent.getID() == KeyEvent.KEY_TYPED) {
                    System.out.println("Captured: " + keyEvent.getKeyCode());
                }
                return false; // allowing it to be dispatched further
            }
        });

资料来源：http: //portfolio.planetjon.ca/2011/09/16/java-global-jframe-key-listener/