JAVA中焦点在JTextField中按下键盘TAB键却监听不到

Question

this.setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, Collections.EMPTY_SET);     this.setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, Collections.EMPTY_SET);
详细可参考：Swing_快捷键JTextField

Answer 1

//经过测试果然,可以,膜拜大神,感谢!代码如下
package com.test.swing;import java.awt.Dimension;
import java.awt.KeyboardFocusManager;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.Collections;import javax.swing.JFrame;public class Test extends JFrame { public Test(){
super();
//this.setPreferredSize(new Dimension(300,200)); this.setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, Collections.EMPTY_SET);
this.setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, Collections.EMPTY_SET); this.setSize(new Dimension(300,200));

this.addKeyListener(new KeyListener() {

@Override
public void keyTyped(KeyEvent e) {
//System.out.println(e);
}

@Override
public void keyReleased(KeyEvent e) {
//System.out.println(e);

}

@Override
public void keyPressed(KeyEvent e) {
System.out.println(e);

}
});
this.setAlwaysOnTop(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// this.pack();
this.setLocationRelativeTo(null);
this.setVisible(true);

}
/**
 * @param args
 */
public static void main(String[] args) {
new Test();
}}