Question

java tab键 回车键

如何可以实现用回车键可以像tab键一样切换TextField的焦点？

Answer 1

f (event.keyCode == 13){window.event.keyCode = 9;}用回车换成TAB

用js就可以了 如果用JAVA是同理 keyCode 都有代码的 直接替键不用重写功能

追问

public void keyPressed(KeyEvent e) {
int key = e.getKeyCode();
if(key == KeyEvent.VK_ENTER) {
e.setKeyCode(KeyEvent.VK_TAB);
}
}
这样写了一下，没用，和js不同

追答

public class ComponentUtil {

private ComponentUtil() {

}
public static void setFocusComponents(JComponent[] component) {

JComponent preComponent = null;
JComponent currentComponent = null;
JComponent nextComponent = null;
for (int i = 0; i 0) {
preComponent = component[i - 1];
}

if (i < component.length - 1) {
nextComponent = component[i + 1];
}

if (i < component.length && component[i] != null) {
component[i].addKeyListener(new ComponentFocusKeyAdapter(
preComponent, currentComponent, nextComponent));
}
}
}
}

Answer 2

就是监听回车事件 然后切换焦点就行了,示例嗲吗如下：

public class MyTextField extends TextField {
MyTextField(int len) {
super(len);
addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent evt) {
int key = evt.getKeyCode();
if (key == KeyEvent.VK_ENTER)
transferFocus();}});
}
}

追问

用过了，没用，因为还有其他控件，比如Label所以transferFocus()方法不起作用