如何在Java中按下/键入TAB键？

Question

    private void jTextField1KeyPressed(java.awt.event.KeyEvent evt)
    {
        //cant capture my TAB?
        System.out.print(evt.getKeyChar());

    }

在没有使用焦点监听技术的情况下,java gui捕获tab键的最简单方法是什么？

Answer 1

VK_TAB是制表符常量.

然而: No Tab key-pressed or key-released events are received by the key event listener. This is because the focus subsystem consumes focus traversal keys, such as Tab and Shift Tab.

请参阅:http://docs.oracle.com/javase/tutorial/uiswing/events/keylistener.html

要解决此问题,请将以下内容应用于触发键事件的组件(例如,TextArea):

.setFocusTraversalKeysEnabled(false)

使用此方法,您必须显式处理焦点遍历.或者, KeyEventDispatcher类可用于预先监听所有键事件.