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我使用键盘在布局之间跳转,但该功能在其他布局中是钢的,我需要此功能仅在 1 个布局中工作。

KeyboardFocusManager.getCurrentKeyboardFocusManager()
          .addKeyEventDispatcher(new KeyEventDispatcher() {
      @Override
      public boolean dispatchKeyEvent(java.awt.event.KeyEvent e) {
          
        
          
        System.out.println(e.paramString());
        String sa = e.paramString();
        char ch = sa.charAt(4);
        if(e.getKeyCode()==112 && ch=='R'){
        dispose ();
           Home d = new Home ();
           d.setTitle("Home");
           d.setVisible (true);
        }
        return false;
      }

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