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我正在尝试从中删除F10按钮键绑定JTextField，但下面没有任何工作：

getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_F10, KeyEvent.KEY_PRESSED), "none");
getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_F10, KeyEvent.KEY_TYPED), "none");
getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_F10, KeyEvent.KEY_RELEASED), "none");

实际上，我想控制弹出菜单 - 显示/隐藏，但F10不能正常工作 - 它正在执行一些其他操作。例如，如果我切换到F11，一切正常。

据我所知 - Shift+F10在各种平台上显示弹出窗口。

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2 回答 2

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KeyStroke.getKeyStroke(int, int)不用于获取KeyStroke新闻或发布事件，它用于以和/或和/或和/或和/或...KeyStroke的形式将修饰符应用于KeyEvent.SHIFT_DOWN_MASKKeyEvent.CTRL_DOWN_MASKKeyEvent.ALT_DOWN_MASKKeyEvent.ALT_GRAPH_DOWN_MASKKeyEvent.META_DOWN_MASK

而不是getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_F10, KeyEvent.KEY_PRESSED), "none");你应该使用getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_F10, 0), "none");

当我使用以下内容时，我可以获得在字段聚焦时触发的关键动作......

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import javax.swing.AbstractAction;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

public class TestTextFieldKeyStroke {

    public static void main(String[] args) {
        new TestTextFieldKeyStroke();
    }

    public TestTextFieldKeyStroke() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
                }

                JFrame frame = new JFrame("Testing");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.setLayout(new BorderLayout());
                frame.add(new TestPane());
                frame.pack();
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);
            }
        });
    }

    public class TestPane extends JPanel {

        public TestPane() {
            JTextField field = new JTextField(20);
            add(field);
            JPopupMenu pop = new JPopupMenu();

            field.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_F10, 0), "happy");
            field.getActionMap().put("happy", new AbstractAction() {
                @Override
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Happy");
                }
            });

        }
    }
}

更新了弹出窗口

根据前面的示例，如果我执行类似...

final JTextField field = new JTextField(20);
add(field);
JPopupMenu pop = new JPopupMenu();
pop.add(new JLabel("Hello"));
field.setComponentPopupMenu(pop);

field.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_F10, 0), "happy");
field.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_F10, KeyEvent.CTRL_DOWN_MASK), "happy");
field.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_F10, KeyEvent.ALT_DOWN_MASK), "happy");
field.getActionMap().put("happy", new AbstractAction() {
    @Override
    public void actionPerformed(ActionEvent e) {
        JPopupMenu popup = field.getComponentPopupMenu();
        popup.show(field, 0, field.getHeight());
    }
});

我可以让它显示JPopupMenu

在此处输入图像描述

于 2013-09-06T00:45:54.977 回答
-1

我已经尝试过了，它正在工作：

getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_F10, 0), "doNothing");
getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_F10, KeyEvent.SHIFT_DOWN_MASK), "doNothing");
getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_F10, KeyEvent.CTRL_DOWN_MASK), "doNothing");

        getActionMap().put("doNothing", new AbstractAction() {
            @Override
            public void actionPerformed(ActionEvent e) {
                //Do nothing
            }
        });

现在F10，删除了Shift+F10和Ctrl+F10事件。但是，如果我跳过getActionMap().put("doNothing", new AbstractAction() {})，则上面的键绑定不起作用..，但似乎在某处仍附加了某些操作-当我按下这些按钮时，光标正在更改（从Cursor.TEXT_CURSOR到Cursor.MOVE_CURSOR再回到Cursor.TEXT_CURSOR）（应该什么都不做）。我试过textField.getActionMap().size()了，但它返回 0。所以我想动作附加到其他一些组件。有可能找出来吗？

编辑：

在这里http://docs.oracle.com/javase/...我找到了所有的答案... :)

于 2013-09-06T05:31:55.957 回答