我正在开发一个项目,我想在按钮上设置助记符。但问题是助记符适用于配对键示例(Alt+F)等。但我希望它在单个键上。
最佳答案
看看 KeyBindings,
然后您可以将任意键附加到 JButton
这里有一个示例代码可以为您提供帮助,只需按键盘上的 C 即可:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.Action;
public class ButtonExample
{
private JFrame frame;
private JButton button;
private void displayGUI()
{
frame = new JFrame("Button Mnemonic Example");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel contentPane = new JPanel();
Action buttonAction = new ButtonAction("CLICK ME"
, "This is a Click Me JButton");
button = new JButton(buttonAction);
button.getInputMap().put(KeyStroke.getKeyStroke('c'), "Click Me Button");
button.getActionMap().put("Click Me Button", buttonAction);
contentPane.add(button);
frame.setContentPane(contentPane);
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
}
class ButtonAction extends AbstractAction
{
public ButtonAction(String text, String desc)
{
super(text);
putValue(SHORT_DESCRIPTION, desc);
}
@Override
public void actionPerformed(ActionEvent ae)
{
JOptionPane.showMessageDialog(frame, "BINGO, you SAW me.");
}
}
public static void main(String... args)
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
new ButtonExample().displayGUI();
}
});
}
}
关于java - 如何在Java中的按钮中设置单键助记符?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56611701/