我有一个带有文本“输入鼠标”的JLabel。只要用户在它上面输入鼠标,我想要出现一个JTextField,以便用户可以搜索一些东西。如果鼠标被移除,则以前的JLabel必须再次出现。我使用:JLabel - 鼠标输入到JTextField的更改
import java.awt.CardLayout;
import java.awt.GridLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
public class ML extends JFrame {
private static final long serialVersionUID = 1L;
public ML() {
GridLayout gl = new GridLayout(1, 2);
setLayout(gl);
JPanel jp = new JPanel();
CardLayout cl = new CardLayout();
jp.setLayout(cl);
JPanel jp1 = new JPanel();
JLabel jl = new JLabel("Enter mouse!");
jp1.add(jl);
JPanel jp2 = new JPanel();
JTextField jtf = new JTextField(20);
jp2.add(jtf);
jp.add(jp1, "1");
jp.add(jp2, "2");
cl.show(jp, "1");
jp.addMouseListener(new MouseAdapter()
{
public void mouseEntered(MouseEvent evt)
{
cl.show(jp, "2");
}
public void mouseExited(MouseEvent evt)
{
cl.show(jp, "1");
}
});
add(jp);
this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
this.pack();
this.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new ML();
}
});
}}
一切工作就好了,但是当我将鼠标悬停在一个JLabel“进入鼠标”,它有点错误/这和JTextField中之间闪烁。为什么是这样,我能做些什么来解决它? Ty
我会用,用真/假以JTextField.setEnabled而不是CardLayout – mKorbel