我们可以使用 Java Swing 更改光标吗?
java 8object oriented programmingprogrammingswing
是的，我们可以更改 Java 中的默认光标表示。让我们首先创建一个按钮组件 −
JButton button = new JButton("Button with two borders");
每当用户将鼠标光标停留在上述按钮组件上时，光标就会变为手形光标 −
Cursor cursor = button.getCursor(); button.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
以下是更改光标的示例 −
示例
package my;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Cursor;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.border.Border;
import javax.swing.border.EtchedBorder;
import javax.swing.border.LineBorder;
import javax.swing.border.TitledBorder;
public class SwingDemo {
public static void main(String args[]) {
JFrame frame = new JFrame("Demo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Border raisedBorder = new EtchedBorder(EtchedBorder.RAISED);
LineBorder lineBorder = new LineBorder(Color.red);
TitledBorder titleBorder = new TitledBorder("Demo Title");
Border border = BorderFactory.createCompoundBorder(lineBorder, titleBorder);
JButton raisedButton = new JButton("Raised Border");
raisedButton.setBorder(raisedBorder);
JButton button = new JButton("Button with two borders");
button.setBorder(border);
Cursor cursor = button.getCursor();
button.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
Container contentPane = frame.getContentPane();
contentPane.add(raisedButton,BorderLayout.WEST);
contentPane.add(button,BorderLayout.EAST);
frame.setSize(600, 300);
frame.setVisible(true);
}
}
输出
输出如下。当你将光标放在带有两个边框的按钮上时，手形光标将可见，如下所示 −
