我有白色图标,当我遇到该图标时,我想制作不同的颜色。
这是我的白色图标:
hint.setIcon(newjavax.swing.ImageIcon(getClass().getResource ("white.png")));
当您将鼠标拖到图标上以更改颜色时,我该怎么做?
我怀疑这个问题的答案是在一个未装饰的按钮中。将白色图像设置为图标,将黄色图像设置为翻转图标。像这样:
import java.awt.*;
import javax.swing.*;
import java.net.URL;
import javax.imageio.ImageIO;
class HoverImage {
HoverImage(Image img1, Image img2) {
JButton b = new JButton(new ImageIcon(img1));
b.setRolloverIcon(new ImageIcon(img2));
b.setBorderPainted(false);
b.setContentAreaFilled(false);
JOptionPane.showMessageDialog(null, b);
}
public static void main(String[] args) throws Exception {
URL url1 = new URL("https://i.stack.imgur.com/XZ4V5.jpg");
URL url2 = new URL("https://i.stack.imgur.com/7bI1Y.jpg");
final Image img1 = ImageIO.read(url1);
final Image img2 = ImageIO.read(url2);
//Create the frame on the event dispatching thread
SwingUtilities.invokeLater(new Runnable(){
@Override
public void run() {
new HoverImage(img1, img2);
}
});
}
}