这是我的代码:
String s = "/Applications/Asphalt6.app";
JFileChooser chooser = new JFileChooser();
File file = new File(s);
Icon icon = chooser.getIcon(file);
// show the icon
JLabel ficon = new JLabel(s, icon, SwingConstants.LEFT);
现在,从图标中提取的图像真的很小。如何调整它的大小?
最佳答案
import java.awt.*;
import java.awt.image.*;
import javax.swing.*;
import java.io.*;
class BigIcon {
public static void main(String[] args) {
JFileChooser chooser = new JFileChooser();
File f = new File("BigIcon.java");
Icon icon = chooser.getIcon(f);
int scale = 4;
BufferedImage bi = new BufferedImage(
scale*icon.getIconWidth(),
scale*icon.getIconHeight(),
BufferedImage.TYPE_INT_ARGB);
Graphics2D g = bi.createGraphics();
g.scale(scale,scale);
icon.paintIcon(null,g,0,0);
g.dispose();
JOptionPane.showMessageDialog(
null,
new JLabel(new ImageIcon(bi)));
}
}
关于java - 如何在 JLabel 中调整图像/图标图像的大小?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7198903/