将 JAR 文件中的动画 gif 加载到 ImageIcon [英] Loading animated gif from JAR file into ImageIcon
问题描述
我正在尝试从存储在 jar 文件中的动画 gif 创建一个 ImageIcon.
I'm trying to create a ImageIcon from a animated gif stored in a jar file.
ImageIcon imageIcon = new ImageIcon(ImageIO.read(MyClass.class.getClassLoader().getResourceAsStream("animated.gif")));
图像已加载,但仅加载了动画 gif 的第一帧.动画不播放.
The image loads, but only the first frame of the animated gif. The animation does not play.
如果我从文件系统上的文件加载动画 gif,一切都会按预期进行.动画播放所有帧.所以这是有效的:
If I load the animated gif from a file on the filesystem, everything works as expected. The animation plays through all the of frames. So this works:
ImageIcon imageIcon = new ImageIcon("/path/on/filesystem/animated.gif");
如何将 gif 动画从 jar 文件加载到 ImageIcon 中?
How can I load an animated gif into an ImageIcon from a jar file?
这是一个完整的测试用例,为什么不显示动画?
Here is a complete test case, why doesn't this display the animation?
import javax.imageio.ImageIO;
import javax.swing.*;
public class AnimationTest extends JFrame {
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
AnimationTest test = new AnimationTest();
test.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
test.setVisible(true);
}
});
}
public AnimationTest() {
super();
try {
JLabel label = new JLabel();
ImageIcon imageIcon = new ImageIcon(ImageIO.read(AnimationTest.class.getClassLoader().getResourceAsStream("animated.gif")));
label.setIcon(imageIcon);
imageIcon.setImageObserver(label);
add(label);
pack();
} catch (Exception e) {
e.printStackTrace();
}
}
}
推荐答案
这个从 inputStream 读取 gif 动画
This reads gif animation from inputStream
InputStream in = ...;
Image image = Toolkit.getDefaultToolkit().createImage(org.apache.commons.io.IOUtils.toByteArray(in));
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