e558. 在Applet中多圖片互動顯示

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This is the simplest applet to animate an array of images. In practice, you should use double-buffering (which this example does not use) to eliminate flickering.

    import java.applet.*;    import java.awt.*;        public class AnimApplet extends Applet implements Runnable {        Image[] images = new Image[2];        int frame = 0;        volatile Thread thread;            public void init() {            images[0] = getImage(getDocumentBase(), "http://hostname/image0.gif");            images[1] = getImage(getDocumentBase(), "http://hostname/image1.gif");        }        public void start() {            (thread = new Thread(this)).start();        }        public void stop() {            thread = null;        }        public void paint(Graphics g) {            g.drawImage(images[frame], 0, 0, this);        }        public void run() {            int delay = 1000;    // 1 second            try {                while (thread == Thread.currentThread()) {                    frame = (frame+1)%images.length;                    repaint();                    Thread.sleep(delay);                }            } catch (Exception e) {            }        }    }

 

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e558. 在Applet中多圖片互動顯示