我尝试了以下代码：
RootPanel root = RootPanel.get("root");
root.clear();
final FlowPanel p = new FlowPanel();
root.add(p);
for (int i=0; i<20; ++i) {
String url = "/thumb/"+i;
final Image img = new Image(url);
img.addLoadHandler(new LoadHandler() {
@Override
public void onLoad(LoadEvent event) {
p.add(img);
}
});
Image.prefetch(url);
但它对我来说并不奏效我错过了什么吗？
