first Thanks a lot.
My second question is that I want to show some images of one directory to the webview, because I can show a image to the webview ,but some images ? How to do ? by the way , I want to click a button and to open the homeDirectory and choose a directory , some images within it will show in the webview, how to do? I found a similar sample, the path is :/developer/examples/webkit/picturebrowser. but it is hard . I want to a simple demo or code ,how to do?