Cache initial webview page in iPhone app

My iPhone app has some tabs and main one is showing a webView object that connects to a specific URL and then download its content. However, all is working properly except when user downloads the app for first time through AppStore, then webView is empty because there is no cache data until device will have internet connection. In order to solve it, I would like 开发者_运维问答to create an initial file cache data for that webView. Possible? How? Thank you!

You can use this.