How to refer a local image file from UIWebView's HTML on iPhone?

Question

I would like to use <img src="temp.jpg" /> in my UIWebView's HTML.
How can I refer to a local file named temp.jpg to save precious loading time?

Of course the obvious choice would be <img src=".\temp.jpg" /> but I have no idea where my root is...

Answer 1

NSURL *url=[[NSBundle mainBundle] bundleURL];
[webView loadHTMLString:string baseURL:url];

This let's the root be the app's main bundle.