I wanted to note that it IS possible to communicate FROM the javascript on an html page back to cocoa using the UIWebView protocol: shouldStartLoadWithRequest. Works great as long as you don’t try to do too much with it.

The BIG win with having your detailed pages be rendered with a UIWebView is that standard tools, such as DreamWeaver, can be used to create the pages and fully trick it out. I have a test page, sized to emulate iPhone and iPad to see exactly what they look like within the device.

The artists and designers can then change everything to their hearts’ contents.

somewhere in the comments, there is a guy calling a function via stringbyevaluatingjavascript string, then having the js in the page call a url scheme myscheme://{… json data …} to return the data.

I initially had the same problem, but I discovered that this works :

NSString *js =@{(function(){\
var obj = doComplicatedThing();
return JSON.encode(obj);
})();};
NSString * output = [webView stringByEvaluatingJavascriptString:js];

and output DOES contain the json return value!!

the trick here is that you need to wrap the js function in a closure
“(function(){return something})();”