How to cache content in UIWebView for faster loading later on?

Question

I notice that the iphone safari caches content so that your page load for later is much faster much like a desktop browser. So take mobile gmail web page for example, the fi

Answer 1

I've done a couple of apps that cache pages to the Documents folder, then compare the time-stamps of the cached & web pages before loading the new web page. So the basic flow is:

if (fileIsInCache)
    if (cacheFileDate > webFileDate)
        getCachedFile
    else
        getFileFromWeb
        saveFileToCache
else
    getFileFromWeb
    saveFileToCache

stuffFileIntoUIView

maybeReduceCache

You still have to hit the web to get the headers, but that's typically much faster than downloading a whole page/image/file.