When building an iOS application there are times when the best solution for a particular view or screen is to build it as a webpage and then embed it into the app using a UIWebView. There are certain things a webview can do really well that are otherwise hard to replicate, and while not as sexy, web development can be much quicker than native iOS development. The specifics of when to use a webview and when to go native I won’t dive into, but if you decide to use a webview, the first major question you’ll probably wonder is how to communicate between the native app and the webview. For full integration into the app, being able to send messages from the JavaScript to Objective-C and back is critical, and luckily it’s quite easy.

read on