How many lines of code do you have to write for displaying a webpage ‘in-app”. 3 methinks. Wouldn’t be great if there is a built in class for presenting a webpage using “presentModalViewController”? Meet MKWebViewController. Step 1: Drop the attached three files into your project and write the following three lines on your action callback (buttonDidTap) or equivalent methods MKWebViewController *controller...

Every programmer will one day realize that Git is easily the best available source code control on the planet. I was a fervent follower of SVN so far and even wrote SVN is the best source code control. The only reason that daunted me to use Git is to use the command line interface. But, if you master the command line, Git is all yours to command. Moreover, with tighter integration of XCode 4 and Git, I think it’s a great idea to...

iPadIf you are not Steve Ballmer, you must have realized by now that iPad development is going to be the next big thing for the computing ecosystem. There are several reasons for this. 3 years ago, when iPhone was launched, Apple targeted the so called “busy” users (no not me). Most of these users, use apps for “consuming” content rather than actively creating it. Usage statistics from pinchmedia and flurry, report...

Most users think, Mac UI is all about slick graphics and “cool” icons. Well, that might be true partially, but user interface design isn’t about photoshopping or designing cool looking icons. According to Jakob Nielsen, aesthetics is just one aspect of usability. There is much more to user friendly software than just the “cool factor” or great icons. Recently, I was using Microsoft’s Excel to edit a dozen...

What is Follow Cost? Follow Cost is a interesting and powerful statistic that helps you check the “cost” you would incur by “following” a person on twitter. This is a very useful statistic that I think every twitter client should adopt.  Tweetie for iPhone was the first to implement follow cost and I use this feature of tweetie to check whether a follower is “worth the pain” (as follow cost puts it). In...

In-App purchases is a great way for developers to upsell by giving away their app for free and then allow them to charge for features when users start using it. This freemium model has indeed worked very well for upselling your app in the AppStore. But unfortunately, there isn’t an Apple allowed way to allow reviewers to “download” your in-app purchases for free (like giving away promotional codes for your in-app...