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An apology to all Customers

Unfortunately it has come to our attention that with the latest Sandboxing restrictions in the Mac App Store, it is not possible to start and stop Launchd items with LaunchDControl. This is something that has been brought to our attention recently by a Customer and we...

Create your own Xcode code snippets

Using the Code Snippet Library from Xcode is very handy sometimes. However, the library consists only of a small amount of available code snippets. But you are not limited to them, rather than you can create your own code snippets for code patterns you are using very...

Swipe gestures on UITableView

User interactions on table cells don’t have to be necessarily restricted to simply scroll and tap them. However, with some additional code and the support of gesture recognizers introduced in iOS 3.2 you can give your users the possibility to swipe on your table view...

Objective C HMAC-MD5

Sometimes it is necessary to implement some cryptographic functions for security reasons within your iOS apps. In one of our projects I was faced with the problem of implementing some kind of a two-step registration/confirmation process with a iOS app and a...

PostgreSQL trivia

Sometimes it is necessary to use the psql command line tool to quickly explore odds in database. Often you also need to use some commands to view structure of your database or tables. In PostgreSQL (and also in other database systems) you can do that by querying...

UIDatePicker and UIPickerView

Sometimes it is necessary to adjust the color of the standard UIDatePicker  and UIPickerView  controls within your iOS application. Sadly the iOS SDK doesn’t support to change the background color or even the tint of these controls. A simple workaround for this is to...

Take a screenshot within iOS simulator

Whether you want to tweak your user interface or you want to take some promotional images of your iOS application, it is often really helpful to take a screenshot of your iOS application which is running on the iOS simulator.  It isn’t a big deal to take a screenshot...

iAd Integration

Advertisements are another option to provide your iOS applications still for free but also to get some cash back for your work. Although ads are not that popular to app users Apple made a big hit with their new iAd network. I’d like to call iAd the next level of...

iOS fade-in and fade-out Animation

Today just a small code snippet to create a nice fade-in-fade-out (or call it pulsating) effect on a given UIImage . To accomplish this within a UIView  you have to do only a few steps: Create a UIImageView  containing your image. Create the animation with its...

A infinite/endless paging UIScrollView

Infinity is a very powerful concept, so maybe my post title shouldn’t include this term. Anyway, I tried to create something similar to a infinite or endless paging scroll view. The idea is very simple: Create a view including a standard scroll view. Provide an...