The MVC-Trap

The fundamental software architecture pattern in iOS and Mac OS  development is the Model-View-Controller pattern (MVC). The idea of this pattern is, that each of these three layers has a clear and precise

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Loading a View from a XIB

Generally, there are two ways to layout views: building it in interface builder or by coding. Both ways have their applications, but in many cases the interface builder way is more comfortable. If you

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Container ViewController

Basically, there are two types of view controllers: Content view controllers and container view controllers. Container view controllers are used to manage some set of content view controllers and present

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Objective-C: Lightweight Generics

Since Xcode 7 there are so-called “Lightweight” Generics in Objective-C. The biggest benefit of this feature is a better interoperability between Objective-C and Swift.

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Singletons in Swift

Some people love it, some people hate it – but in the end everybody uses it: the singleton pattern. It is used if just one instance of an object is desired. For example, that could be a database

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Outsource your UITableViewDataSource!

It is very common that the controller of an UITableView is also its data source. This is the number one reason why view controllers tend to become very massive. Outsourcing the data source to an object

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One Year of Swift

One year ago Apple introduced Swift, which was a very surprising move.  What remains after one year?

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The 10 Best Xcode Shortcuts

Keyboard shortcuts can make your life better – or at least your workflow quicker. Here’s a list of the ten best ones:

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Swift 2.0: defer

defer is another new keyword in Swift. With this statement you can declare clean-up code, that is executed just before the current scope ends. For example, this scope can be a function or a loo...

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Swift 2: guard

In Swift 2, there is a new keyword for handling the control-flow of a block of code. It guarantees, that a specific condition holds true for the further code. Otherwise, it ensures that the following

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Properties in Swift

You are using properties all the time in Swift development. In this post you will learn all the basics.

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