Contributed Tutorials

Building a QR Code Generator with Core Image Filters

One of the first tutorials I contributed here at Appcoda was a guide about how to create a QR code reader in iOS. At that time of course, the code of that tutorial was written in Objective-C, as Swift wasn’t still existing. Later in time, my friend Simon wrote a new one, this time made…
Working with CloudKit in iOS 8

One of the greatest tasks that developers have to perform, is to find and implement a proper way to store the application data. Undoubtably, there’s no application in any platform that doesn’t need to save some kind of data at some point. Depending on the nature of the application usually, the amount of data that…
A Swift Tutorial for Google Maps SDK

Working with maps in iOS consists of an entire programming chapter, as there are tons of things that a developer can do with them. From just presenting a location on a map to drawing a journey’s route with intermediate positions, or even exploiting a map’s possibilities in a completely different way, dealing with all these…
Developing iBeacons Apps with Swift

Since the introduction of iBeacons with iOS 7 by Apple, a lot of things have been said and written about. iBeacon technology consist of a revolutionary way to keep track of the position of a device indoors and use location services, similarly to the GPS outdoors, and it’s based on the signal transmitted through Bluetooth…
Xcode 6 Tips: Vector Images, Code Snippets and Many More

As a developer, no matter whether your are a professional one, or you are just doing programming for fun, it’s definite that you are going to spend endless hours in front of your monitor until your project is ready. Feeling comfortable with the programming tools you use is more than important, as they consist of…
Building a Text to Speech App Using AVSpeechSynthesizer

iOS is an operating system with many possibilities, allowing to create from really simple to super-advanced applications. There are times where applications have to be multi-featured, providing elegant solutions that exceed the limits of the common places, and lead to a superb user experience. Also, there are numerous technologies one could exploit, and in this…
Documenting Your Objective-C and Swift Code in Xcode with HeaderDoc and Doxygen

During the development of an application there are various steps involved in the whole process. Some of them are the definition of its specifications, the creation of graphics, the implementation, and the testing phase following the implementation. Writing the code maybe consists of the most important part, as this brings the application to life, but…
Building a Chat App in Swift Using Multipeer Connectivity Framework

When programming in iOS, there are certain aspects of the SDK that pull the developers’ attention and interest a lot more than others, and one of them is the Multipeer Connectivity framework. As you know, the MPC framework is not new in iOS 8, instead it was first-introduced in the seventh (7th) version of it,…
A Beginner’s Guide to Animated Custom Segues in iOS 8

When the fifth version of iOS (iOS 5) was released to the public, it introduced a brand new, revolutionary approach to the way the interface of an application was designed. That was the use of storyboards, and it was meant to change the existing designing philosophy from the ground up. Before iOS 5, each view…
Creating Interactive Local Notifications in iOS 8

Notifications are the way of an application to communicate with users, especially when it’s not running in the foreground. A notification, as its name implies, is used to *notify* a user either about an event, or just to remind something important. In fact, notifications are extremely useful in reminding applications, but they’re also quite handy…