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What Are the Responsibilities of a View Controller

If you are familiar with the Model-View-Controller pattern, then you know that it splits an application up into three components or layers, the view layer, the model layer, and the controller layer.

in Model-View-ViewModel

Six Swift Projects You Should Know About

Swift is becoming more popular by the day and new initiatives pop up left and right. In this article, I list six projects I stumbled upon in my never-ending search for audacious initiatives.

in Tips and Tricks

How Badly Do You Want It

It isn't easy for inexperienced developers to find an attractive job without years of experience or an impressive portfolio. That shouldn't be an excuse, though. It has never been easier for developers to build a portfolio, gaining experience along the way. In this article, I show a few examples of how you can build a portfolio and gain experience to help you find clients or impress your future employer.

in Opinion

Give It Time

Building The Perfect Core Data Stack

The Core Data stack we have built in this series has grown quite a bit in complexity. But if you have a good grasp of the framework, it isn't rocket science. In this lesson, we add the last piece of the puzzle. You can follow along by downloading the repository from GitHub.

in Core Data

What Does an Exclamation Mark Mean in Swift

Developers new to Swift are often confused by the seemingly random sprinkling of question and exclamation marks in Swift code. Yesterday, we discussed the meaning of the question mark. Today, I would like to zoom in on the meaning of the exclamation mark in Swift.

in Swift

What Is an Optional in Swift

Even though Swift is easy to get started with, developers new to the language need to learn several brand new concepts. The most common hurdle developers run into is understanding optionals. What are they? And how should you deal with optionals?

in Swift

How to Use Autoclosures and @autoclosure in Swift 3

Even though you may not know what an autoclosure is, I bet you have already used autoclosures without knowing it. Last week, we looked at the fatalError(_:file:line:) function. What I didn't show you is the function declaration. This is what it looks like in Swift 3.

in Swift

How to Add Sticky Section Headers to a Collection View

Even though UICollectionView is incredibly flexible and versatile, trivial things are sometimes difficult to accomplish. UITableView, on the other hand, has more configuration options, but it is harder to customize. Sticky section headers, for example, are built into table views. Adding them to a collection view requires a bit of extra work.

in UIKit

Motivation Will Get You Only Halfway

As a developer, chances are that you have started more projects than you can remember. But how many of those projects have you finished? How many applications did end up in the hands of customers?

in Opinion

What Is Fatalerror In Swift And When To Use It

Even though the signature of the fatalError(_:file:line) function looks a bit daunting, it is surprisingly easy to use. In this tutorial, I show you how to use fatal errors and, more important, why you'd want to use fatal errors.

in Swift

Reverse Geocoding With CLGeocoder

Forward and Reverse Geocoding With CLGeocoder

In the previous tutorial, we explored forward geocoding with the CLGeocoder class, a member of the Core Location framework. This tutorial zooms in on reverse geocoding, another capability of the CLGeocoder class.

in Core Location

Forward Geocoding With CLGeocoder

Forward and Reverse Geocoding With CLGeocoder

The CLGeocoder class is part of the Core Location framework and it has been around since iOS 5 and macOS 10.8. Initially, the functionality of the CLGeocoder class was limited to reverse geocoding addresses into coordinates. Since iOS 8 and macOS 10.10, however, it is also possible to fetch the coordinates of addresses. In this tutorial, you learn how to do both using Xcode 9 and Swift 3.

in Core Location