How To Use Availability Checking In Swift

Swift includes a number of features Objective-C developers have wanted for years. Availability checking is one of those features.

in Swift

How To Run A Business In Apple's App Store

The early days of Apple's App Store are sometimes referred to as the gold rush. Paid applications were the norm and prices were much higher than they are now. What options do you have as a developer or entrepreneur in today's App Store? Is it possible to make a living as an independent mobile developer? In this article, I list the options you have to make money from your applications in Apple's App Store.

in Business

What Is The Difference Between Private And Fileprivate In Swift 3

When access levels were first introduced in Swift, there was some confusion and criticism about them. While developers were excited about the addition of access control to the Swift programming language, the behavior of the private keyword was different from that of other programming languages.

in Swift

More About Managing Permissions With Healthkit

Healthkit Fundamentals

In the previous installment of HealthKit Fundamentals, we discussed the sensitivity of health data and the limitations of the HealthKit APIs with respect to accessing the user's health data. Apple put these limitations in place to ensure developers respect the company's commitment to protecting the customer's privacy.

in HealthKit

Passing It Around

Building The Perfect Core Data Stack

The Core Data stack we have built in this series is slowly taking shape. With every iteration, we add a dash of complexity in return for a few key advantages.

in Core Data

Ten People Every Swift Developer Should Follow

There are many respected developers in the Swift and Cocoa communities. In this article, I list ten people that you should follow.

in Tips and Tricks

Managing Permissions With Healthkit

Healthkit Fundamentals

Getting started with HealthKit is not difficult as long as you are not intimidated by the slew of classes, methods, and constants the framework defines. Without a proper foundation, you may miss the forest for the trees.

in HealthKit

Keeping It Private

Building The Perfect Core Data Stack

Previously, we updated the Core Data stack by adding a private managed object context. Remember that the private managed object context performs two tasks. It pushes its changes to the persistent store coordinator. It acts as the parent of the main managed object context.

in Core Data

Two Is Better Than One

Building The Perfect Core Data Stack

Have you ever considered using more than one managed object context in a Core Data application? In this installment of Building the Perfect Core Data Stack, we explore the options you have and the benefits of a Core Data stack with multiple managed object contexts.

in Core Data

What Is Healthkit

Healthkit Fundamentals

In 2014, Apple introduced HealthKit alongside iOS 8. HealthKit is Apple's solution for storing, managing, and sharing health data. HealthKit enables developers to read and write health data to a database managed by the operating system.

in HealthKit

Embracing Optionals In Swift

Type safety is a fundamental concept of the Swift programming language and optionals neatly tie into Swift's strict type safety rules. The concept underlying optionals is simple, an optional has a value or it does not.

in Patterns

Bring Your Own

Building The Perfect Core Data Stack

In this series, we explore several techniques and best practices for building a robust, modern Core Data stack. Modern? Yes. Core Data has undergone several important changes in the past few years. In this series, we discuss what a modern Core Data stack looks like.

in Core Data