Today Extensions Tutorial: Getting Started
Note from Ray: This is an abbreviated version of a chapter from iOS 8 by Tutorials released as part of the iOS 8 Feast to give you a sneak peek of what’s inside the book. We hope you enjoy! iOS 8 introduces a new concept called App Extensions: a way for you to share your app’s functionality with other apps, with to the OS itself. One of these types of extensions are Today Extensions, also known as
Cookbook: Using NSURLSession
Welcome to cooking with Chef Charlie! Tonight’s menu doesn’t include smoked trout; but it does include three recipes for working with NSURLSession. In this cookbook-style tutorial, you will learn how to download data, download an Image, and post data all using the NSURLSession suite of classes. Bon Apetit! What do you need? NSURLSession Some data or images to download A web service to POST data to
Swift 4 Cheat Sheet and Quick Reference
Download a handy 1-page PDF Swift Cheat Sheet and Quick Reference! By Ray Wenderlich. Sign up/Sign in With a free Kodeco account you can download source code, track your progress, bookmark, personalise your learner profile and more! Create account Already a member of Kodeco? Sign in Sign up/Sign in With a free Kodeco account you can download source code, track your progress, bookmark, personalise
MagicalRecord Tutorial for iOS
Update: This tutorial has been updated for iOS 8 and Swift here. This Objective-C version is no longer supported but is here for reference. For many years, Core Data has been an integral part of many OS X and iOS apps, supporting the persistence and querying of user data. Apple constantly tinkers with Core Data API, in an effort to make it easier for developers to use and integrate into apps. That
Scanner Tutorial for macOS
In these days of big data, data is stored in a multitude of formats, which poses a challenge to anyone trying to consolidate and make sense of it. If you’re lucky, the data will be in an organized, hierarchical format such as JSON, XML, or CSV. Otherwise, you might have to struggle with endless if/else cases. Either way, manually extracting data is no fun. Thankfully, Apple provides a set of tools
iOS UI Testing with KIF
Users expect a high level of polish from iOS apps, so it’s up to you to design, develop and test your apps to meet ever-rising expectations. Think about it for just a moment: How much time have you poured into conducting basic manual user interface testing? You know the drill…launching your app from Xcode, and incessantly tapping the same series of buttons to make sure no regressions slipped into
iOS 7 Best Practices; A Weather App Case Study: Part 1/2
Every developer has their own ideas as to the best way to create top-notch iOS apps. Some developers take advantage of Auto-Layout, some like to create all of their graphics in code, and some developers even like to code in Vim! With the recent release of iOS 7 and Xcode 5, I thought it would be a great time to provide a case study using a unique set of approaches and tools to create a basic weath
How To Synchronize Core Data with a Web Service – Part 1
This is a post by iOS Tutorial Team Member Chris Wagner, an enthusiast in software engineering always trying to stay ahead of the curve. You can also find him on Google+. A lot of apps that store their data in a remote database only work when an Internet connection is available. Think about Twitter or Facebook – without an Internet connection, they don’t do much! But it’s a much nicer (and faster)
Intro to Object-Oriented Design: Part 1/2
Update note: Check out the latest version of this tutorial, updated for iOS 8 and Swift! Intro to Object-Oriented Design in Swift. A huge piece of the programming puzzle in working with Cocoa and Objective-C is Object-Oriented Programming. Almost all modern programming languages use this approach, and wrapping your head around its concepts and patterns can be incredibly helpful when reading and wr
Beginning Auto Layout Tutorial in iOS 7: Part 1
Note from Ray: Tutorial Team member Matthijs Hollemans (the iOS Apprentice Series author) has ported this tutorial to iOS 7 as part of the iOS 7 feast. We hope you enjoy! Have you ever been frustrated trying to make your apps look good in both portrait and landscape orientation? Is making screen layouts that support both the iPhone and iPad driving you to the brink of madness? Despair no longer, I
Text Kit Tutorial
Update 9/30/14: This tutorial has now been updated for iOS 8 and Swift, check it out! Note from Ray: This is an abbreviated version of a chapter from iOS 7 by Tutorials that we are releasing as part of the iOS 7 Feast. We hope you enjoy! The way that text is rendered in iOS has changed a lot over the years as more powerful features and capabilities have been added. This latest iOS release brings w
Design Patterns on iOS using Swift – Part 1/2
iOS Design Patterns – you’ve probably heard the term, but do you know what it means? While most developers probably agree that design patterns are very important, there aren’t many articles on the subject and we developers sometimes don’t pay too much attention to design patterns while writing code. Design patterns are reusable solutions to common problems in software design. They’re templates des
UIKit Dynamics Tutorial
Note from Ray: This is an abbreviated version of a chapter from iOS 7 by Tutorials that we are releasing as part of the iOS 7 Feast. We hope you enjoy! Update note: Interested in Swift? Check out the version of this tutorial updated for Swift and iOS 8! You have probably come to realize that iOS 7 is something of a paradox; while you’re being encouraged to do away with real-world metaphors and ske
AFNetworking 2.0 Tutorial
Update 1/18/2014: Fully updated for iOS 7 and AFNetworking 2.0 (original post by Scott Sherwood, update by Joshua Greene). In iOS 7, Apple introduced NSURLSession as the new, preferred method of networking (as opposed to the older NSURLConnection API). Using this raw NSURLSession API is definitely a valid way to write your networking code – we even have a tutorial on that. However, there’s an alte
iOS App Security and Analysis: Part 2/2
In the first part of this tutorial, you focused on penetration testing. You mapped out an application using class-dump-z, explored security issues with its plists, modified the network interaction to purchase new and cheaper memes, and explored best practices for using the Keychain. Here in Part 2, you’ll dig deeper into the code to learn how to increase your iOS app security. You’ll alter functio
iOS Assembly Tutorial: Understanding ARM
When you write Objective-C code, it eventually turns into machine code – the raw 1s and 0s that the ARM CPU understands. In between Objective-C code and machine code, though, is the still human-readable assembly language. Understanding assembly gives you insight into your code for debugging and optimizing, helps you decipher the Objective-C runtime, and also satisfies that inner nerd curiosity. In
Overview of iOS Crash Reporting Tools: Part 1/2
Believe it or not, developers are not perfect, and every once in a while you might have a (gasp!) bug in your app. You will try your best to ship your apps with no bugs in them, but more often than not you realise afterwards that a bug has slipped through the net. Sometimes such bugs result in crashes, which no user likes to encounter. Never fear though, for there are many excellent iOS crash repo
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Core Bluetooth Tutorial for iOS: Heart Rate Monitor
Table View Animations Tutorial: Drop-In Cards
Storyboards vs NIBs vs Code: The Great Debate!