Make App Pie
Training and Instructional Design
Tag: errors
Launch an Alert from a Closure Safely
Your app can get into problems when you launch UI from others threads, such as closures. For example, you might have an app that going to ask for permissions for things like photos, notifications, or location data. The system usually handles those, but you…
Understand ARC
One of those difficult things for even experienced developers to understand is Automatic Reference Counting, or ARC. It is how Swift manages and conserves memory automatically. Take a look at the Exercise file. I have a playground in this project with two classes. One…
Thrown Errors
There’s many ways to handle errors in Swift. For some errors, using throws is a great way to handle errors without crashing the system. Download the exercise file. You’ll find a project with an embedded playground. While there’s a lot better ways to do…
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Current Published Works
Pratical Autolayout
for Xcode 8
In Practical Auto Layout for Xcode 8, using simple, practical, easy to follow examples, you will learn how to master auto layout, size classes and stack views on the Xcode 8 storyboard. Using easy to follow examples, you will learn how to make universal apps quickly easily and in far less time than ever before.
Swift Swift:
View Controllers
You will learn to use auto layout, size classes and new Swift implementations of view controllers. With plenty of color illustrations and code snippets, Swift Swift View Controllers will take you step by step through many easy demonstrations, teaching you the stuff you really need to know to implement any of these view controllers.
Available on
