Screencasts for Professional Developers - iOS, Android and more | The Frontier by Big Nerd Ranch

ios

Generational Analysis with the Allocations Instrument

9 minutes

Generational Analysis with the Allocations Instrument can be used to track down memory growth issues. We're going to be tracking down a memory management issue that caught us here at Big Nerd Ranch by surprise, and we'll show you what we did to solve it.

#iOS #Xcode #macOS #Productivity #Debugging
ios

Handling Async Results

5 minutes

Throwing errors and completion handlers have pros and cons, and can’t be used in all situations. Here we examine some strategies for writing elegant async error-handling code with closures and associated-value enumerations.

#iOS #Swift #macOS #API #Multithreading #Concurrency
ios

Xcode Inline Documentation

10 minutes

In this screencast, you'll earn how to document your Swift code using Xcode’s Markup support, and Jazzy to create an informative API.

#iOS #macOS #Swift #tvOS #Xcode #Documentation #Jazzy #watchOS
ios

Using Generics in Swift

10 minutes

Generics allows for easy code reuse helping you write less code with fewer mistakes. In this video, we’ll learn how and when to use generics in your Swift apps by illustrating examples of problems that generics helps solve and we’ll build a simple, generic data structure.

#iOS #Swift #Xcode #Generics
ios

Adopting Configuration Settings Files in Xcode

11 minutes

In this screencast, we will explore how to use Xcode’s Configuration Settings Files - or xcconfig files - and improve our ability to tame the complexity of managing project settings.

#iOS #Swift #Xcode #tvOS #macOS
ios

Unit Testing: What, Why, and How

11 minutes

Whether you’ve never written a unit test, or are just looking for a way to add unit tests to some existing troublesome code, this video will walk you through the fundamentals of unit testing on iOS with realistic example code to help you learn how to write valuable and effective tests.

#iOS #Testing

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