The Frontier by Big Nerd Ranch: Screencasts for Developers

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Here's some of the latest from the team at Big Nerd Ranch. View More →

web

Keyboard Navigation and VoiceOver

6 minutes

In this screencast, you'll get your feet wet in accessibility and learn how to move around a website using only your keyboard with VoiceOver enabled.

#Accessibility #VoiceOver
android

Android BiometricPrompt

10 minutes

As of Android P, the FingerprintManager is deprecated in favor of the BiometricPrompt API. In this screencast, we’ll quickly review a previous FingerprintManager implementation and then dive into setting up your application to use BiometricPrompt.

#Android #Fingerprint #Authentication #BiometricPrompt
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

Try a Sample

Here are a few sample screencsats to help you get started. View More →

ios

Protocol Oriented Dependency Injection

8 minutes

Tight coupling between view controllers in your application can lead to difficult maintenance as you add and remove features. This video will explore how using Protocols can make our Dependency Injection more loosely coupled. This improves the flexibility of the code and makes our application easier to change.

#Protocol Oriented Programming #iOS #Swift
ios

Drawing Custom Controls

6 minutes

Sometimes your app design calls for a control design that isn't provided in UIKit. In this video, we draw one from scratch!

#Design #iOS #Swift #Xcode #Drawing #Quartz
web

Rails APIs (Part 1) - Getting Past the CRUD

8 minutes

In this screencast, we'll show you how to create a web service for tracking todos and we'll continue to build on this application throughout the rest of the series.

#Ruby On Rails #Web Services

Keyboard Navigation and VoiceOver

Android BiometricPrompt

Generational Analysis with the Allocations Instrument

Handling Async Results

Xcode Inline Documentation

Using Generics in Swift

Protocol Oriented Dependency Injection

Drawing Custom Controls

Rails APIs (Part 1) - Getting Past the CRUD

Building Better Problem Solvers

Because solving the problem is more valuable than the code we write.

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web

android

ios

ios

ios

ios

Try a Sample

ios

ios

web