Screencasts for Professional Developers - iOS, Android and more

All Screencasts

20 Screencasts

Looping Multiple Videos on AppleTV

11 minutes

The Apple TV can be setup as a Kiosk that plays a series of videos on a loop at a business or school location. In this video, we will use AVFoundation to allow the videos to play one after the other in an infinite loop.

Load Screens in React

5 minutes

Load screens provide a visual indicator to users that data is being fetched and a useful reminder that the app isn’t frozen. They also can prevent unwanted user interaction with your site. This screencast walks through building a simple load screen in React that will improve user experiences

Create a Looping Video Background

8 minutes

Having a video loop in the background of a menu screen is a great way to add visual interest to your application. In this screencast, we will explore the capabilities in AVFoundation for enabling this. After this video you will know about a new kind of video player, the queued player.

Xcode Configurations vs. Schemes

10 minutes

Targets and configurations and schemes; Oh my! Confused by these Xcode concepts? Curious how using multiple build configurations coupled with schemes can avoid the multiple-target mess? If you’re wondering what this all means and how it can make your developer life better, this video is for you.

Android NFC: Launch Activity

4 minutes

In the first screencast of this series we’ll cover the basics of NFC tags introducing NDEF and the Android tag dispatch system. We’ll look at how to add an intent-filter to the Manifest entry for a given Activity to enable that Activity to be launched when a matching tag is detected by the device.

Using Sections and Tags in Zeplin

4 minutes

In this screencast, we'll talk about the ways to use tags and sections to organize screens in Zeplin. By the end of this video, you'll be able to easily manage screens and other assets using the power of sections and tags.

Solving React Navigation State Problems with MobX

8 minutes

In this screencast, we’re going to look at some challenges you can run into passing props with React Navigation. We’ll use MobX to get our app working and make our state management even simpler in the process.

Kotlin and Android Lifecycles

6 minutes

What are some strategies for dealing with Kotlin and Android Lifecycles? In this screencast, cast you'll learn how Android Lifecycles appear to inhibit some core behaviors of Kotlin.

Swift Assertions

9 minutes

In this screencast, we’ll learn how to use Swift’s assertion function to code defensively. By the end of this video, you’ll be able to use the assertion functions to help you write stronger, more robust code.

Exporting Assets Directly From Zeplin

4 minutes

In this screencast, we’ll show you how to leverage Zeplin to export design assets for development. By the end of this video, you’ll be able to quickly and easily export design assets using Zeplin’s Asset Export Feature.

Optimizing Caching in React

7 minutes

In this screencast, we’ll look at how to speed up you React app by allowing browsers to cache your code as long as possible. By the end of the video you’ll be able to configure Webpack to minimize how often a user needs to re-download your JavaScript Bundles.

RecyclerView Efficient Reloading

6 minutes

In this video you will learn how to tell a RecyclerView Adapter that the underlying data has changed. You will also see the typical quick way of telling it to update, as well as a much more efficient implementation.

RecyclerView Multi-View

8 minutes

In this video you will learn how to configure a RecyclerView and its Adapter to display mutliple types of views in the list. You will determine which type of view needs to be displayed depending on the data, create the appropriate view holder, and bind the model data to it.

Lazy Loading Code in React

6 minutes

In this screencast, we're going to look at how to speed up your React app by lazily loading code. By the end of this video, you’ll be able to configure Webpack to let you defer loading code until it’s needed so that your initial page load is as fast as possible.

Creating a Color Theme from a Photo in Adobe Color

5 minutes

When it comes to picking out colors that match photos, it can be difficult to pick the perfect color to pair. In this screencast, we’ll show you how to use Adobe Color to pick colors for an Android card based on an image.

Importing Models into CoreML

9 minutes

Apple released Core ML framework at WWDC 2017, which allowed developers to integrate machine learning into their iOS applications. In this screencast, we’ll show you how to import Keras image classification models into CoreML

Espresso Test Recorder

10 minutes

Integration tests provide a way to verify the features in your application continue to work as you expect while adding new features and refactoring existing ones. In this screencast you will learn how to use the Espresso Test Recorder tool in Android Studio to add new integration tests to your test suite quickly and easily.

Linking Color Symbols to Components in Sketch

7 minutes

In this screencast, we will learn how to add color symbols to your UI components in Sketch. After this screencast, you will be able to link color symbols to UI components and change the colors of your application globally from a color palette.

Creating Color Palettes with Adobe Color

6 minutes

In this screencast, I will be showing you how to pick color palettes for your UI design. After this screencast, you will be able to pick a base color, understand the different color harmonies, pick color palettes with Adobe Color, and save them to your Sketch Document.

Idiomatic Swift with React Native (Part 2)

8 minutes

In part 1, we began simplifying our React Native native iOS code by separating an idiomatic Swift class from a React Native adapter. We’re going to finish this extraction by moving over a method that returns data. By the end of this screencast you should be comfortable with writing idiomatic Swift methods that return data synchronously or asynchronously, and adapting them to React Native.