As applications are developed you will often need to add additional fields to your database. The architecture component Room achieves this by using Migrations. In this screencast, you will learn how to test your database migrations so you can be confident that your apps data is maintained in a clean state.
In this screencast, we'll learn how to take a Java class converted to Kotlin using the conversion tool built in Android Studio, and apply some better null safety to the code learning about null safety along the way.
Firebase Cloud Storage provides an easy way to store files remotely and fetch them when needed. In this video learn the basics of the cloud storage api to upload, download, and delete files.
Analytics is crucial to seeing how your app actually gets used and determining the best path forward for new features and maintenance. In this screencast learn how to use Firebase Analytics in your application to send custom events on user actions.
There are a wide variety of test doubles you can use to make testing easier. In this video we will discuss mocks and spies, what their differences are and when you would use each of them.
Unit testing your classes helps ensure that they work correctly based on controlled inputs but doing the setup can be painful if you have a lot of dependencies. Learn how to create mock objects using Mockito to simplify your setup and improve the readability of your tests.
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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.
UIStackViews are a relatively new addition to UIKit, appearing with iOS 9. They are quite useful because they eliminate the need for many Auto Layout constraints in common screen designs, making them easier to modify and maintain.
As View Controllers become more complex, the need to manage the state of the view becomes more important. In this video we will discuss how to use a state machine to manage our views state.
Sometimes your app design calls for a control design that isn't provided in UIKit. In this video, we draw one from scratch!
When you have a complex view controller view, sometimes it is helpful to break up the view into manageable chunks. In this video we will show how you can use container views to simplify the construction of certain layouts. After this video you will know when and how to use these container views in your applications.
While Android SDK provides the APIs for using SQLite databases, they force developers to write a lot of boilerplate code. Room solves this problem by creating the glue code that saves objects to SQLite and reads them into memory. In addition, it performs some compile-time checks to ensure correctness of SQL queries.
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about 1 hour
In this skill pack we'll add test coverage to a full-stack messaging app called ChattrBox. We'll show you a few tools you can use for testing and demonstrate how to configure them to build a test suite that is scalable and provides meaningful feedback about an application.
Ready to dive into the exciting world of tvOS apps? In this skill pack, we'll cover a few examples while introducing you to some fundamentals of programming tvOS applications. By the end of this screencast you'll have the skills needed to start building your own tvOS apps.
In this skill pack, you will learn how to set up and use Sketch for creating color themes, palettes, symbols, and more.
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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.