Learn Swift and iOS Development
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9:53
What Is Reactive Programming
Building Reactive Applications With Combine
Combine is sometimes referred to as a functional reactive programming framework, but that isn't correct. It is more accurate to describe Combine as a reactive programming framework that uses functional programming techniques.
in Programming
2:50
Using didSet Property Observers to Configure Outlets
Tips and Tricks
I don't like long or complex viewDidLoad() methods. The viewDidLoad() method of a view controller should be short and easy to understand. The tip I am about to share with you helps declutter the viewDidLoad() method of the view controllers in your projects.
3:12
Introduction
Building Reactive Applications With Combine
Welcome to Building Reactive Applications With Combine. As the name suggests, this series zooms in on Apple's Combine framework. We cover the the ins and outs of the framework and you learn everything you need to know to make your projects reactive with the Combine framework.
in Programming
9:08
Testing and Mocking (Combine)
Mastering MVVM With Swift
It is time to unit test the AddLocationViewModel class. Create a new unit test case class in the Test Cases group of the CloudyTests target and name it AddLocationViewModelTests.swift.
8:28
Testing and Mocking (RxSwift)
Mastering MVVM With Swift
It is time to unit test the AddLocationViewModel class. Create a new unit test case class in the Test Cases group of the CloudyTests target and name it AddLocationViewModelTests.swift.
7:15
Protocol Oriented Programming and Dependency Injection (Combine)
Mastering MVVM With Swift
If we want to unit test the AddLocationViewModel class, we need the ability to stub the responses of the geocoding requests we make to Apple's location services. Only then can we write fast and reliable unit tests. Being in control of your environment is essential if your goal is creating a fast and robust test suite.
7:22
Protocol Oriented Programming and Dependency Injection (RxSwift)
Mastering MVVM With Swift
If we want to unit test the AddLocationViewModel class, we need the ability to stub the responses of the geocoding requests we make to Apple's location services. Only then can we write fast and reliable unit tests. Being in control of your environment is essential if your goal is creating a fast and robust test suite.
4:40
Refactoring the View Controller Using Combine
Mastering MVVM With Swift
We put the foundation in place in the previous episode by refactoring the AddLocationViewModel class. We complete the integration with the Combine framework in this episode by refactoring the AddLocationViewController class.
10:51
Refactoring the View Model Using Combine
Mastering MVVM With Swift
Before we integrate the Combine framework into the project, I want to briefly revisit the RxSwift and RxCocoa integration. RxSwift is a reactive extension for the Swift language and, as the name suggests, RxCocoa reactifies the Cocoa components you use day in day out.
8:10
Initial Values and Projected Values
Working With Property Wrappers
In the previous episode, you learned about the anatomy of property wrappers. Property wrappers aim to reduce code duplication and improve the readability of the code you write. They also implicitly document the code when implemented and applied correctly. That is an added bonus. In this episode, we explore a few additional features of property wrappers.
in Swift
3:51
Why Combine
Mastering MVVM With Swift
RxSwift has been around for many years, but it isn't the only option you have. In 2019, Apple introduced Combine, a system framework that brings reactive programming to Apple's platforms. The framework provides a declarative API for processing values of time.
8:19
Anatomy of a Property Wrapper
Working With Property Wrappers
Property wrappers were introduced in Swift 5.1 to eliminate boilerplate code, facilitate code reuse, and enable more expressive APIs. You may have noticed that SwiftUI and Combine make heavy use of property wrappers. Property wrappers are completely optional. You can write Swift without property wrappers. But once you become familiar with their benefits and understand how they work, you will understand why the Swift community is so excited about this addition to the language.
in Swift