Storing Codable structs on the disk

Most of our apps are REST clients for some backends. During the development of this kind of apps, we want to keep it working offline. In this case, we have to cache data somewhere locally on the device to make it readable without an internet connection.

Haptic feedback in iOS apps

Feedback helps people know what an app is doing, discover what they can do next, and understand the results of actions. This week I am going to talk about the Haptic Feedback Engine which provided by Apple in most of the devices.

Extracting presentation logic to make it testable

Last week we touched the entirely new topic on my blog. This week we will continue the Unit Testing subject. One of the smells of a good architecture is the ability to cover it with Unit Tests. Today we will talk about extracting Presentation logic into testable and straightforward pieces of code.

Starting Unit Testing with Model layer

Today we are going to touch the completely new topic on my blog, and it is Unit Testing. Most of us heard about the pros of Unit Testing. I want to show how easily you can start with Unit Testing by covering your model layer. So let’s start with the definition.

Inclusive enums with OptionSet

Enums are one of the most powerful features of Swift language. It forms Value-Oriented Programming in conjunction with Structs. Enum is the best way to describe the exclusive state in Swift, but what about the case when you need an inclusive state. Today we will talk about OptionSet protocol and how we can achieve inclusive states with it.

Adapting app for iPad with UISplitViewController

Apple promotes iPad as the primary computer for regular users. This trend is visible during the last couple of years. More and more users start to use iPad as the main device. I think it is essential to support iPad screens and efficiently use that space. This week we will talk about adapting apps for iPad with the help of UISplitViewController.

Animating changes in UITableView and UICollectionView

Most of our apps present lists or grids of some data by using UITableView or UICollectionView. Often users can update this list by using Pull-to-Refresh technique or by pressing the update button. Everybody knows how to update UITableView by calling the reloadData method on the tableView instance. But what about animation? ReloadData method is invalidating the current items provided by data source and draws new ones without any animation. Today we will talk about animating data changes in UITableView and UICollectionView.

Dependency Injection in Swift with Protocols

There are a lot of third-party libraries which provide Dependency Injection for Swift apps. In my opinion, Swift has a powerful type system which gives us the ability to make type-safe Dependency Injection easily. Today we will talk about using Dependency Injection in Swift with the power of protocols.