Swift provides powerful tools for comparing and equating custom objects using the Comparable and Equatable protocols. In this tutorial, we will explore how to use the Comparable protocol to compare custom objects based on their properties, and the Equatable protocol to determine whether two objects are equal. By the end of this tutorial, you will…
Read More Comparable Protocol: How to Compare Custom ObjectsIn this tutorial, you will learn how to implement the Singleton design pattern in Swift. Introduction to Singleton Design Pattern The Singleton design pattern guarantees that only one object of a class will exist in a system. This is done in Swift by creating a class with a private initializer. The private initializer ensures that…
Read More Singleton Class in SwiftIn this tutorial, you will learn how to create a new class in Swift. After learning the basics of creating classes in Swift, you can dive deeper and learn how to implement a Singleton pattern in Swift, and create a class that has only one instance throughout your project. Alright, so let’s begin by declaring…
Read More Create a New Class in SwiftIn this quick Swift tutorial, I wanted to share how to convert a Data object into String. This is very helpful when you want to print out in Xcode console the response string returned in the body of the HTTP response. This is of course if you know the HTTP response body contains a JSON/text/XML…
Read More Convert Data to String in SwiftIn this tutorial, you will learn how to create UISlider in Swift programmatically. UISlider is a UI control that is used to select a single value from a continuous range of values. Below is an image of UISlider control. Create UISlider Programmatically To create UISlider control programmatically, you need to create a new instance of…
Read More Create UISlider in Swift ProgrammaticallyIn this tutorial, you will learn how to create a UIStepper in Swift programmatically. UIStepper is a control that is used to increment or decrement a numeric value and in this tutorial, you will learn how to create and control its behavior. You will learn how to: Call a custom function when UIStepper value changes, Make…
Read More UIStepper in Swift ProgrammaticallyIn this tutorial, you will learn how to add days, months or years to the current date in Swift. To work with dates I will use Date(), DateComponents() and Calendar objects. I will first get the today’s current date and then will use the DateComponents() to add to a current date another day, month or…
Read More Add Days, Months, Years to Current Date in SwiftIn this Swift tutorial, you will learn how to encode UIImage data to Base64 string. To verify that the UIImage data was correctly encoded into the Base64 string, we will decode the Base64 string back into image data and will create a new UIImage using this data. Create UIImage Before I can encode existing image…
Read More UIImage Base64 Encoding and Decoding in SwiftIn this Swift tutorial, you will learn how to make UIImageView corners rounded. To learn how to programmatically create new UIImage, add it to UIImageView and make it visible in your app, have a look at the following tutorial: Create UIImage and UIImageView Programmatically Create UIImage and UIImageView To make image corners rounded, I will…
Read More UIImageView Rounded Corners in SwiftIn this tutorial, you will learn how to create UIImage and UIImageView in Swift programmatically. Add Image to Xcode Project For your app to be able to display an image, the image needs to be either added to your app bundle or loaded from the Internet using an image URL. For this tutorial, I will…
Read More Create UIImage and UIImageView ProgrammaticallyIn this tutorial, you will learn how to create, schedule and handle local alert Notifications using the UNUserNotificationCenter in Swift. Local Notification vs Push Notification One of the main differences between Local notification and a Push notification is that local notifications are created, scheduled and are sent from a user iOS device. Push notifications are…
Read More Local User Notifications with UNUserNotificationCenterIn this tutorial, you will learn how to make UILabel automatically adjust its width to make the text fit. When the text on UILabel is longer than the width of the UILabel it does not fit. Below is an example of a UILabel with a text that does not fit. When Text Does Not Fit…
Read More Make UILabel Adjust Width to Fit TextIn this XCTest tutorial, you will learn how to write a unit test that will test if UIButton is connected to @IBOutlet and has @IBAction assigned. For this tutorial, I will create a Single View application project. I will use the default View Controller that XCode creates for all new projects and I will position…
Read More XCTest. Test if UIButton is Connected And Has ActionIn this tutorial, you will learn how to build and run Xcode Unit Tests from the command line. Command Line Tools Package for Xcode To be able to build and test your project using the terminal window you will need to have the Command Line Tools package installed on your machine. If the machine you…
Read More Run Xcode Unit Tests From The Command LineWhen writing code we come up with method or function names all the time. And it is pretty much up to us developers how to name our methods. When writing Unit Tests in Xcode there are a few little requirements for a test method name which we must follow if we want our test method…
Read More Naming iOS Unit Test Methods