When writing code, we organize functionality into functions and group functions and different properties into classes. In Swift, additionally to creating classes we can also create structures or struct for short. Although very similar, Swift classes are different from swift structures. Comparing Structures and Classes According to Swift documentation, structures and classes in Swift have many…
Read More Swift Struct Tutorial with Code ExamplesIn this tutorial, I am going to share with you how to programmatically create a new UILabel that supports multiple lines. By default when you create a UILabel, the text you set on the label will go in one line and if the text is longer than the width of the label, it will be…
Read More UILabel with Multiple Lines Example in SwiftIn this tutorial, you will learn how to create UILabel programmatically using a specific height, width, and position as well as using an auto layout. To write Swift code I will use Xcode Playground and if you are interested to learn how to create a new Xcode Playgrounds project, have a look at this tutorial…
Read More Create UILabel Programmatically in SwiftIn this tutorial, you will learn how to work with functions in Swift. Create a New Function The below code example demonstrates how to create a very basic function in Swift. We will be adding more details to it but in code examples below but for now, let’s learn how to create a very simple…
Read More Swift Functions Tutorial with Code ExamplesIn this Swift tutorial, you will learn how to create a very simple Closure and how to pass it to a function as an argument. Swift Closure is a block of code starting with { and ending with }, is very similar to a function except that it does not start with a “func” keyword, it…
Read More Swift Closure Tutorial with Code ExamplesIn this tutorial, I will share how to generate a self-signed certificate and enable HTTPS/SSL support in a Spring Boot application. You will also learn how to configure the RestTemplate HTTP client to use the same self-signed certificate to communicate with your Web Service over HTTPS. Let’s start by generating a self-signed certificate. Generate Self-Signed…
Read More Enable HTTPs/SSL in Spring Boot AppIn this tutorial, I am going to share with you how to set the JAVA_HOME environment variable on a new macOS. The new way of setting JAVA_HOME environment variable allows us to dynamically identify and use the current Java version installed on a computer as well as let us switch between Java versions if there…
Read More How to Set JAVA_HOME on macOSIn this Spring Boot tutorial, you will learn how to get the details of the currently authenticated principal user. There is more than one way to get currently authenticated user details and in this blog post, I am going to share with you a few. Most likely you already have Spring Security configured for your…
Read More Spring Security. Get Authenticated Principal Details.In this tutorial, you will learn how to create a console-based Spring Boot application that you can run in the terminal window on your computer. You will also learn to pass command-line arguments to your Spring Boot console-based application. For more Spring Boot tutorials and video lessons check this page: Spring Boot tutorials and video lessons.…
Read More Spring Boot Console ApplicationMaven is a build automation tool that is primarily used for Java projects. It provides a set of conventions for building and managing projects, making it easier to manage dependencies, build processes, and project configurations. Maven automates many of the tedious tasks associated with building and managing Java projects, such as compiling source code, creating…
Read More How to Install Maven on Mac OSIn this tutorial, you will learn a few ways how to run your code when Spring Bean has initialized. There are other ways that are not mentioned in this tutorial, but the three mentioned here are my favourite. Using @PostConstruct One of the ways to run your code right after a Bean has been initialized…
Read More Run Code When Spring Bean Is InitializedIn this tutorial, you will learn how to send HTTP Post Request in Swift and how to read HTTP Response and Response Body. This tutorial will cover: Send HTTP Post Request, Convert Query String request parameters to JSON, Convert Swift structure to JSON, Set HTTP Request Headers, Read HTTP Response, Read HTTP Response Headers, Read HTTP…
Read More HTTP POST Request Example in SwiftIn this Swift tutorial, you will learn how to send HTTP GET Request in Swift. You will also learn how to set request parameters and HTTP request headers and how to read HTTP Response. To summarize, this tutorial will cover: Send HTTP Get Request, Set HTTP Request Headers, Read HTTP Response Status Code, Read HTTP…
Read More HTTP GET Request Example in SwiftIn this short tutorial, you will learn how to add Biometric Authentication to your iOS app built with Swift. iOS devices starting from iPhone 5S until iPhone 8 Plus will use Touch ID for biometric authentication, while devices starting from iPhone X and above will use Face ID for biometric authentication. Update Info.plist File To be…
Read More Touch ID or Face ID Authentication in SwiftIn this short tutorial, you will learn how to convert JSON string to a struct or a class in Swift. JSON String Let’s assume we have a web service endpoint which returns us a JSON string containing the following user details: {“firstName”:”Sergey”,”lastName”:”Kargopolov”,”email”:”[email protected]”,”userId”:”7fc0631b-7116-4d41-8d87-78f97b4dc543″} Swift Data Structure. Conforming to Codable or Encodable. We need to write Swift code…
Read More Convert JSON to Swift Class or Struct