The Swift programming language is the standard features rich language to create iOS apps, iPadOS apps and MacOS X apps. The present and the future is just Swift on Apple ecosystem. Apple is perfecting Swift every year with updates and new features and capabilities. We are now in the era of SwiftUI, you should go for Swift already. Swift itself is a robust programming language. So go for it! it is standard for hiring, learning, creating apps for Apple operating systems.
Step by step guide to create background color changing with beautiful animation open Main.storyboard add a button as shown below add one @IBAction for touchUpInside of ‘Change Background’ button. Name the function as changeBackgroundClicked. use animate function of UIView to animate the change of background color. It provides us the duration and optional completion as parameters. In changeBackgroundClicked we will change the background color of the view from red to blue and vice versa.