Swift Fundamentals book- 1.9: Interface Builder Basics
These are my lecture for University and College level students.
By default, a new iOS app project comes with one storyboard named Main.storyboard. Because Xcode doesn't show file extensions by default, it appears as Main in the Project navigator. Click it now to open the storyboard in Interface Builder. In the center of the screen, you'll see a single scene with a plain white view on an otherwise blank canvas. This scene is called the initial view controller, and it is the first screen that will appear when you open the app. As you add more scenes to the storyboard, you can drag them anywhere on the canvas. To see more view controllers at once, use two fingers on a Multi-Touch trackpad to pinch and zoom the canvas out or to zoom in on a particular view. If you don't have a trackpad, you can use the zoom buttons near the bottom of the canvas to achieve the same result.
Apple Education. “Develop in Swift Fundamentals.” Apple Inc. - Education, 2021. Apple Books. https://books.apple.com/us/book/devel...