freeCodeCamp/guide/english/swift/view-controller/index.md

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---
title: View Controllers
---
## View Controllers
This is an example of what a basic view in Swift looks like.
```Swift
import UIKit
class ViewController: UIViewController {
// 1
override func viewDidLoad() {
// 2
super.viewDidLoad()
// 3
view.backgroundColor = .white
}
}
```
1. Loads view after the controller loads.
2. Overrides the UIViewController class. This is a necessary step for any view controller.
3. Sets background color to white.