### Basic UITextField Example (UIKit)

Source: https://developer.apple.com/design/human-interface-guidelines/text-fields

This is a basic example of how to use `UITextField` in UIKit. It shows how to create and configure a text field.

```swift
let textField = UITextField()
textField.placeholder = "Enter text here"
textField.borderStyle = .roundedRect
```

--------------------------------

### Basic NSTextField Example (AppKit)

Source: https://developer.apple.com/design/human-interface-guidelines/text-fields

This is a basic example of how to use `NSTextField` in AppKit. It shows how to create and configure a text field for macOS applications.

```swift
let textField = NSTextField(labelWithString: "Enter text:")
textField.stringValue = ""
textField.isBezeled = true
textField.bezelStyle = .roundedBezel
```

--------------------------------

### Basic Text Field with Placeholder

Source: https://developer.apple.com/design/human-interface-guidelines/text-fields

Demonstrates a basic text field with placeholder text to guide the user. The placeholder disappears when the user starts typing.

```swift
TextField("Email", text: $email)
```

--------------------------------

### Adjusting Layout with Keyboard Layout Guide (UIKit)

Source: https://developer.apple.com/design/human-interface-guidelines/virtual-keyboards

Use the keyboard layout guide to ensure your custom keyboard feels integrated and keeps important interface elements visible. This is crucial for iOS and iPadOS.

```swift
import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        let keyboardLayoutGuide = UILayoutGuide()
        view.addLayoutGuide(keyboardLayoutGuide)
        
        NSLayoutConstraint.activate([
            // Constrain the keyboardLayoutGuide to the bottom of the safe area
            keyboardLayoutGuide.leadingAnchor.constraint(equalTo: view.leadingAnchor),
            keyboardLayoutGuide.trailingAnchor.constraint(equalTo: view.trailingAnchor),
            keyboardLayoutGuide.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor)
            // You would typically constrain your keyboard content to the top of this guide
        ])
        
        // Example: Constraining a view to the top of the keyboard layout guide
        let myKeyboardView = UIView()
        myKeyboardView.backgroundColor = .lightGray
        myKeyboardView.translatesAutoresizingMaskIntoConstraints = false
        view.addSubview(myKeyboardView)
        
        NSLayoutConstraint.activate([
            myKeyboardView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
            myKeyboardView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
            myKeyboardView.bottomAnchor.constraint(equalTo: keyboardLayoutGuide.topAnchor),
            myKeyboardView.heightAnchor.constraint(equalToConstant: 200)
        ])
    }
}
```

--------------------------------

### Apply Padding to Widget Content

Source: https://developer.apple.com/design/human-interface-guidelines/widgets

Use standard margins for widgets to ensure legibility and avoid a cluttered appearance. This example shows how to apply padding.

```swift
struct MyWidgetEntryView : View {
    var entry: Provider.Entry

    var body: some View {
        VStack {
            Text(entry.date, style: .time)
        }
        .padding()
```

--------------------------------

### Preview Scene Activation Configuration

Source: https://developer.apple.com/design/human-interface-guidelines/windows

Use QLPreviewSceneActivationConfiguration when you only need to present a single file, supporting multiple windows in your app without requiring custom window creation.

```swift
class QLPreviewSceneActivationConfiguration {
    // Implementation details for preview scene activation configuration
}
```

--------------------------------

### Using ListStyle in SwiftUI

Source: https://developer.apple.com/design/human-interface-guidelines/lists-and-tables

Demonstrates how to apply different list styles in SwiftUI to adapt the appearance of lists based on platform conventions and data presentation needs.

```swift
List {
    // Content
}
.listStyle(.plain) // Or .grouped, .inset, .insetGrouped, etc.
```

--------------------------------

### Secure Text Field Example

Source: https://developer.apple.com/design/human-interface-guidelines/text-fields

Use secure text fields when your app asks for sensitive data, such as a password. This example demonstrates the basic usage of `SecureField` in SwiftUI.

```swift
SecureField("Password", text: $password)
```

--------------------------------

### Using `mixed` immersion style

Source: https://developer.apple.com/design/human-interface-guidelines/immersive-experiences

Prefer launching your app or game in the Shared Space or using the `mixed` immersion style. This allows users to reference your app while using other software and enables seamless switching.

```swift
WindowGroup {
    ContentView()
}
.windowStyle(.volumetric)
.supportedInteractions([.all])
.environment(\.mixedRealityImmersionStyle, .mixed)
```

--------------------------------

### Transition from Any Item to New Window

Source: https://developer.apple.com/design/human-interface-guidelines/windows

Utilize UIWindowScene.ActivationInteraction to allow users to open content from various items into a new window, supporting flexible multitasking and context preservation.

```swift
class UIWindowScene.ActivationInteraction {
    // Implementation details for scene activation interaction
}
```