An enum schema for a color parameter.
To make your app's parameter types available to Apple Intelligence,
conform your ``AppEnum`` to a schema that describes a parameter's possible values to the system.
If your app's functionality aligns with the `whiteboard` domain
and a parameter type matches the `color` schema,
you can generate the protocol conformance the schema requires
for your app enum implementation
with the `@AppEnum( .whiteboard.color)` Swift macro.
To make your app work with Siri,
see <doc://com.apple.documentation/documentation/appintents/apple-intelligence-and-siri-ai>.
The following example shows an app enum that conforms to the `color` schema:
```swift
@AppEnum(schema: .whiteboard.color)
enum CanvasColor: String {
case <#CanvasColor Case#>
static let caseDisplayRepresentations: [Self: DisplayRepresentation] = [
<#DisplayRepresentations#>
]
}
```
The schema supports the following system experiences:
- Shortcuts
For more information about the App Intents framework and the experiences it supports,
see <doc://com.apple.documentation/documentation/appintents/getting-started-with-the-app-intents-framework>.
get · iOS 18.0+
itemType
Swift declaration
var itemType: some AppSchemaEnum { get }
An enum schema for an item type parameter.
To make your app's parameter types available to Apple Intelligence,
conform your ``AppEnum`` to a schema that describes a parameter's possible values to the system.
If your app's functionality aligns with the `whiteboard` domain
and a parameter type matches the `itemType` schema,
you can generate the protocol conformance the schema requires
for your app enum implementation
with the `@AppEnum( .whiteboard.itemType)` Swift macro.
To make your app work with Siri,
see <doc://com.apple.documentation/documentation/appintents/apple-intelligence-and-siri-ai>.
The following example shows an app enum that conforms to the `itemType` schema:
```swift
@AppEnum(schema: .whiteboard.itemType)
enum CanvasItemType: String {
case <#CanvasItemType Case#>
static let caseDisplayRepresentations: [Self: DisplayRepresentation] = [
<#DisplayRepresentations#>
]
}
```
The schema supports the following system experiences:
- Shortcuts
For more information about the App Intents framework and the experiences it supports,
see <doc://com.apple.documentation/documentation/appintents/getting-started-with-the-app-intents-framework>.
