An enum schema for a content 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 `books` domain
and a parameter type matches the `contentType` schema,
you can generate the protocol conformance the schema requires
for your app enum implementation
with the `@AppEnum( .books.contentType)` 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 `contentType` schema:
```swift
@AppEnum(schema: .books.contentType)
enum BookContentType: String {
case <#BookContentType 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+
relativeFontChange
Swift declaration
var relativeFontChange: some AppSchemaEnum { get }
An enum schema for a relative font change 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 `books` domain
and a parameter type matches the `relativeFontChange` schema,
you can generate the protocol conformance the schema requires
for your app enum implementation
with the `@AppEnum( .books.relativeFontChange)` 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 `relativeFontChange` schema:
```swift
@AppEnum(schema: .books.relativeFontChange)
enum BookRelativeFontChange: String {
case <#BookRelativeFontChange 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+
navigationDirection
Swift declaration
var navigationDirection: some AppSchemaEnum { get }
An enum schema for a navigation direction 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 `books` domain
and a parameter type matches the `navigationDirection` schema,
you can generate the protocol conformance the schema requires
for your app enum implementation
with the `@AppEnum( .books.navigationDirection)` 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 `navigationDirection` schema:
```swift
@AppEnum(schema: .books.navigationDirection)
enum BookNavigationDirection: String {
case <#BookNavigationDirection 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+
pageNavigationSetting
Swift declaration
var pageNavigationSetting: some AppSchemaEnum { get }
An enum schema for a page navigation setting 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 `books` domain
and a parameter type matches the `pageNavigationSetting` schema,
you can generate the protocol conformance the schema requires
for your app enum implementation
with the `@AppEnum( .books.pageNavigationSetting)` 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 `pageNavigationSetting` schema:
```swift
@AppEnum(schema: .books.pageNavigationSetting)
enum BookPageNavigationSetting: String {
case <#BookPageNavigationSetting 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+
relativeLineSpacingChange
Swift declaration
var relativeLineSpacingChange: some AppSchemaEnum { get }
An enum schema for a relative line spacing change 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 `books` domain
and a parameter type matches the `relativeLineSpacingChange` schema,
you can generate the protocol conformance the schema requires
for your app enum implementation
with the `@AppEnum( .books.relativeLineSpacingChange)` 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 `relativeLineSpacingChange` schema:
```swift
@AppEnum(schema: .books.relativeLineSpacingChange)
enum BookRelativeLineSpacingChange: String {
case <#BookRelativeLineSpacingChange 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+
relativeWordSpacingChange
Swift declaration
var relativeWordSpacingChange: some AppSchemaEnum { get }
An enum schema for a relative word spacing change 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 `books` domain
and a parameter type matches the `relativeWordSpacingChange` schema,
you can generate the protocol conformance the schema requires
for your app enum implementation
with the `@AppEnum( .books.relativeWordSpacingChange)` 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 `relativeWordSpacingChange` schema:
```swift
@AppEnum(schema: .books.relativeWordSpacingChange)
enum BookRelativeWordSpacingChange: String {
case <#BookRelativeWordSpacingChange 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+
relativeCharacterSpacingChange
Swift declaration
var relativeCharacterSpacingChange: some AppSchemaEnum { get }
An enum schema for a relative character spacing change 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 `books` domain
and a parameter type matches the `relativeCharacterSpacingChange` schema,
you can generate the protocol conformance the schema requires
for your app enum implementation
with the `@AppEnum( .books.relativeCharacterSpacingChange)` 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 `relativeCharacterSpacingChange` schema:
```swift
@AppEnum(schema: .books.relativeCharacterSpacingChange)
enum BookRelativeCharacterSpacingChange: String {
case <#BookRelativeCharacterSpacingChange 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+
font
Swift declaration
var font: some AppSchemaEnum { get }
An enum schema for a font 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 `books` domain
and a parameter type matches the `font` schema,
you can generate the protocol conformance the schema requires
for your app enum implementation
with the `@AppEnum( .books.font)` 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 `font` schema:
```swift
@AppEnum(schema: .books.font)
enum BookFont: String {
case <#BookFont 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+
theme
Swift declaration
var theme: some AppSchemaEnum { get }
An enum schema for a theme 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 `books` domain
and a parameter type matches the `theme` schema,
you can generate the protocol conformance the schema requires
for your app enum implementation
with the `@AppEnum( .books.theme)` 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 `theme` schema:
```swift
@AppEnum(schema: .books.theme)
enum BookTheme: String {
case <#BookTheme 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+
fontSize
Swift declaration
var fontSize: some AppSchemaEnum { get }
An enum schema for a font size 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 `books` domain
and a parameter type matches the `fontSize` schema,
you can generate the protocol conformance the schema requires
for your app enum implementation
with the `@AppEnum( .books.fontSize)` 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 `fontSize` schema:
```swift
@AppEnum(schema: .books.fontSize)
enum BookFontSize: String {
case <#BookFontSize 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>.
