protocolType

Declaration

@MainActor var protocolType: UTType { get }

Mentioned in

• Creating a media device extension

Declaring the Protocol Type

Declare a custom Uniform Type Identifier in your extension’s Info.plist using UTExportedTypeDeclarations. The type must conform to public.media-sharing-protocol:

<key>UTExportedTypeDeclarations</key>
<array>
    <dict>
        <key>UTTypeIdentifier</key>
        <string>com.example.sharingprotocol</string>
        <key>UTTypeDescription</key>
        <string>My Sharing Protocol</string>
        <key>UTTypeConformsTo</key>
        <array>
            <string>public.media-sharing-protocol</string>
        </array>
        <key>UTTypeIcons</key>
		<dict>
			<key>UTTypeSymbolName</key>
			<string>sharingprotocol.logo</string>
		</dict>
    </dict>
</array>

• UTTypeIdentifier: A reverse-DNS string that uniquely identifies your protocol. Media apps receive this value through AVSystemRoute/protocolType and use it to determine which protocol is active.

• UTTypeDescription: A human-readable name for the protocol. The system may display this in user interfaces such as the route picker.

• UTTypeConformsTo: Must include public.media-sharing-protocol.

Returning the Type

Return a UTType whose identifier matches the UTTypeIdentifier declared in Info.plist:

var protocolType: UTType {
    UTType("com.example.sharingprotocol")!
}