CPMessageComposeBarButton A button that activates Siri and initiates the compose message flow. Declarationclass CPMessageComposeBarButton Overview TopicsCreating a Message Compose Bar Buttoninit()init(image:) RelationshipsInherits FromCPBarButtonConforms ToCVarArgCustomDebugStringConvertibleCustomStringConvertibleEquatableHashableNSCodingNSObjectProtocolNSSecureCoding See AlsoProviding Navigation Bar ButtonsbackButtonleadingNavigationBarButtonstrailingNavigationBarButtonsCPBarButton