Previous Facebook Messenger Share Kit SDK 1.3 for iOS Hierarchy Class Hierarchy NSObject FBSDKMessengerContext FBSDKMessengerBroadcastContext FBSDKMessengerURLHandlerCancelContext FBSDKMessengerURLHandlerOpenFromComposerContext FBSDKMessengerURLHandlerReplyContext FBSDKMessengerShareButton FBSDKMessengerShareOptions FBSDKMessengerSharer FBSDKMessengerURLHandler Protocol References FBSDKMessengerURLHandlerDelegate Constant References FBSDKMessengerPlatformCapability FBSDKMessengerShareButtonStyle Previous