This document discusses Messages extensions in iOS, including sticker packs and iMessage apps. Sticker packs simply provide static sets of stickers, while iMessage apps leverage the full Messages framework to interact with the Messages app. Key classes for iMessage apps include MSMessagesAppViewController, MSStickerBrowserViewController, MSConversation, and MSMessage. The document also provides an example of an iMessage app for building ice cream and links to Apple's documentation on Messages extensions.
5. WHATS MESSAGES EXTENSION?
Sticker Packs
? Sticker packs simply provide static
sets of stickers. They do not require
any code. You add stickers by
dragging image ?les into the
Sticker Pack folder inside the
Stickers assets catalog.
?
Extension ( )
? Xcode
??