Messages

1. Default messaging app

   Covers Preparing your app to be the default messaging app.

2. Custom sticker packs

   Covers Adding Sticker packs and iMessage apps to the system Stickers app, Messages camera, and FaceTime, Adding your sticker packs to Messages, MSStickerBrowserViewController, MSStickerBrowserView.

3. Custom iMessage app interface

   Covers IceCreamBuilder: Building an iMessage Extension, Creating a Sticker App with a Custom Layout, MSMessagesAppViewController, MSMessagesAppTranscriptPresentation.

4. Message content

   Covers MSConversation, MSSticker.

5. Interactive messages

   Covers MSMessage, MSSession, MSMessageLayout, MSMessageTemplateLayout.

6. Critical messages

   Covers Sending SMS messages from an app, MSCriticalSMSMessenger, MSRecipient, MSCriticalMessage.

7. Errors

   Covers MSStickersErrorDomain, MSMessagesErrorDomain, MSMessageErrorCode, MSCriticalMessagingError.

8. Classes

   Covers MSUPIRequest.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.

• Media Library Media
• Media Player Media
• Media Setup Media
• Media Toolbox Media
• MediaExtension Media
• Message UI App Services
• Metal Graphics and Games
• Metal Performance Shaders Graphics and Games
• Metal Performance Shaders Graph Graphics and Games
• MetalFX Graphics and Games
• MetalKit Graphics and Games
• MetricKit System