Chatto

Chatto is a Swift lightweight framework to build chat applications. It's been designed to be extensible and performant. Along with Chatto there is ChattoAdditions, a companion framework which includes cells for messages and an extensible input component. You can find more details about how it was implemented in our blog. Chatto is a Swift framework to ease the development of chat applications. At the UI level, it takes care of managing the UICollectionView where the messages are displayed and provides a placeholder for an input component. Provides support for interactive dismissal of the keyboard and adjusts the insets automatically when it appears. Calculates this layout in a background queue (partially if your sizing routines can be only executed in the main thread). Triggers notifications to the data source to retrieve more messages (pagination). Encourages clean code by decoupling your message's presentation into different presenters.