Fish Redux

Fish Redux is a high-level, componentized application framework for Flutter based on the Redux paradigm. It emphasizes modular “assembly” of application features — you build small “components” with state, actions, views, and connectors, and then assemble them into larger screens or flows. It supports functional programming style, predictable state containers, pluggable component systems, and non-destructive performance (i.e. minimizing unnecessary rebuilds). Fish Redux was developed within Alibaba (for the Xianyu app) to address maintainability and coupling challenges in large, complex Flutter apps. Its architecture makes it well suited for medium to large scale applications where clear separation, reusability, and testability are important.