Relm4 is an idiomatic GUI library inspired by Elm and based on gtk4-rs, aimed at making GUI development easy, productive, and delightful. The latest version, Relm4 0.5, marks the largest release to date, introducing numerous features and improvements to enhance ease of use, stability, and productivity.
Key features in this release include extensive support for asynchronous operations, allowing async code to be integrated seamlessly throughout the library. This facilitates tasks such as interacting with network APIs and simplifies state management by enabling asynchronous initialization of components. Additionally, placeholder widgets can be displayed while models are being initialized.
Widget templates have been introduced, allowing common UI elements to be defined and reused across applications. This feature streamlines the development process by reducing redundancy.
Macro improvements make sending messages from simple signal handlers more intuitive, adopting a syntax similar to the relm crate. Furthermore, new tooling additions, such as Relm4 snippets for IDEs, enhance developer productivity by providing helpful code snippets for implementing Relm4 traits.
Other notable updates include the migration of relm4-components to 0.5, improved documentation through docs.rs, and the addition of a MessageBroker for inter-component communication. The release also includes a Reducer as a message-based alternative to SharedState and various other fixes and enhancements.
Future updates will introduce tools like relm4-format for better macro formatting and relm4-cli to simplify project setup and cross-compilation. The team behind Relm4 acknowledges the contributions from various developers and the gtk-rs team, which have been instrumental in this release.
Pricing
Pricing information is not available