Joe Birch, a seasoned Android developer and mobile enthusiast, shares his passion for building immersive, user-centric mobile experiences. Through insightful articles, detailed tutorials, and open-source contributions, Birch empowers developers to navigate the ever-changing Android ecosystem with confidence. From Android architecture components to  Jetpack libraries, Birch's content equips readers with the knowledge and skills to excel in mobile app development.

Joe Birch

Material 3 Expressive introduces ButtonGroup, a new composable for displaying horizontal button collections with built-in animations and overflow handling. The component supports clickable buttons, single and multi-select toggles, and connected button groups (replacing deprecated segmented buttons). ButtonGroup automatically handles width animations through animateWidth modifier and MutableInteractionSource, expanding pressed buttons while compressing neighbors. The API provides helper functions (clickableItem, toggleableItem, customItem) within ButtonGroupScope, customizable expansion ratios, and overflow indicators. Connected button groups use specific shapes from ButtonGroupDefaults and can wrap across multiple lines with FlowRow. Currently experimental, requiring opt-in annotation.

Exploring Jetpack Compose: ButtonGroup