What is jetpack-compose-playground?

Jetpack Compose Playground is a collection of example code and tutorials for Jetpack Compose, Google's modern toolkit for building Android app user interfaces. Jetpack Compose replaces the older XML-based approach to Android UI with a code-only style where you describe what the screen should look like directly in Kotlin, and the system figures out how to draw it. The repository gathers a wide range of sample snippets covering the building blocks you encounter when writing a Compose-based Android app. These include layout containers like Column, Row, and ConstraintLayout for arranging elements on screen, foundation components like Text, Image, Canvas, and scrolling lists, and Material Design components like buttons, checkboxes, sliders, dialogs, navigation drawers, progress indicators, and text fields. There is also a small cookbook section with practical recipes such as reacting to changes in a text input field. Alongside the code examples, the repository links to a companion website at foso.github.io/compose where the same material is published in a more readable format with explanations. The README also lists a handful of recorded talks from Google about how Compose works conceptually and how to get started. The project is community-driven and open to pull requests. It targets recent versions of Kotlin and Jetpack Compose and is licensed under the MIT license. It is structured as an Android app project, meaning the samples are runnable on a device or emulator rather than being plain scripts. The README includes screenshots of a few of the demo screens to give a quick sense of what the examples look like when running.