Getting Started with Jetpack Compose

Anandhu Kalesh
2 min readJul 19, 2024

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Google’s Jetpack Compose is a modern toolkit from Google for building native UIs on Android. It simplifies and accelerates UI development by using a declarative approach, in which you specify how your UI should look and behave, rather than focusing on the steps to achieve it.

Key Features

  1. Declarative UI: Instead of manipulating UI elements directly, you declare what the UI should look like in different states. Compose takes care of updating the UI when the state changes.
  2. Kotlin Integration: Compose is fully integrated with Kotlin, leveraging its language features like lambdas and extension functions for more concise and expressive UI code.
  3. Composable Functions: UI components are built using functions annotated with @Composable. These functions can be combined and reused to create complex UIs.
  4. State Management: Compose provides a simple way to handle state through state variables and state management functions, which automatically trigger UI updates when state changes.
  5. Reactivity: The toolkit is built on a reactive programming model, where UI components react to state changes efficiently.
  6. Modularity: Compose encourages breaking down UI into small, reusable components, making it easier to manage and maintain.
  7. Tooling Support: Jetpack Compose integrates with Android Studio, offering a preview mode for seeing your UI changes in real-time and powerful tools for debugging and performance analysis.

Benefits of Using Jetpack Compose

Reduce code: Less code compared to traditional XML layouts results in faster development and easier maintenance.

Enhanced developer interaction: Declarative approach promotes cleaner code

High-quality animations and interactions: Built-in tools and APIs allow developers to create smooth and responsive animations and user interactions.

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