Question 1

What is the current status of Jetpack Compose?

Accepted Answer

As of March 2025, Jetpack Compose is in a very mature state with version 1.7.8 being the latest stable release. The framework has seen widespread adoption, with Material 3 components (version 1.3.1) and extensive tooling support. Key features include:

• Stable APIs for all core components
• Material 3 integration with dynamic theming
• Type-safe navigation (Navigation 2.8+)
• Enhanced performance and stability improvements
• Extensive multiplatform support including desktop and web
• Integration with modern Android features like Predictive Back

Question 2

Can I start using Jetpack Compose in production apps?

Accepted Answer

Yes, absolutely! Jetpack Compose is production-ready and is being used by thousands of apps in production, including major apps from Google and other leading companies. As of 2025:

• Over 80% of the top 1000 apps on Google Play use Jetpack Compose
• All new Google apps are built with Compose
• The framework has a strong ecosystem of libraries and tools
• Performance and stability metrics are excellent
• The learning curve has been significantly reduced with comprehensive documentation and examples

Question 3

What are the latest features in Jetpack Compose?

Accepted Answer

Jetpack Compose continues to evolve with new features as of March 2025:

• Type-safe navigation system using Kotlin Serialization
• New CameraX Compose integration with camera-viewfinder-compose
• Enhanced Material 3 components including Carousel and improved BottomSheet
• Predictive Back support for navigation components
• Improved accessibility features in components like Slider and ProgressIndicator
• Advanced ripple APIs for better customization
• Pull-to-refresh improvements
• Performance optimizations for better rendering and memory usage

Question 4

Will Fragments be deprecated once Compose is released?

Accepted Answer

No, Fragments are not being deprecated. However, with Compose's maturity in 2025, there's less need for Fragments in new applications. Google's official stance is:

• Existing Fragment-based apps can continue using Fragments
• For new features or apps, Compose is the recommended approach
• Compose and Fragments can coexist in the same app
• Migration can be gradual, starting with new features
• Some AndroidX libraries still use Fragments internally, but expose Compose APIs

Question 5

How do I get started with Jetpack Compose in 2025?

Accepted Answer

Getting started with Compose is easier than ever in 2025:

1. Use Android Studio 2024.1.1 or later
2. Add the latest dependencies (as of March 2025):
• compose.ui:1.7.8
• compose.material3:1.3.1
• compose.compiler:1.5.15

Resources:
• Official documentation at developer.android.com/jetpack/compose
• Compose samples repository
• Android Developers YouTube channel
• Compose Multiplatform documentation for cross-platform development

Question 6

What's new in Material 3 for Compose?

Accepted Answer

Material 3 in Compose (version 1.3.1 as of March 2025) includes:

• Dynamic color and Material You integration
• New components like Carousel and enhanced BottomSheet
• Improved accessibility features
• Better support for large screens and foldables
• Enhanced theming capabilities
• Predictive Back support
• Custom color, shape, and elevation support for components
• Surface container improvements
• New pull-to-refresh APIs

Question 7

How does Compose handle AI and ML integration?

Accepted Answer

Jetpack Compose has excellent support for AI/ML integration in 2025:

• Direct integration with Google's ML Kit
• Support for on-device ML models with TensorFlow Lite
• Easy integration with CameraX for ML-powered features
• Compose UI components for AI-powered features like text recognition and image classification
• Support for Gemini AI integration
• Custom ML model visualization tools
• Performance optimizations for ML operations

Question 8

What's the testing story for Compose in 2025?

Accepted Answer

Testing in Compose has matured significantly:

• Comprehensive testing APIs in androidx.compose.ui.test
• Integration with JUnit 5
• Improved screenshot testing support
• Semantic testing capabilities
• Performance testing tools
• Accessibility testing utilities
• Integration with Firebase Test Lab
• Support for automated UI testing
• Better error reporting and test debugging

Question 9

How does Compose handle large screen and foldable devices?

Accepted Answer

Compose has excellent support for large screens and foldables in 2025:

• Adaptive layouts with WindowSizeClass
• Support for different postures and fold states
• Material 3 adaptive components
• Dynamic layout updates for screen changes
• Integration with WindowManager APIs
• Support for multi-window and split-screen
• Drag and drop capabilities
• Responsive UI patterns and guidelines

Question 10

What are the best practices for performance in Compose?

Accepted Answer

Key performance best practices for Compose in 2025:

• Use stable types and immutable data structures
• Implement proper key usage in lists
• Leverage remember and derivedStateOf correctly
• Use LaunchedEffect for side effects
• Optimize recomposition with smart keys
• Use proper scoping for composables
• Implement efficient state management
• Profile with Android Studio's Layout Inspector and Performance tools

Question 11

Where can I see examples to learn about Jetpack Compose?

Accepted Answer

There are many great resources to learn Compose:

1. Learn Jetpack Compose By Example - A comprehensive collection of Compose examples

2. Official Compose Samples - Reference implementations by the Android team

3. Jetpack Compose Course - Official Android course

4. Compose Documentation - Comprehensive official documentation

5. JetpackCompose.app - Community-driven resources and examples

Question 12

How do I learn about the equivalent API for common Android tasks in Jetpack Compose?

Accepted Answer

You can use the Migration Guide tool on JetpackCompose.app to find equivalent APIs. Additionally, the official View to Compose migration guide provides detailed mapping between View-based and Compose APIs.

Question 13

How do I get my apps ready for using Jetpack Compose?

Accepted Answer

To prepare your app for Compose adoption:

1. Ensure you're using uni-directional data flow (ViewModel + StateFlow/LiveData)

2. Start with isolated features or new screens

3. Use the interoperability APIs for gradual migration

4. Follow the official migration strategy

Watch this relevant talk about architecture-agnostic UI development: Video | Slides

Question 14

How would you describe a Composable?

Accepted Answer

@Composable functions are the building blocks of Compose UI. When you annotate a function with @Composable, it can emit UI elements through the Compose runtime. The Compose compiler transforms these functions during compilation, enabling them to be recomposed efficiently when their inputs change. Composable functions follow key principles: they should be idempotent, have no side effects, and describe UI based purely on their input parameters.

Question 15

What kind of tooling is available when building an app with Jetpack Compose?

Accepted Answer

Compose comes with excellent tooling support in Android Studio:

1. Live Preview: See your composables update in real-time as you code

2. Layout Inspector: Debug your Compose UI hierarchy

3. Animation Preview: Preview and debug animations

4. Semantic Tree: Inspect accessibility properties

5. Interactive Preview: Test your composables directly in Android Studio

6. Deploy Preview: Quick deployment of individual composables to device

7. Memory Profiler: Profile Compose UI performance

Android Studio Preview Demo

Question 16

How will I use view models and live data with Compose?

Accepted Answer

Compose works seamlessly with ViewModels and LiveData through the ViewModel composition local and LiveData observing utilities. However, the recommended approach is to use ViewModels with StateFlow/SharedFlow, as they provide better integration with Compose's coroutine-based runtime. Here's an example of using LiveData with Compose.

Question 17

How will Dagger/Hilt fit in with Compose?

Accepted Answer

Dependency injection in Compose works differently from traditional Android Views. Here are the recommended approaches:

1. Use Hilt's ViewModel injection for ViewModels in Compose

2. Leverage CompositionLocal for UI-scoped dependencies

3. Pass dependencies as parameters to composable functions when possible

4. Use remember { } for component-scoped dependencies

The Compose team recommends keeping UI components pure and moving dependencies to the ViewModel or other business logic layers.

Question 18

How does one handle orientation changes in Jetpack Compose?

Accepted Answer

Compose makes handling configuration changes much simpler through its declarative nature. You can:

1. Use WindowSizeClass API to respond to window size changes

2. Use BoxWithConstraints for size-dependent layouts

3. Leverage adaptive layouts with WindowInsets API

4. Use different composables based on Configuration.orientation

The recommended approach is to design responsive layouts that adapt to available space rather than specific orientations. Check out the Adaptive Layouts in Compose guide for best practices.

Question 19

Does Compose work with WearOS?

Accepted Answer

Yes! Compose for Wear OS is now officially supported and stable. It provides dedicated components and patterns for building watch-friendly UIs. Check out the official documentation to get started with Compose on Wear OS.

Question 20

Is there any relation between Flutter & Jetpack Compose?

Accepted Answer

While Flutter and Compose are both declarative UI frameworks, they serve different purposes. Flutter is a cross-platform framework for building apps across multiple platforms (iOS, Android, Web), while Compose is specifically designed for Android and Kotlin Multiplatform applications. They share some conceptual similarities in their declarative approach and reactive programming model, but their implementations, ecosystems, and target platforms are different. Choose Flutter for cross-platform development and Compose for Android-first or Kotlin Multiplatform projects.

Question 21

Can I still use ConstraintLayout with Compose?

Accepted Answer

Yes, Compose has its own implementation of ConstraintLayout that's powerful and intuitive to use. While many layouts can be achieved using simpler components like Row, Column, and Box, ConstraintLayout is still valuable for complex UIs. Check out the official documentation and this example to learn more.

Question 22

Can I use existing Android Views in Jetpack Compose?

Accepted Answer

Yes, Compose provides excellent interoperability with Android Views through the AndroidView composable. You can embed existing Views, custom Views, and ViewGroups within your Compose UI. Additionally, you can use the ComposeView to embed Compose UI within traditional View-based layouts. Here's an example of both approaches.

Question 23

Can I use Jetpack Compose in existing screens of my app?

Accepted Answer

Yes, Compose can be incrementally adopted in existing apps. You can:

1. Use ComposeView in XML layouts

2. Replace individual Views with Compose UI

3. Create new features with Compose

4. Gradually migrate existing screens

Check out this example of Compose-View interop and the official migration guide.

Question 24

What is the testing story for Compose?

Accepted Answer

Compose has comprehensive testing support through its testing library. You can:

1. Write unit tests for composables using createComposeRule()

2. Perform semantic testing using onNode() finder

3. Test animations and state changes

4. Capture screenshots with captureToImage()

5. Use TestTag for reliable element selection

Check out the official testing guide and this example test.

Question 25

Are material design widgets available for use?

Accepted Answer

Yes, Compose has comprehensive support for Material Design through Material3, the latest version of Google's design system. It provides:

1. Complete set of Material components

2. Dynamic color support

3. Dark theme support

4. Custom theming

5. Adaptive layouts

Check out the Material 3 guide and these example implementations.

Material Design Components

Question 26

How does navigation work in Compose?

Accepted Answer

Compose has first-class support for navigation through the Navigation Compose library. It provides:

1. Type-safe navigation with sealed classes

2. Deep linking support

3. Navigation animations

4. Nested navigation

5. ViewModel integration

Check out the official documentation to learn more.

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