Скачать или смотреть Resolving the Multiple Files for CameraView Error in Android React Native Apps

Discover how to fix the `multiple files for CameraView` error when building your Android app with React Native by switching from `react-native-camera` to `expo-camera`.
---
This video is based on the question https://stackoverflow.com/q/63180463/ asked by the user 'Baby Groot' ( https://stackoverflow.com/u/891589/ ) and on the answer https://stackoverflow.com/a/64501274/ provided by the user 'Baby Groot' ( https://stackoverflow.com/u/891589/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Multiple files for cameraview while build app for android react native

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Resolving the Multiple Files for CameraView Error in Android React Native Apps

When developing mobile applications using React Native, developers often encounter various compatibility issues, particularly concerning specific libraries and Android's build processes. One common challenge is the dreaded multiple files for CameraView error. This issue specifically arises when using certain camera packages alongside other dependencies in an Android React Native application. Let's break down this problem and explore a viable solution.

The Problem

In a recent project, a developer faced an issue while trying to build an Android application. The app, which functioned perfectly on iOS, ran into trouble on the Android side due to a conflict between react-native-camera, expo-camera, and Firebase libraries. More specifically, the build process produced an error indicating that the AspectRatio type from com.google.android.cameraview was defined multiple times across different library files.

Error Message

The error displayed during the build process was as follows:

[[See Video to Reveal this Text or Code Snippet]]

This message signals that the build system has encountered the same class from different sources, causing it to fail during compilation.

Proposed Solution: Switch from react-native-camera to expo-camera

To solve this issue, the developer made a crucial decision to replace react-native-camera with expo-camera. Here's how this change resolved the problem:

Benefits of Using expo-camera

Better Compatibility: The expo-camera library is designed to work more seamlessly within the Expo ecosystem, reducing potential library conflicts.

Maintenance and Updates: Using Expo libraries often ensures that you are getting the latest updates without the hassle of managing native dependencies manually.

Simplified API: Developers often find that expo-camera provides a simpler API, making it easier to implement camera features without diving deep into native code.

Implementation Steps

Remove react-native-camera: First, you need to uninstall the react-native-camera library from your project.

[[See Video to Reveal this Text or Code Snippet]]

Install expo-camera: Next, add the expo-camera library.

[[See Video to Reveal this Text or Code Snippet]]

Update Code References: Ensure that you replace all instances of react-native-camera components with the corresponding expo-camera components in your codebase.

Rebuild Your Application: After making these changes, attempt to run your Android application again. This time, the build process should complete successfully without the multiple files error.

Conclusion

Switching from react-native-camera to expo-camera can substantially reduce the complexities and errors encountered during the Android build process in React Native applications. This approach not only resolves the immediate issue but also aligns your app more closely with Expo's ecosystem, fostering greater compatibility and ease of use. If you are stuck in a similar situation as our developer friend, consider making the switch, as it might just save you a lot of headaches.

In case of further complications, be sure to check the documentation of the libraries you are using and keep your dependencies updated to mitigate potential compatibility issues down the line.