Struggling with file handling in React Native for mobile compatibility - best practices and performance
I need help solving I'm working on a personal project and I'm integrating two systems and I'm integrating two systems and I'm working on a project and hit a roadblock... Currently developing a mobile application using React Native and I've run into some challenges with file handling, particularly when trying to ensure compatibility across both iOS and Android. The feature I'm implementing requires users to upload images, which then need to be processed and displayed. I've tried using the `react-native-image-picker` library for image selection, and it works well in isolation. However, once I attempt to save these images to the device's storage, performance starts to degrade, especially on older iOS devices. I suspect that the way I'm managing the file system could be optimized. Here's a snippet of how I'm currently handling the image upload: ```javascript import { launchImageLibrary } from 'react-native-image-picker'; import RNFS from 'react-native-fs'; const uploadImage = async () => { const result = await launchImageLibrary({ mediaType: 'photo' }); if (result.assets) { const source = result.assets[0].uri; const filePath = `${RNFS.DocumentDirectoryPath}/${result.assets[0].fileName}`; await RNFS.copyFile(source, filePath); console.log('File saved to:', filePath); } }; ``` While this works, the performance issues manifest when dealing with larger image files. I've looked into using `react-native-fs` for file manipulation, but even with its optimized methods, I'm still experiencing slowdowns. Additionally, I’ve been considering whether I should preprocess images before uploading to reduce their size. My initial thought was to use a library like `react-native-image-resizer`, but I'm unsure if this will really improve performance or complicate the user experience. Are there any best practices for handling files in React Native to maintain performance and ensure compatibility across platforms? Should I be looking at alternative libraries or methods for better handling, and how can I streamline image processing without sacrificing quality? Any insights on architecture patterns that might help here would be greatly appreciated. Thanks in advance! This is part of a larger API I'm building. How would you solve this? I'm using Javascript 3.10 in this project. Thanks for your help in advance! I'm working with Javascript in a Docker container on Linux. Thanks for any help you can provide!