0ee23d0beb
Summary: There were approximately 350 unused suppressions in xplat/js when checking with .flowconfig.android The flow team is partially responsible for this, since our release process hasn't changed since we added the flowconfig. In the diff beneath this one, I added the functionality necessary for us to not add any more unused suppressions. To test it, I made this diff. The steps were: 1. Start iOS server 2. Start android server 3. remove unused ios suppressions 4. remove unused android suppressions 5. add ios suppressions with site=react_native_ios_fb 6. add android suppressions with site=react_native_android_fb 7. remove unused ios suppressions. The ones that are unused are ones where an android comment was inserted as well, since the ios comment no longer is next to the error 8. add suppressions using ios flowconfig with site=react_native_fb 9. remove unused android suppressions. The unused ones are ones that were moved up when the cross-platform suppressions were inserted. I'm going to make this into a script to make sure we don't contribute anymore unused suppressions from our side. The controller you requested could not be found. nolint Reviewed By: TheSavior Differential Revision: D10053893 fbshipit-source-id: 7bee212062f8b2153c6ba906a30cf40df2224019
React Native · 
Learn once, write anywhere: Build mobile apps with React.
See the official React Native website for an introduction to React Native.
Requirements
Supported target operating systems are >= Android 4.1 (API 16) and >= iOS 9.0. You may use Windows, macOS, or Linux as your development operating system, though building and running iOS apps is limited to macOS by default (tools like Expo can be used to get around this).
Building your first React Native app
Follow the Getting Started guide. The recommended way to install React Native depends on your project. Here you can find short guides for the most common scenarios:
How React Native works
React Native lets you build mobile apps using JavaScript. It uses the same design as React, letting you compose a rich mobile UI from declarative components.
With React Native, you don't build a "mobile web app", an "HTML5 app", or a "hybrid app". You build a real mobile app that's indistinguishable from an app built using Objective-C, Java, Kotlin, or Swift. React Native uses the same fundamental UI building blocks as regular iOS and Android apps. You just put those building blocks together using JavaScript and React.
React Native lets you build your app faster. Instead of recompiling, you can reload your app instantly. With hot reloading, you can even run new code while retaining your application state.
React Native combines smoothly with components written in Objective-C, Java, Kotlin, or Swift. It's simple to drop down to native code if you need to optimize a few aspects of your application. It's also easy to build part of your app in React Native, and part of your app using native code directly - that's how the Facebook app works.
The focus of React Native is on developer efficiency across all the platforms you care about - learn once, write anywhere. Facebook uses React Native in multiple production apps and will continue investing in React Native.
Full documentation
The full documentation for React Native can be found on our website. The source for the React Native documentation and website is hosted on a separate repo, https://github.com/facebook/react-native-website.
The React Native documentation only discusses the components, APIs, and topics specific to React Native (React on iOS and Android). For further documentation on the React API that is shared between React Native and React DOM, refer to the React documentation.
Join the React Native community
- Website: https://facebook.github.io/react-native
- Twitter: https://twitter.com/reactnative
- Discussion: https://discuss.reactjs.org/
See the CONTRIBUTING file for how to help out.
License
React Native is MIT licensed, as found in the LICENSE file.
React Native documentation is Creative Commons licensed, as found in the LICENSE-docs file.