John Shelley 691f2f9d02 Android - Add a ReactFragment (#12199)
Summary:
React Native on Android has currently been focused and targeted at using an [Activity](https://developer.android.com/reference/android/app/Activity.html) for its main form of instantiation.

While this has probably worked for most companies and developers, you lose some of the modularity of a more cohesive application when working in a "brown-field" project that is currently native. This hurts more companies that are looking to adopt React Native and slowly implement it in a fully native application.

A lot of developers follow Android's guidelines of using Fragments in their projects, even if it is a debated subject in the Android community, and this addition will allow others to embrace React Native more freely. (I even assume it could help with managing navigation state in applications that contain a decent amount of Native code and would be appreciated in those projects. Such as sharing the Toolbar, TabBar, ViewPager, etc in Native Android)

Even with this addition, a developer will still need to host the fragment in an activity, but now that activity can contain native logic like a Drawer, Tabs, ViewPager, etc.

**Test plan (required)**
* We have been using this class at Hudl for over a couple of months and have found it valuable.
* If the community agrees on the addition, I can add documentation to the Android sections to include notes about the potential of this Fragment.
* If the community agrees on the addition, I can update one or more of the examples in the `/Examples` folder and make use of the Fragment, or even create a new example that uses a native layout manager like Drawer, Tabs, Viewpager, etc)

Make sure tests pass on both Travis and Circle CI.

_To Note:_
* There is also talk of using React Native inside Android Fragment's without any legit documentation, this could help remedy some of that with more documentation included in this PR https://facebook.github.io/react-native/releases/0.26/docs/embedded-app-android.html#sharing-a-reactinstance-across-multiple-activities-fragments-in-your-app
* Others have also requested something similar and have a half-baked solution as well http://stackoverflow.com/questions/35221447/react-native-inside-a-fragment

[ANDROID][FEATURE][ReactAndroid/src/main/java/com/facebook/react/ReactFragment.java] - Adds support for Android's Fragment system. This allows for a more hybrid application.
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Pull Request resolved: https://github.com/facebook/react-native/pull/12199

Differential Revision: D14590665

Pulled By: mdvacca

fbshipit-source-id: b50b708cde458f9634e0c14b3952fa32f9d82048
2019-04-04 00:23:28 -07:00
2016-02-01 10:49:33 -08:00
2018-08-08 15:03:01 -07:00
2015-03-24 19:59:10 -07:00
2018-08-01 07:16:56 -07:00

React Native

Learn once, write anywhere:
Build mobile apps with React.

React Native is released under the MIT license. Current CircleCI build status. Current Appveyor build status. Current npm package version. PRs welcome! Follow @reactnative

Getting Started · Learn the Basics · Showcase · Contribute · Community · Support

React Native brings React's declarative UI framework to iOS and Android. With React Native, you use native UI controls and have full access to the native platform.

  • Declarative. React makes it painless to create interactive UIs. Declarative views make your code more predictable and easier to debug.
  • Component-Based. Build encapsulated components that manage their own state, then compose them to make complex UIs.
  • Developer Velocity. See local changes in seconds. Changes to JavaScript code can be live reloaded without rebuilding the native app.
  • Portability. Reuse code across iOS, Android, and other platforms.

Contents

📋 Requirements

React Native apps may target iOS 9.0 and Android 4.1 (API 16) or newer. You may use Windows, macOS, or Linux as your development operating system, though building and running iOS apps is limited to macOS. Tools like Expo can be used to work 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:

📖 Documentation

The full documentation for React Native can be found on our website.

The React Native documentation discusses components, APIs, and topics that are specific to React Native. For further documentation on the React API that is shared between React Native and React DOM, refer to the React documentation.

The source for the React Native documentation and website is hosted on a separate repo, @facebook/react-native-website.

🚀 Upgrading

Upgrading to new versions of React Native may give you access to more APIs, views, developer tools and other goodies. See the Upgrading Guide for instructions.

React Native releases are discussed in the React Native Community, @react-native-community/react-native-releases.

👏 How to Contribute

The main purpose of this repository is to continue evolving React Native core. We want to make contributing to this project as easy and transparent as possible, and we are grateful to the community for contributing bugfixes and improvements. Read below to learn how you can take part in improving React Native.

Code of Conduct

Facebook has adopted a Code of Conduct that we expect project participants to adhere to. Please read the full text so that you can understand what actions will and will not be tolerated.

Contributing Guide

Read our Contributing Guide to learn about our development process, how to propose bugfixes and improvements, and how to build and test your changes to React Native.

Open Source Roadmap

You can learn more about our vision for React Native in the Roadmap.

Good First Issues

We have a list of good first issues that contain bugs which have a relatively limited scope. This is a great place to get started, gain experience, and get familiar with our contribution process.

Discussions

Larger discussions and proposals are discussed in @react-native-community/discussions-and-proposals.

📄 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.

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