A framework for building native apps with React. http://facebook.github.io/react-native/
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Toby Cox 67c3ad4e6a Fix pinch crash in touch-responsive views.
Summary:
Fork and rebase of gillessed's PR https://github.com/facebook/react-native/pull/13166 which has gotten stale.

From original PR:

Motivation (required)

Multiple react native developer (including myself) have run into a crash with the react-native-photo-view library (and possibly others). The common solution to this problem lies in the underlying java code, and thus requires a change in the react native source.

The stack trace I am getting is the same as listed here alwx/react-native-photo-view#15.

There was a PR to fix this (#12085) but it was closed. In response to the comments there, in my PR, I do log the exceptions. I don't think we can get any closer to the exception because in the next level of the stack trace, we are in the android sdk code.

Looking at some stack overflow pages and the android bug tracker, it seems that this is the common solution to this bug, and does not cause any impact any functionality.

https://code.google.com/p/android/issues/list?can=1&q=pointerindex+out+of+range&colspec=ID+Status+Priority+Owner+Summary+Stars+Reporter+Opened&cells=tiles

Test Plan (required)

I have manually tested this by compiling react native android from source and have confirmed the exception still gets hit and logged, but does not cause the app to terminate.
Closes https://github.com/facebook/react-native/pull/17167

Differential Revision: D7014296

Pulled By: hramos

fbshipit-source-id: 06b4a31062a591b726d2021e877d16f49881dcfd
2018-02-16 17:33:11 -08:00
.circleci Bump buck to v2018.02.16.01 2018-02-16 13:37:28 -08:00
.github Update CODEOWNERS 2017-12-22 15:46:54 -08:00
ContainerShip Fixing eslint-comments warnings 2018-01-08 17:04:29 -08:00
IntegrationTests Ran rename-unsafe-lifecycles codemod on xplat/js 2018-02-08 10:58:31 -08:00
Libraries Disable font scaling when an explicit font handler is set 2018-02-16 12:37:51 -08:00
RNTester Support for animated tracking in native driver 2018-02-16 12:10:01 -08:00
React tvOS: TV nav event emitter should check for bridge 2018-02-16 14:36:56 -08:00
ReactAndroid Fix pinch crash in touch-responsive views. 2018-02-16 17:33:11 -08:00
ReactCommon Fix main size calculation from the aspect ratio 2018-02-15 07:26:52 -08:00
ReactNative Use only native robolectric_test rules. 2018-02-15 20:10:05 -08:00
babel-preset `babel-preset-react-native`: only require plugins once 2018-01-25 02:45:43 -08:00
bots Stop using GitHub bot commands for now 2018-02-09 13:29:01 -08:00
flow Switch `declare function exports` to `declare module.exports` 2017-12-18 17:25:08 -08:00
flow-github Declare HMRClient module to fix Flow issues in OSS 2018-02-06 16:01:23 -08:00
gradle/wrapper Android - Update Gradle to 2.2.3 2017-01-31 13:13:32 -08:00
jest Fold .eslintrc's into the root eslintrc 2018-02-15 07:53:52 -08:00
keystores Apply auto-formatter for BUCK files in fbandroid. 2017-02-27 14:04:56 -08:00
lib Revert D5409825: [RN] Convert easy files to Prettier 2017-07-12 19:23:58 -07:00
local-cli Change irrelevant Products path in ./local-cli/runIOS/runIOS.js 2018-02-16 14:36:56 -08:00
react-native-cli Revert D5409825: [RN] Convert easy files to Prettier 2017-07-12 19:23:58 -07:00
react-native-git-upgrade Colorize filenames with conflicts when upgrading 2018-02-13 09:19:11 -08:00
scripts Consolidate checkout and yarn steps 2018-02-08 15:20:09 -08:00
third-party-podspecs GLog fix on case sensitive APFS macOS 2018-01-28 22:29:51 -08:00
.buckconfig update gitignore & fix links 2017-05-22 13:03:50 -07:00
.buckjavaargs limiting BUCK's memory for CI 2016-02-01 10:49:33 -08:00
.editorconfig Fix indent of .gradle files 2016-10-19 16:58:36 -07:00
.eslintignore Split out docs to their own repo 2017-12-05 13:02:54 -08:00
.eslintrc Fold .eslintrc's into the root eslintrc 2018-02-15 07:53:52 -08:00
.flowconfig @allow-large-files [flow] upgrade to v0.65.0 2018-02-07 17:37:56 -08:00
.gitattributes Added a .gitattributes file, ensuring that Bash script source files (gradlew and 2015-10-13 23:10:39 -04:00
.gitignore Switch e2e to yarn 2018-02-06 13:04:50 -08:00
.npmignore Update .npmignore to include generated bundle file 2017-02-03 11:43:31 -08:00
CODE_OF_CONDUCT.md Create CODE_OF_CONDUCT.md 2017-10-26 16:47:27 -07:00
CONTRIBUTING.md Fix links to beginner friendly issues 2018-01-13 17:16:13 -08:00
DockerTests.md Docker Testing Environment for Android & JS 2017-02-24 10:59:53 -08:00
Jenkinsfile Container Testing Updates 2017-04-12 16:31:35 -07:00
LICENSE Update license 2015-03-23 10:48:39 -07:00
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PATENTS Update Patent Grant 2015-04-10 12:14:22 -07:00
README.md Removed broken link for 'Getting Help' in the README 2018-01-16 09:36:09 -08:00
React.podspec Delete RCTBatchedBridge 2018-02-05 12:02:35 -08:00
Releases.md Remove references to Travis 2018-01-24 22:18:34 -08:00
breaking-changes.md DOCS ONLY: Update breaking changes location in breaking-changes.md: move to Wiki 2017-02-03 06:28:37 -08:00
build.gradle Update gradle-download-task from 2.0.0 to 3.1.2 to fix boost zip down… 2016-12-07 16:43:28 -08:00
cli.js Revert D5409825: [RN] Convert easy files to Prettier 2017-07-12 19:23:58 -07:00
gradlew Update gradle wrapper binary and scripts 2016-09-09 08:13:59 -07:00
gradlew.bat Update gradle wrapper binary and scripts 2016-09-09 08:13:59 -07:00
jest-preset.json mock mp4 files 2017-10-20 13:05:26 -07:00
package.json Upgrade Jest to 22.3.0 2018-02-15 03:31:49 -08:00
react.gradle Better Android Gradle Plugin 3.x integration 2018-02-16 16:55:46 -08:00
rn-cli.config.js Make the runBeforeMainModule config param to RN repo and make it absolute 2017-09-26 13:06:14 -07:00
rn-get-polyfills.js Move Array<string> to $ReadOnlyArray<string>. Separate polyfill list into a file. 2017-07-13 03:38:23 -07:00
runXcodeTests.sh Re-license and rename UIExplorer integration test app as RNTester 2017-05-08 11:31:19 -07:00
settings.gradle Cleanup settings.gradle 2017-07-28 07:51:09 -07:00
setupBabel.js Rename metro-bundler to metro 2017-11-29 03:35:29 -08:00

README.md

React Native · Circle CI Status npm version PRs Welcome

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

  • Build native mobile apps using JavaScript and React: React Native lets you build mobile apps using only JavaScript. It uses the same design as React, letting you compose a rich mobile UI from declarative components.
  • A React Native app is a real mobile app: 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, 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.
  • Don't waste time recompiling: 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. Give it a try - it's a magical experience.
  • Use native code when you need to: React Native combines smoothly with components written in Objective-C, Java, 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.

See the official React Native website for an introduction to React Native.

Supported operating systems are >= Android 4.1 (API 16) and >= iOS 8.0.


Getting Started

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 websites documentation is divided into multiple sections.

Another great way to learn more about the components and APIs included with React Native is to read their source. Look under the Libraries/Components directory for components like ScrollView and TextInput, for example. The RNTester example is also here to demonstrate some of the ways to use these components. From the source you can get an accurate understanding of each components behavior and API.

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.


Upgrading

React Native is under active development. See the guide on upgrading React Native to keep your project up-to-date.


Contributing

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 bug fixes and improvements, and how to build and test your changes to React Native.

Beginner Friendly Bugs

We have a list of beginner friendly issues to help you get your feet wet in the React Native codebase and familiar with our contribution process. This is a great place to get started.


License

React Native is BSD licensed. We also provide an additional patent grant.

React Native documentation is Creative Commons licensed.