A framework for building native macOS apps with React.
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Joshua Gross 10314fe621 Smoother scrolling in ScrollView, HorizontalScrollView
Summary:
Android ScrollView/HorizontalScrollView `smoothScrollTo` contains some logic that, if called multiple times in a short amount of
time, will treat all calls as part of the same animation and will not lengthen the duration
of the animation. This means that, for example, if the user is scrolling rapidly, multiple
pages could be considered part of one animation, causing some page animations to be animated
very rapidly - looking like they're not animated at all.

We use a custom animation to perform `smoothScrollTo` to improve the UX.

This resolves a longstanding issue in non-Fabric RN, as well as Fabric, since this code is shared between the platforms.

Changelog: [Update] Android ScrollView/HorizontalScrollView scrolls using custom animations instead of default Android `smoothScrollTo` implementation, leading to smoother scrolls for paginated ScrollViews

Reviewed By: mdvacca

Differential Revision: D21416520

fbshipit-source-id: 6ebe63cb054a98336b6e81253d35623fe5522f89
2020-05-05 22:27:47 -07:00
.circleci Upgrade tests to Xcode 11.3.1 (#28498) 2020-04-03 11:56:21 -07:00
.github label-actions: Add canned response for upgrade issues 2020-04-14 15:34:44 -07:00
IntegrationTests Upgrade Prettier in Xplat to version 1.19.1 2020-04-09 11:01:58 -07:00
Libraries Update native module specs 2020-05-05 19:37:02 -07:00
RNTester Fix invalid type annotations 2020-05-03 12:09:48 -07:00
React Add prepareForReuse to RCTSafeAreaViewComponentView 2020-05-04 02:59:19 -07:00
ReactAndroid Smoother scrolling in ScrollView, HorizontalScrollView 2020-05-05 22:27:47 -07:00
ReactCommon Make column match fuzzy 2020-05-05 12:04:10 -07:00
bots Loosen up restrictions for internal changelogs (#28486) 2020-04-02 12:50:21 -07:00
docs Generate doc info for RN components 2019-09-19 18:36:25 -07:00
flow Back out "Upgrade Prettier from 1.17 to 2.0.2." 2020-03-24 21:47:35 -07:00
flow-typed/npm Remove outdated metro type definitions 2020-04-22 04:06:15 -07:00
gradle/wrapper Update Gradle Wrapper to 6.3 (#28173) 2020-04-10 11:05:54 -07:00
jest upgrade to flow 0.122.0 2020-04-08 15:35:18 -07:00
keystores Use fb_native_wrapper for all targets 2018-10-31 11:47:42 -07:00
local-cli Update references to the CLI (#23052) 2019-01-21 09:13:08 -08:00
packages Import folly and adjust whitespace to match old codegen 2020-05-05 16:01:55 -07:00
scripts Check en0..en8 when generating ip.txt for iOS debug builds (#28764) 2020-04-28 09:32:55 -07:00
template chore: remove Kotlin version from the default template (#28626) 2020-05-04 14:41:04 -07:00
third-party-podspecs Upgrade Folly to v2020.01.13.00 (#27810) 2020-01-21 12:44:00 -08:00
tools/build_defs Remove remaining external references to JSC 2020-03-11 21:13:01 -07:00
.buckconfig Buck: Use Android SDK 29 during build (#28455) 2020-03-31 09:31:31 -07:00
.buckjavaargs limiting BUCK's memory for CI 2016-02-01 10:49:33 -08:00
.clang-format Moving ObjC specific clang-format rules to the common config 2019-02-11 13:07:09 -08:00
.editorconfig https link to EditorConfig.org (#25267) 2019-06-18 01:58:07 -07:00
.eslintignore Clear some lint warnings (#27893) 2020-01-29 04:36:28 -08:00
.eslintrc Add ES Lint rules for `DynamicColorIOS()`and `ColorAndroid()` (#28398) 2020-03-27 23:02:15 -07:00
.flowconfig Flow 0.123.0 in xplat/js 2020-04-21 22:43:24 -07:00
.flowconfig.android Flow 0.123.0 in xplat/js 2020-04-21 22:43:24 -07:00
.gitattributes Re-sync with internal repository 2020-03-13 17:43:04 -07:00
.gitignore Update .gitignore to ignore ReactAndroid generated Gradle files (#28014) 2020-02-12 23:21:32 -08:00
.nvmrc Add .nvmrc + fix node version for eslint 5 compat (#20109) 2018-07-31 02:34:16 -07:00
.prettierrc Set the Prettier config so it is not forced on users of @react-native-community/eslint-config (#24635) 2019-04-29 09:44:51 -07:00
CODE_OF_CONDUCT.md Adopt Contributor Covenant 2019-08-29 23:21:10 -07:00
CONTRIBUTING.md mention RNTester app in contributor guide (#28042) 2020-03-31 09:10:58 -07:00
ECOSYSTEM.md Add document describing the RN ecosystem. (#24493) 2019-04-17 09:06:37 -07:00
LICENSE Update copyright headers to yearless format 2018-09-11 15:33:07 -07:00
LICENSE-docs More licenses 2015-03-24 19:59:10 -07:00
README.md feat: migrate appveyor to circleci (#28245) 2020-03-30 07:24:57 -07:00
React-Core.podspec Updating the URLs to point at new domain name reactnative.dev 2020-02-24 13:09:11 -08:00
React.podspec Updating the URLs to point at new domain name reactnative.dev 2020-02-24 13:09:11 -08:00
Releases.md Fix typo in Releases.md (#20487) 2018-08-01 07:16:56 -07:00
build.gradle.kts add Detox integrations to Android RNTester app 2020-02-11 10:09:18 -08:00
cli.js Show full price instead of monthly price within the lead form 2019-03-28 16:07:19 -07:00
gradlew Applied missing changes from bumping Gradle wrapper to 6.0.1 (#27639) 2020-01-13 12:54:08 -08:00
gradlew.bat Update Gradle Wrapper to 6.3 (#28173) 2020-04-10 11:05:54 -07:00
index.js RN: Create `RootTag` Type 2020-04-21 19:15:53 -07:00
interface.js Move `react-native-implementation.js` to `index.js` 2019-09-12 03:29:51 -07:00
jest-preset.js Delete hasteImpl, providesModuleNodeModules, and modulePathNameMapper (#24811) 2019-06-05 10:55:08 -07:00
jest.config.js Tidy up license headers [3/n] 2019-10-16 10:06:34 -07:00
metro.config.js fix warning of root metro config (#27883) 2020-01-29 03:53:42 -08:00
package.json Upgrade to Jest 26 2020-05-05 08:33:16 -07:00
react-native.config.js Tidy up license headers [2/n] 2019-10-16 10:06:34 -07:00
react.gradle Update react.gradle (#28776) 2020-04-28 14:45:18 -07:00
rn-get-polyfills.js Remove Polyfills from RN Open Source 2019-04-04 15:20:33 -07:00
runXcodeTests.sh Move non-license comments out of license header 2019-10-15 20:12:12 -07:00
settings.gradle.kts Tidy up license headers 2019-10-22 07:46:08 -07:00
template.config.js Tidy up license headers [3/n] 2019-10-16 10:06:34 -07:00
yarn.lock Upgrade to Jest 26 2020-05-05 08:33:16 -07:00

README.md

React Native

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

React Native is released under the MIT license. Current CircleCI 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 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.

React Native is developed and supported by many companies and individual core contributors. Find out more in our ecosystem overview.

Contents

📋 Requirements

React Native apps may target iOS 10.0 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 bug fixes 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.