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react-native/RNTester/README.md
Héctor Ramos fe80a0c01d Add SUPPORT document, update other GitHub templates (#23778)
Summary:
See https://help.github.com/en/articles/adding-support-resources-to-your-project. The SUPPORT file is surfaced by GitHub in several useful places. The goal is to increase discoverability of all support resources, giving the reader an opportunity to find the help they need before they open an issue in the              repository. A secondary goal is to use a friendlier tone when communicating our processes.

The issue templates have been standardized to follow the format used by GitHub's template tool. A bug in the "Regressions" template, due to its use of multiple labels, is fixed as well.
The bot will explain how a changelog can be fixed when it nags a PR.

[General][Added] - Added SUPPORT resources, friendlier messaging.
Pull Request resolved: https://github.com/facebook/react-native/pull/23778

Differential Revision: D14333911

Pulled By: hramos

fbshipit-source-id: d4b3e75194ea7d5c932dd8df2393d5b189f30f35
2019-03-05 17:08:24 -08:00

3.2 KiB

RNTester

The RNTester showcases React Native views and modules.

Running this app

Before running the app, make sure you ran:

git clone https://github.com/facebook/react-native.git
cd react-native
npm install

Running on iOS

Both macOS and Xcode are required.

  • Open RNTester/RNTester.xcodeproj in Xcode
  • Hit the Run button

See Running on device if you want to use a physical device.

Running on iOS with CocoaPods

Similar to above, you can build the app via Xcode with help of CocoaPods.

  • Install CocoaPods
  • Run cd RNTester; pod install
  • Open the generated RNTesterPods.xcworkspace (this is not checked in). Do not open RNTesterPods.xcodeproj directly.

Running on Android

You'll need to have all the prerequisites (SDK, NDK) for Building React Native installed.

Start an Android emulator (Genymotion is recommended).

cd react-native
./gradlew :RNTester:android:app:installDebug
./scripts/packager.sh

Note: Building for the first time can take a while.

Open the RNTester app in your emulator.

See Running on Device in case you want to use a physical device.

Running with Buck

Follow the same setup as running with gradle.

Install Buck from here.

Run the following commands from the react-native folder:

./gradlew :ReactAndroid:packageReactNdkLibsForBuck
buck fetch rntester
buck install -r rntester
./scripts/packager.sh

Note: The native libs are still built using gradle. Full build with buck is coming soon(tm).

Running Detox Tests on iOS

Install Detox from here.

To run the e2e tests locally, run the following commands from the react-native folder:

yarn build-ios-e2e
yarn test-ios-e2e

These are the equivalent of running:

detox build -c ios.sim.release
detox test -c ios.sim.release --cleanup

These build the app in Release mode, so the production code is bundled and included in the built app.

When developing E2E tests, you may want to run in development mode, so that changes to the production code show up immediately. To do this, run:

detox build -c ios.sim.debug
detox test -c ios.sim.debug

You will also need to have Metro Bundler running in another terminal. Note that if you've previously run the E2E tests in release mode, you may need to delete the RNTester/build folder before rerunning detox build.

Built from source

Building the app on both iOS and Android means building the React Native framework from source. This way you're running the latest native and JS code the way you see it in your clone of the github repo.

This is different from apps created using react-native init which have a dependency on a specific version of React Native JS and native code, declared in a package.json file (and build.gradle for Android apps).