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Contributing.md 2.6KB

Contributing to React Native WebView

First off, thank you for considering contributing to the React Native Community. The community-supported packages are only possible because of amazing people like you.

Secondly, we’d like the contribution experience to be as good as possible. While we are a small all-volunteer team, we are happy to hear feedback about your experience, and if we can make the docs or experience better please let us know.

How to test changes

After you fork the repo, clone it to your machine, and make your changes, you’ll want to test them in an app.

In a new react-native init project, do this:

$ yarn add ../react-native-webview
$ react-native link react-native-webview

You may run into a problem where the jest-haste-map module map says react-native was added twice:

Loading dependency graph...(node:32651) UnhandledPromiseRejectionWarning: Error: jest-haste-map: Haste module naming collision:
  Duplicate module name: react-native
  Paths: /Users/myuser/TestApp/node_modules/react-native/package.json collides with /Users/myuser/TestApp/node_modules/react-native-webview/node_modules/react-native/package.json

Just remove the second path like this:

$ rm -rf ./node_modules/react-native-webview/node_modules/react-native

And then re-run the packager:

$ react-native start --reset-cache

When you make a change, you’ll probably need to unlink, remove, re-add, and re-link react-native-webview:

$ react-native unlink react-native-webview && yarn remove react-native-webview
$ yarn add ../react-native-webview && react-native link react-native-webview

Notes

  • We use Flow types. TypeScript types will probably be added at a later date.
  • We don’t intend to support UIWebView and will remove it soon.
  • After pulling this repo and installing all dependencies, you can run flow on iOS and Android-specific files using the commands:
    • yarn test:ios:flow for iOS
    • yarn test:android:flow for Android
  • You can run Jest tests using the command: yarn test:js
  • If you want to add another React Native platform to this repository, you will need to create another .flowconfig for it. If your platform is example, copy the main flowconfig and rename it to .flowconfig.example. Then edit the config to ignore other platforms, and add .*/*[.]example.js to the ignore lists of the other platforms. Then add an entry to package.json like this:
    • "test:example:flow": "flow check --flowconfig-name .flowconfig.example"
  • Currently you need to install React Native 0.57 to be able to test these types - flow check will not pass against 0.56.