Summary:
Currently when we change the app name in `app.json`, run `react-native eject` and then run the application, we get the following error `Application HelloWorld2 has not been registered`
<img src="https://user-images.githubusercontent.com/6805530/34646396-9a68ccd0-f38c-11e7-9a49-9f985dc20f14.png" width="33%" />
This PR picks up the app name from app.json while registering the application, which prevents the additional step for the user to change the app name while registering in the `index.js`
Tested using sinopia. The new app generated with the `react-native init HelloWorld` contains the changes made.
[CLI] [ENHANCEMENT] [index.js] - App name picked from from app.json for registering application.
Closes https://github.com/facebook/react-native/pull/17472
Differential Revision: D7788652
Pulled By: hramos
fbshipit-source-id: bf23318ae1994b06e5d5908f53818040db1ad5af
Summary:
This change (initially discussed in https://github.com/react-community/create-react-native-app/issues/26) moves the HelloWorld project template from two nearly identical entry points (`index.android.js` and `index.ios.js`) to a single, minimal `index.js` entry point. The root component is created in `App.js`. This unifies the project structure between `react-native init` and Create React Native App and allows CRNA's eject to use the entry point from the HelloWorld template without any hacks to customize it. Also examples in the docs can be just copy-pasted to `App.js` the same way in both HelloWorld and CRNA apps without having to first learn about `AppRegistry.registerComponent`.
* Created a new project from the template using `./scripts/test-manual-e2e.sh` and verified that:
* The app builds, starts and runs both on Android and iOS.
* Editing and reloading changes works.
* The new files (`index.js`, `App.js`, `__tests__/App.js`) get created in the project folder.
<img width="559" alt="screen shot 2017-08-01 at 19 10 51" src="https://user-images.githubusercontent.com/497214/28835171-300a12b6-76ed-11e7-81b2-623639c3b8f6.png">
<img width="467" alt="screen shot 2017-08-01 at 19 09 12" src="https://user-images.githubusercontent.com/497214/28835180-33d285e0-76ed-11e7-8d68-2b3bc44bf585.png">
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Closes https://github.com/facebook/react-native/pull/15312
Differential Revision: D5556276
Pulled By: hramos
fbshipit-source-id: 068fdf7e51381c2bc50321522f2be0db47296c5e
Eli White
Chirag Shah
Ville Immonen
