react-native/local-cli/templates
Héctor Ramos f4d627c8fa Fix failure due to missing Metro flow types
Summary:
Fixes the Flow failure due to an undefined Ast type.

Before:

```
 $ npm run flow -- check

> react-native@1000.0.0 flow /Users/hramos/git/react-native
> flow "check"

Error: local-cli/__tests__/fs-mock-test.js:27
 27:   beforeEach(() => {
       ^^^^^^^^^^ beforeEach. Could not resolve name

Error: local-cli/__tests__/fs-mock-test.js:53
 53:       expect(content).toEqual('beep');
           ^^^^^^ expect. Could not resolve name

Error: local-cli/__tests__/fs-mock-test.js:88
 88:         expect(content).toEqual('hello, world!');
             ^^^^^^ expect. Could not resolve name

Error: local-cli/__tests__/fs-mock-test.js:100
100:       expect(content).toEqual('hello, world!');
           ^^^^^^ expect. Could not resolve name

Error: node_modules/metro/src/Bundler/util.js.flow:46
 46: ): Ast {
        ^^^ Ast. Could not resolve name

Error: node_modules/metro/src/ModuleGraph/worker/collect-dependencies.js.flow:283
283: const xp = (module.exports = (ast: Ast) =>
                                        ^^^ Ast. Could not resolve name

Error: node_modules/metro/src/assetTransformer.js.flow:29
 29: ): Promise<{ast: Ast}> {
                      ^^^ Ast. Could not resolve name
```

After

```
$ npm run flow -- check

> react-native@1000.0.0 flow /Users/hramos/git/react-native
> flow "check"

Error: local-cli/__tests__/fs-mock-test.js:27
 27:   beforeEach(() => {
       ^^^^^^^^^^ beforeEach. Could not resolve name

Error: local-cli/__tests__/fs-mock-test.js:53
 53:       expect(content).toEqual('beep');
           ^^^^^^ expect. Could not resolve name

Error: local-cli/__tests__/fs-mock-test.js:88
 88:         expect(content).toEqual('hello, world!');
             ^^^^^^ expect. Could not resolve name

Error: local-cli/__tests__/fs-mock-test.js:100
100:       expect(content).toEqual('hello, world!');
           ^^^^^^ expect. Could not resolve name
```

[ GENERAL ] [ BUGFIX] [ .flowconfig ] - Have Flow ignore Metro node_nodules
Closes https://github.com/facebook/react-native/pull/17187

Differential Revision: D6572303

Pulled By: hramos

fbshipit-source-id: aa256b9725970fcc2a6da6578c83e7c0875e3cfd
2017-12-14 15:19:08 -08:00
..
HelloNavigation Fixed navigation template 2017-10-12 11:44:20 -07:00
HelloWorld Fix failure due to missing Metro flow types 2017-12-14 15:19:08 -08:00
README.md CLI: Add basic Navigation template (Chat) 2017-02-02 03:28:35 -08:00

README.md

App templates

This folder contains basic app templates. These get expanded by 'react-native init' when creating a new app to make it easier for anyone to get started.

Chat Example

This is an example React Native app demonstrates ListViews, text input and navigation between a few screens.

screenshot 2017-01-13 17 24 37 screenshot 2017-01-13 17 24 40

Purpose

One problem with React Native is that it is not trivial to get started: react-native init creates a very simple app that renders some text. Everyone then has to figure out how to do very basic things such as adding a list of items fetched from a server, navigating to a screen when a list item is tapped, or handling text input.

This app is a template used by react-native init so it is easier for anyone to get up and running quickly by having an app with a few screens, a ListView and a TextInput that works well with the software keyboard.

Best practices

Another purpose of this app is to define best practices such as:

  • The folder structure of a standalone React Native app
  • A style guide for JavaScript and React - for this we use the AirBnb style guide
  • Naming conventions

We need your feedback to settle on a good set of best practices. Have you built React Native apps? If so, please use the issues in the repo mkonicek/ChatExample to discuss what you think are the best practices that this example should be using.

Running the app locally

cd ChatExample
yarn
react-native run-ios
react-native run-android

(In case you want to use react-navigation master):

# Install dependencies:
cd react-navigation
yarn
yarn pack --filename react-navigation-1.0.0-alpha.tgz
cd ChatExample
yarn
yarn add ~/code/react-navigation/react-navigation-1.0.0-alpha.tgz