Introduction to React Native Workshop
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This document provides an introduction to React Native. It begins with an overview of what React Native is and how it allows React code to render natively on iOS and Android using a JavaScript bridge. It then discusses starting a new project using create-react-native-app or react-native init. The rest of the document outlines the roadmap, covering working with styles, layouts, lists, navigation, networking and touching the native side.
![Combination
<View style={[Styles.headline, {backgroundColor: 'red'}]}>
const Styles = StyleSheet.create({
headline: {
borderLeftColor: Colors.accent,
borderLeftWidth: 9,
paddingLeft: 18,
paddingRight: 18,
paddingTop: 9,
paddingBottom: 9,
},
})](https://image.slidesharecdn.com/workshop-native-180912184035/85/Introduction-to-React-Native-Workshop-49-320.jpg)
![Naive lists, as in the web
export default class Movie extends Component {
constructor(props) {
super(props)
this.state = {
movie: movies.find((movie) => movie.name === 'Pulp Fiction')
}
}
render() {
return (
<View>
<MovieHeader movie={this.state.movie}/>
{ this.state.movie.actors.map(actor => (
<ListItem key={actor} name={actor} image={actors[actor].image}/>
))}
</View>
)
}
}
app/components/Movie.js](https://image.slidesharecdn.com/workshop-native-180912184035/85/Introduction-to-React-Native-Workshop-82-320.jpg)
![Naive lists, as in the web
export default class Movie extends Component {
constructor(props) {
super(props)
this.state = {
movie: movies.find((movie) => movie.name === 'Pulp Fiction')
}
}
render() {
return (
<View>
<MovieHeader movie={this.state.movie}/>
{ this.state.movie.actors.map(actor => (
<ListItem key={actor} name={actor} image={actors[actor].image}/>
))}
</View>
)
}
}
Important to help the reconciler do its work
app/components/Movie.js](https://image.slidesharecdn.com/workshop-native-180912184035/85/Introduction-to-React-Native-Workshop-83-320.jpg)
![FlatList
render() {
return (
<View>
<MovieHeader movie={this.state.movie}/>
<FlatList
data={this.state.movie.actors}
renderItem={({item}) =>
<ListItem name={item} image={this.state.actors[item].image}/>
}
/>
</View>
)
}
app/components/Movie.js](https://image.slidesharecdn.com/workshop-native-180912184035/85/Introduction-to-React-Native-Workshop-86-320.jpg)
![FlatList
What about the keys?
<FlatList
data={this.state.movie.actors}
keyExtractor={item => item}
renderItem={({item}) =>
<ListItem name={item} image={this.state.actors[item].image}/>
}
/>](https://image.slidesharecdn.com/workshop-native-180912184035/85/Introduction-to-React-Native-Workshop-89-320.jpg)
![FlatList
What about the keys?
<FlatList
data={this.state.movie.actors}
keyExtractor={item => item}
renderItem={({item}) =>
<ListItem name={item} image={this.state.actors[item].image}/>
}
/>](https://image.slidesharecdn.com/workshop-native-180912184035/85/Introduction-to-React-Native-Workshop-90-320.jpg)
![FlatList
Scrolleable area
<FlatList
data={this.state.movie.actors}
keyExtractor={item => item}
renderItem={({item}) =>
<ListItem name={item} image={this.state.actors[item].image}/>
}
/>
<MovieHeader movie={this.state.movie}/>](https://image.slidesharecdn.com/workshop-native-180912184035/85/Introduction-to-React-Native-Workshop-91-320.jpg)
![FlatList
Desired scrolleable area
<FlatList
data={this.state.movie.actors}
ListHeaderComponent={<MovieHeader movie={this.state.movie}/>}
keyExtractor={item => item}
renderItem={({item}) =>
<ListItem name={item} image={this.state.actors[item].image}/>
}
/>](https://image.slidesharecdn.com/workshop-native-180912184035/85/Introduction-to-React-Native-Workshop-93-320.jpg)
![FlatList
Desired scrolleable area
<FlatList
data={this.state.movie.actors}
ListHeaderComponent={<MovieHeader movie={this.state.movie}/>}
keyExtractor={item => item}
renderItem={({item}) =>
<ListItem name={item} image={this.state.actors[item].image}/>
}
/>](https://image.slidesharecdn.com/workshop-native-180912184035/85/Introduction-to-React-Native-Workshop-94-320.jpg)
![Let’s do it
"rnpm": {
"assets": ["./assets/fonts/"]
}
package.json
git checkout mod-native
(To discard your changes)
git reset HEAD --hard
(Expo users: https://docs.expo.io/versions/latest/guides/using-custom-fonts)](https://image.slidesharecdn.com/workshop-native-180912184035/85/Introduction-to-React-Native-Workshop-122-320.jpg)
![Let’s do it
"rnpm": {
"assets": ["./assets/fonts/"]
}
package.json
react-native link
git checkout mod-native
(To discard your changes)
git reset HEAD --hard
(Expo users: https://docs.expo.io/versions/latest/guides/using-custom-fonts)](https://image.slidesharecdn.com/workshop-native-180912184035/85/Introduction-to-React-Native-Workshop-123-320.jpg)
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Introduction to React Native Workshop
- 1. September 2018 Introduction to React Native Nacho Martín
- 2. Nacho Martin I write code at Limenius. We build tailor-made projects, and provide consultancy and formation. We are very happy with React and React Native.
- 3. https://github.com/Limenius/workshop-react-native.git Before we start 🙏 Please go to where you have cloned the repo of the project And run git fetch
- 4. Goal of the workshop To be able to estimate how long would it take you to create a first React Native project (and if you would enjoy it)
- 5. Roadmap: What is React Native Starting a project Working with Styles Layout Lists Navigation Networking Touching the native side
- 6. What is React Native?
- 7. Fundamental premise of React Give me a state and a render() method that depends on it and forget about how and when to render.
- 8. render() { return ( <div className="App"> <button onClick={this.tick}>Click me!</button> <span>Clicks: {this.state.count}</span> </div> ) }
- 9. render() { return ( <div className="App"> <button onClick={this.tick}>Click me!</button> <span>Clicks: {this.state.count}</span> </div> ) } render() { return ( <View style={…}> <Button onPress={this.tick}>Click me!</Button> <Text>Clicks: {this.state.count}</Text> </View> ) }
- 10. render() { return ( <div className="App"> <button onClick={this.tick}>Click me!</button> <span>Clicks: {this.state.count}</span> </div> ) } render() { return ( <View style={…}> <Button onPress={this.tick}>Click me!</Button> <Text>Clicks: {this.state.count}</Text> </View> ) }
- 11. render() { return ( <div className="App"> <button onClick={this.tick}>Click me!</button> <span>Clicks: {this.state.count}</span> </div> ) } render() { return ( <View style={…}> <Button onPress={this.tick}>Click me!</Button> <Text>Clicks: {this.state.count}</Text> </View> ) } React Native
- 12. How is this possible Reconciliation Determines what parts of the tree have changed
- 13. How is this possible Reconciliation Determines what parts of the tree have changed Rendering Actually updates the app
- 14. How is this possible Reconciliation Determines what parts of the tree have changed Rendering Actually updates the app We can have several renderers
- 15. React targets Main react-dom react-native Web iOS android
- 16. React targets Main react-dom react-native Web iOS android But also
- 17. React targets Main react-dom react-native Web iOS android But also react-art react-canvas react-three ReactLibertyreact-worker-dom
- 18. React targets Main react-dom react-native Web iOS android But also react-art react-canvas react-three ReactLibertyreact-worker-dom react-konsul raxreact-native react-blessedreact-tvml
- 19. React targets Main react-dom react-native Web iOS android But also react-art react-canvas react-three ReactLibertyreact-worker-dom react-konsul raxreact-native react-blessedreact-tvml React-GLreact-vr react-hardware react-fs-renderer react-x11
- 20. React targets Main react-dom react-native Web iOS android But also react-art react-canvas react-three ReactLibertyreact-worker-dom react-konsul raxreact-native react-blessedreact-tvml React-GLreact-vr react-hardware react-fs-renderer react-x11 redocx react-titanium React-Gibbon react-pdf react-test-renderer
- 21. React targets Main react-dom react-native Web iOS android But also react-art react-canvas react-three ReactLibertyreact-worker-dom react-konsul raxreact-native react-blessedreact-tvml React-GLreact-vr react-hardware react-fs-renderer react-x11 redocx react-titanium React-Gibbon react-pdf react-test-renderer ink react-sketchapp
- 22. React targets Main react-dom react-native Web iOS android But also react-art react-canvas react-three ReactLibertyreact-worker-dom react-konsul raxreact-native react-blessedreact-tvml React-GLreact-vr react-hardware react-fs-renderer react-x11 redocx react-titanium React-Gibbon react-pdf react-test-renderer ink react-sketchapp And more
- 23. React blessed
- 24. React blessed
- 25. React Sketch.app
- 26. React VR Demo
- 27. How Native is React Native? JS Thread Business logic & Description of what components to render
- 28. How Native is React Native? JS Thread Main Thread UI manipulation with native components Business logic & Description of what components to render
- 29. How Native is React Native? JS Thread Main Thread UI manipulation with native components Business logic & Description of what components to render Bridge
- 30. How much code can we reuse? Tip: if you develop in one platform, test the app in the other from time to time 70%? 80%? 90%?
- 31. How to start a project
- 32. Option 1: create-react-native-app $ npm install -g create-react-native-app $ create-react-native-app AwesomeProject
- 33. Option 1: create-react-native-app Only JS, no iOS or Android code (outside node_modules) If you want to modify native code, $ npm run eject Uses the Expo app to test in real device Meant to have a quick way of trying react-native
- 34. Option 2: react-native init $ npm install -g react-native-cli $ react-native init AwesomeProject
- 35. Option 2: react-native init Complete project with native code More control Needed to use things like CodePush Doesn’t need external tools to publish to the store
- 36. Getting our hands dirty
- 37. git clone https://github.com/Limenius/workshop-react-native.git You are supposed to have done this 🙏 And then yarn install
- 38. git checkout master react-native run-ios And then Or react-native run-android
- 39. Debug tools Cmd + d (Cmd + r) ctrl+m / cmd+m
- 40. Play around Open app/App.js with an editor <Text style={styles.welcome}>Hi there!</Text>Change the text in Try nesting <Text> <Text style={styles.welcome}>Hi there!</Text> Amigo </Text> Try changing some styles welcome: { fontSize: 100, textAlign: 'center', margin: 10, }, Try placing a console.log(‘hi’) before return(… and see it in Chrome dev tools https://www.slideshare.net/nachomartin/react-native-workshop-react-alicante
- 41. Familiarize with errors What happens if we… remove a closing tag (</View>) <View style={styles.container}> Hi there! </View> put text not wrapped in <Text/> try to comment a JSX line with // return ( <View style={styles.container}> <Text style={styles.welcome}>Hi there!</Text> </View> <View/> ) have two root elements use wrong properties for styles ( rename flex -> flexo ) remove the words export default
- 42. Basic components
- 43. git checkout elements git reset HEAD --hard (To discard your changes)
- 44. Exercise: Play with the basic components app/App.js
- 45. Exercise: Build new components Can you build a new component combining others? Ideas: Image with footer (<Text/>), two buttons that display different alerts Can you pass props to that component? Ideas: Pass the text of the footer with props, pass also the image, pass the titles of the buttons Can your build a component with local state? Ideas: Modify the counter to have a “minus 1” button
- 46. Style 💅
- 47. No CSS. Everything is JS <View style={{ borderLeftColor: Colors.accent, borderLeftWidth: 9, backgroundColor: Colors.backgroundSection, padding: 18, paddingVertical: 9, }}> No class No dimensions in pixels No things like padding: 19 9 3 1 camelCased Use constants
- 48. StyleSheet <View style={Styles.headline}> const Styles = StyleSheet.create({ headline: { borderLeftColor: Colors.accent, borderLeftWidth: 9, backgroundColor: Colors.backgroundSection, paddingLeft: 18, paddingRight: 18, paddingTop: 9, paddingBottom: 9, }, })
- 49. Combination <View style={[Styles.headline, {backgroundColor: 'red'}]}> const Styles = StyleSheet.create({ headline: { borderLeftColor: Colors.accent, borderLeftWidth: 9, paddingLeft: 18, paddingRight: 18, paddingTop: 9, paddingBottom: 9, }, })
- 50. git checkout styles (To discard your changes) git reset HEAD --hard
- 51. We want to build this
- 52. Our first goal is to get this (We will practice layouts in the next section)
- 53. components/MovieHeader.js height: 210 fontWeight:‘bold’ fontSize: FontSizes.LargeTitle 48x48, rounded backgroundColor: Colors.highlight color: Colors.text color: Colors.text fontWeight:‘bold’ border: left, size 9, Colors.accent padding: 9, 18 backgroundColor: Colors.backgroundSection
- 54. Exercise 1 84x84 Colors.text, bold Container has: border at bottom size 1, Colors.subtleAccent and background is 'white' components/ListItemActor.js
- 55. Exercise 2 FontSizes.gigantic Colors.background Container has: a background with color: Colors.highlight components/MainHeader.js Image is 40x90 FontSizes.subhead With weight ‘200’ Colors.background Pro exercise:Think how would you add support for themes
- 56. Dimensions import { Dimensions, } from 'react-native' const windowSize = Dimensions.get('window') mainImage: { height: windowSize.height /3, width: undefined }, components/MovieHeader.js
- 57. Dimensions import { Dimensions, } from 'react-native' const windowSize = Dimensions.get('window') mainImage: { height: windowSize.height /3, width: undefined }, Our image height depends on the Height of the window Use sparingly components/MovieHeader.js
- 58. Dimensions import { Dimensions, } from 'react-native' const windowSize = Dimensions.get('window') mainImage: { height: windowSize.height /3, width: undefined }, Our image height depends on the Height of the window Use sparingly Exercise: Can you make another style dependant of Dimensions? What will happen if the device is rotated? Can you find anything in the documentation to fix it? components/MovieHeader.js
- 60. Layouts
- 61. This is flexbox realm flexDirection justifyContent alignItems alignSelf flex alignContent flexBasis flexGrow flexShrink flexWrap
- 62. This is flexbox realm flexDirection justifyContent alignItems alignSelf flex alignContent flexBasis flexGrow flexShrink flexWrap flexDirection: ‘column' flexDirection: ‘row’ (Default)
- 63. This is flexbox realm flexDirection justifyContent alignItems alignSelf flex alignContent flexBasis flexGrow flexShrink flexWrap flexDirection: ‘column' flexDirection: ‘row’ (Default) main direction crossdirection
- 64. This is flexbox realm flexDirection justifyContent alignItems alignSelf flex alignContent flexBasis flexGrow flexShrink flexWrap flexDirection: ‘column' flexDirection: ‘row’ (Default) main direction crossdirection cross direction maindirection
- 65. This is flexbox realm flexDirection justifyContent alignItems alignSelf flex alignContent flexBasis flexGrow flexShrink flexWrap flexDirection: ‘column’ (Default) ‘flex-start’ ‘flex-end’ ‘center' ‘space-around’ ‘space-between’ flexDirection: ‘row’ (Default) ‘flex-start’ ‘flex-end’ ‘center' ‘space-around’ ‘space-between’
- 66. This is flexbox realm flexDirection justifyContent alignItems alignSelf flex alignContent flexBasis flexGrow flexShrink flexWrap flexDirection: ‘column’ (Default) ‘flex-start’ ‘flex-end’ ‘center' ‘stretch’ ‘baseline’ flexDirection: ‘row’ (Default) ‘flex-start’ ‘flex-end’ ‘center' ‘stretch’ ‘baseline’
- 67. This is flexbox realm flexDirection justifyContent alignItems alignSelf flex alignContent flexBasis flexGrow flexShrink flexWrap flexDirection: ‘row’ ‘baseline’
- 68. This is flexbox realm flexDirection justifyContent alignItems alignSelf flex alignContent flexBasis flexGrow flexShrink flexWrap flexDirection: ‘column’ alignSelf: ’end’
- 69. This is flexbox realm flexDirection justifyContent alignItems alignSelf flex alignContent flexBasis flexGrow flexShrink flexWrap flex: 1 flex: 0 flex: 0
- 70. This is flexbox realm flexDirection justifyContent alignItems alignSelf flex alignContent flexBasis flexGrow flexShrink flexWrap flex: 5 flex: 2 flex: 3
- 71. This is flexbox realm flexDirection justifyContent alignItems alignSelf flex alignContent flexBasis flexGrow flexShrink flexWrap flex: 0.5 flex: 0.2 flex: 0.3
- 72. This is flexbox realm flexDirection justifyContent alignItems alignSelf flex alignContent flexBasis flexGrow flexShrink flexWrap flex: 25 flex: 10 flex: 15
- 73. git checkout layout (To discard your changes) git reset HEAD --hard
- 74. Our goal
- 78. Exercise 2 Hint: create subviews if you need them Optional: can you come up with a different layout for any of our three components? app/components/MainHeader.js
- 80. Lists
- 81. Lists are important in mobile
- 82. Naive lists, as in the web export default class Movie extends Component { constructor(props) { super(props) this.state = { movie: movies.find((movie) => movie.name === 'Pulp Fiction') } } render() { return ( <View> <MovieHeader movie={this.state.movie}/> { this.state.movie.actors.map(actor => ( <ListItem key={actor} name={actor} image={actors[actor].image}/> ))} </View> ) } } app/components/Movie.js
- 83. Naive lists, as in the web export default class Movie extends Component { constructor(props) { super(props) this.state = { movie: movies.find((movie) => movie.name === 'Pulp Fiction') } } render() { return ( <View> <MovieHeader movie={this.state.movie}/> { this.state.movie.actors.map(actor => ( <ListItem key={actor} name={actor} image={actors[actor].image}/> ))} </View> ) } } Important to help the reconciler do its work app/components/Movie.js
- 84. Exercise git checkout lists Can you build a list of movies in app/components/MovieList.js ? (To discard your changes) git reset HEAD --hard
- 85. FlatList Highly optimized List component Features: • Scroll loading (onEndReached). • Pull to refresh (onRefresh / refreshing). • Configurable viewability (VPV) callbacks (onViewableItemsChanged / viewabilityConfig). • Horizontal mode (horizontal). • Intelligent item and section separators. • Multi-column support (numColumns) • scrollToEnd, scrollToIndex, and scrollToItem • Better Flow typing.
- 86. FlatList render() { return ( <View> <MovieHeader movie={this.state.movie}/> <FlatList data={this.state.movie.actors} renderItem={({item}) => <ListItem name={item} image={this.state.actors[item].image}/> } /> </View> ) } app/components/Movie.js
- 87. FlatList
- 88. FlatList What about the keys?
- 89. FlatList What about the keys? <FlatList data={this.state.movie.actors} keyExtractor={item => item} renderItem={({item}) => <ListItem name={item} image={this.state.actors[item].image}/> } />
- 90. FlatList What about the keys? <FlatList data={this.state.movie.actors} keyExtractor={item => item} renderItem={({item}) => <ListItem name={item} image={this.state.actors[item].image}/> } />
- 91. FlatList Scrolleable area <FlatList data={this.state.movie.actors} keyExtractor={item => item} renderItem={({item}) => <ListItem name={item} image={this.state.actors[item].image}/> } /> <MovieHeader movie={this.state.movie}/>
- 93. FlatList Desired scrolleable area <FlatList data={this.state.movie.actors} ListHeaderComponent={<MovieHeader movie={this.state.movie}/>} keyExtractor={item => item} renderItem={({item}) => <ListItem name={item} image={this.state.actors[item].image}/> } />
- 94. FlatList Desired scrolleable area <FlatList data={this.state.movie.actors} ListHeaderComponent={<MovieHeader movie={this.state.movie}/>} keyExtractor={item => item} renderItem={({item}) => <ListItem name={item} image={this.state.actors[item].image}/> } />
- 95. Exercise Can you use FlatList in app/components/MovieList.js ? git checkout flatLists item => item reminder In this case works as function(item) { return item } git reset HEAD —hard (To discard your changes)
- 96. Further reading https://facebook.github.io/react-native/blog/2017/03/13/ better-list-views.html Read the docs of the components: FlatList SectionList VirtualizedList
- 97. Navigation
- 98. Navigation
- 99. react-navigation
- 100. Several options StackNavigator TabNavigator DrawerNavigator Or combine them
- 101. Several options StackNavigator TabNavigator DrawerNavigator Or combine them
- 102. Several options StackNavigator TabNavigator DrawerNavigator Or combine them
- 103. Several options StackNavigator TabNavigator DrawerNavigator Or combine them
- 104. Let’s do it git checkout navigation (To discard your changes) git reset HEAD --hard
- 105. Let’s do it const App = createStackNavigator({ Home: { screen: MovieList }, Movie: { screen: Movie }, }, { navigationOptions: { headerTintColor: Colors.accent, headerStyle: Styles.header, } }) app/App.js
- 106. Let’s do it const App = createStackNavigator({ Home: { screen: MovieList }, Movie: { screen: Movie }, }, { navigationOptions: { headerTintColor: Colors.accent, headerStyle: Styles.header, } }) app/App.js export default class MovieList extends Component { static navigationOptions = { title: 'Movies', } //… app/components/MovieList.js
- 107. Let’s do it const App = createStackNavigator({ Home: { screen: MovieList }, Movie: { screen: Movie }, }, { navigationOptions: { headerTintColor: Colors.accent, headerStyle: Styles.header, } }) app/App.js export default class MovieList extends Component { static navigationOptions = { title: 'Movies', } //… app/components/MovieList.js <FlatList data={this.state.movies} ListHeaderComponent={<MainHeader/>} keyExtractor={item => item.name} renderItem={({item}) => <TouchableHighlight underlayColor={Colors.subtleAccent} activeOpacity={0.5} onPress={() => navigate('Movie', {name: item.name})} > <View> <ListItem name={item.name} image={item.image}/> </View> </TouchableHighlight> } /> In render()
- 108. Let’s do it const App = createStackNavigator({ Home: { screen: MovieList }, Movie: { screen: Movie }, }, { navigationOptions: { headerTintColor: Colors.accent, headerStyle: Styles.header, } }) app/App.js export default class MovieList extends Component { static navigationOptions = { title: 'Movies', } //… app/components/MovieList.js <FlatList data={this.state.movies} ListHeaderComponent={<MainHeader/>} keyExtractor={item => item.name} renderItem={({item}) => <TouchableHighlight underlayColor={Colors.subtleAccent} activeOpacity={0.5} onPress={() => navigate('Movie', {name: item.name})} > <View> <ListItem name={item.name} image={item.image}/> </View> </TouchableHighlight> } /> In render()
- 109. Exercise Can you make a navigation transition from Movie to app/components/Actor ? Steps: - Declare the screen in app/App.js - Use a TouchableHighlight to capture onPress in the actors list of <Movie/> - Provide an appropriate title in <Actor/> - Make the actor displayed based on props.navigation.state.params.name Optional: have a look at https://reactnavigation.org/docs/en/stack-navigator.html And tweak the navigation (Ideas: mode modal, add something to headerRight)
- 110. Networking
- 111. Networking React-native uses the Fetch API If you already know it, you are all set 🎉
- 112. Let’s do it componentDidMount() { return fetch(baseUrl + '/movies') .then((response) => response.json()) .then((responseJson) => { this.setState({ isLoading: false, movies: responseJson, }) }) .catch((error) => { console.error(error); }) } app/components/MovieList.js
- 113. Let’s do it git checkout networking yarn start-server (or npm run start-server) (To discard your changes) git reset HEAD --hard
- 115. Interactive
- 116. Our goal
- 117. Working with state Not specific of React Native, we just use what we know of React
- 118. Let’s do it git checkout interactive (To discard your changes) git reset HEAD --hard
- 119. Modify the native side
- 120. Cases where it is needed Installing packages that have a native side Making our own changes or components Installing assets, such as fonts …
- 121. Simple case Install this font
- 122. Let’s do it "rnpm": { "assets": ["./assets/fonts/"] } package.json git checkout mod-native (To discard your changes) git reset HEAD --hard (Expo users: https://docs.expo.io/versions/latest/guides/using-custom-fonts)
- 123. Let’s do it "rnpm": { "assets": ["./assets/fonts/"] } package.json react-native link git checkout mod-native (To discard your changes) git reset HEAD --hard (Expo users: https://docs.expo.io/versions/latest/guides/using-custom-fonts)
- 124. Assets linked Changes to be committed: (use "git reset HEAD <file>..." to unstage) new file: android/app/src/main/assets/fonts/OleoScript-Bold.ttf new file: android/app/src/main/assets/fonts/OleoScript-Regular.ttf modified: ios/travolta.xcodeproj/project.pbxproj modified: ios/travolta/Info.plist modified: package.json
- 125. Summary: What is React Native Starting a project Working with Styles Layout Lists Navigation Networking Touching the native side