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Updated docs for next
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Website Deployment Script
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<a href="docs/tutorial.html" target="_blank">Tutorial</a>.</p><h2><a class="anchor" name="quick-start"></a>Quick Start <a class="hash-link" href="docs/getting-started.html#quick-start">#</a></h2><p><a href="https://github.com/react-community/create-react-native-app" target="_blank">Create React Native App</a> is the easiest way to start building a new React Native application. It allows you to start a project without installing or configuring any tools to build native code.</p><p>No Xcode or Android Studio installation is required. Assuming that you have Node installed, you can run the following commands to create a new React Native project called "AwesomeProject":</p><div class="prism language-javascript">npm install <span class="token operator">-</span>g create<span class="token operator">-</span>react<span class="token operator">-</span>native<span class="token operator">-</span>app
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create<span class="token operator">-</span>react<span class="token operator">-</span>native<span class="token operator">-</span>app AwesomeProject
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cd AwesomeProject
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npm start</div><p>This will start a development server for you, and print a QR code in your terminal.</p><p>Install the <a href="https://expo.io" target="_blank">Expo</a> client app on your iOS or Android phone, make sure your phone is on the same network as your computer, and scan the QR code in your terminal to open your project. Create React Native App also has a <a href="https://github.com/react-community/create-react-native-app/blob/master/react-native-scripts/template/README.md" target="_blank">user guide</a> you can reference if you have questions specific to the tool.</p><p>Once you've created your project and opened it in the Expo client app, you can proceed to the <a href="docs/tutorial.html" target="_blank">Tutorial</a>.</p><h3><a class="anchor" name="caveats"></a>Caveats <a class="hash-link" href="docs/getting-started.html#caveats">#</a></h3><p>Because you don't build any native code with Create React Native App, it's not possible to include custom native modules beyond the React Native APIs and components that are available in the Expo client app.</p><p>If you know that you'll eventually need to include your own native code, Create React Native App is still a good way to get started. In that case you'll just need to "<a href="https://github.com/react-community/create-react-native-app/blob/master/react-native-scripts/template/README.md#ejecting-from-create-react-native-app" target="_blank">eject</a>" eventually to create your own native builds. If you do eject, the native build instructions below will be required to continue working on your project.</p><p>If you're integrating React Native into an existing project, you'll want to skip Create React Native App and go directly to setting up the native build environment. See below for instructions on configuring a native build environment for React Native.</p><span><hr style="margin-top:25px"/>
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npm start</div><p>This will start a development server for you, and print a QR code in your terminal.</p><p>Install the <a href="https://expo.io" target="_blank">Expo</a> client app on your iOS or Android phone, make sure your phone is on the same network as your computer, and scan the QR code in your terminal to open your project. Create React Native App also has a <a href="https://github.com/react-community/create-react-native-app/blob/master/react-native-scripts/template/README.md" target="_blank">user guide</a> you can reference if you have questions specific to the tool.</p><p>Once you've created your project and opened it in the Expo client app, you can proceed to the <a href="docs/tutorial.html" target="_blank">Tutorial</a>.</p><h3><a class="anchor" name="caveats"></a>Caveats <a class="hash-link" href="docs/getting-started.html#caveats">#</a></h3><p>The Expo client app usually releases about 1 week after any given React Native release, and Create React Native App always provides the latest version of React Native which is supported by the Expo client. You can check <a href="https://github.com/react-community/create-react-native-app/blob/master/VERSIONS.md" target="_blank">this document</a> to find out what versions are supported.</p><p>Because you don't build any native code with Create React Native App, it's not possible to include custom native modules beyond the React Native APIs and components that are available in the Expo client app.</p><p>If you know that you'll eventually need to include your own native code, Create React Native App is still a good way to get started. In that case you'll just need to "<a href="https://github.com/react-community/create-react-native-app/blob/master/react-native-scripts/template/README.md#ejecting-from-create-react-native-app" target="_blank">eject</a>" eventually to create your own native builds. If you do eject, the native build instructions below will be required to continue working on your project.</p><p>If you're integrating React Native into an existing project, you'll want to skip Create React Native App and go directly to setting up the native build environment. See below for instructions on configuring a native build environment for React Native.</p><span><hr style="margin-top:25px"/>
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</span><h2><a class="anchor" name="building-projects-with-native-code"></a>Building Projects with Native Code <a class="hash-link" href="docs/getting-started.html#building-projects-with-native-code">#</a></h2><p>Follow these instructions if you need to build native code in your project. For example, if you "ejected" from Create React Native app, or if you are integrating React Native into an existing application, you'll need this section.</p><p>The instructions are a bit different depending on your development operating system, and whether you want to start developing for iOS or Android. If you want to develop for both iOS and Android, that's fine - you just have to pick
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one to start with, since the setup is a bit different.</p><span><div class="toggler">
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@@ -4,7 +4,7 @@ images from local disk, such as the camera roll.</p><p>This example shows both f
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storage as well as one from network.</p><div class="web-player"><div class="prism language-javascript">import React<span class="token punctuation">,</span> <span class="token punctuation">{</span> Component <span class="token punctuation">}</span> from <span class="token string">'react'</span><span class="token punctuation">;</span>
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import <span class="token punctuation">{</span> AppRegistry<span class="token punctuation">,</span> View<span class="token punctuation">,</span> Image <span class="token punctuation">}</span> from <span class="token string">'react-native'</span><span class="token punctuation">;</span>
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class <span class="token class-name">DisplayAnImage</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
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export default class <span class="token class-name">DisplayAnImage</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
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<span class="token function">render<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
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<span class="token keyword">return</span> <span class="token punctuation">(</span>
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<View<span class="token operator">></span>
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@@ -20,8 +20,8 @@ class <span class="token class-name">DisplayAnImage</span> extends <span class="
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<span class="token punctuation">}</span>
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<span class="token punctuation">}</span>
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<span class="token comment" spellcheck="true">
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// App registration and rendering
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</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'DisplayAnImage'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> DisplayAnImage<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20View%2C%20Image%20%7D%20from%20'react-native'%3B%0A%0Aclass%20DisplayAnImage%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CView%3E%0A%20%20%20%20%20%20%20%20%3CImage%0A%20%20%20%20%20%20%20%20%20%20source%3D%7Brequire('.%2Fimg%2Ffavicon.png')%7D%0A%20%20%20%20%20%20%20%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CImage%0A%20%20%20%20%20%20%20%20%20%20style%3D%7B%7Bwidth%3A%2050%2C%20height%3A%2050%7D%7D%0A%20%20%20%20%20%20%20%20%20%20source%3D%7B%7Buri%3A%20'https%3A%2F%2Ffacebook.github.io%2Freact%2Fimg%2Flogo_og.png'%7D%7D%0A%20%20%20%20%20%20%20%20%2F%3E%0A%20%20%20%20%20%20%3C%2FView%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20App%20registration%20and%20rendering%0AAppRegistry.registerComponent('DisplayAnImage'%2C%20()%20%3D%3E%20DisplayAnImage)%3B" frameborder="0"></iframe></div><p>You can also add <code>style</code> to an image:</p><div class="web-player"><div class="prism language-javascript">import React<span class="token punctuation">,</span> <span class="token punctuation">{</span> Component <span class="token punctuation">}</span> from <span class="token string">'react'</span><span class="token punctuation">;</span>
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// skip this line if using Create React Native App
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</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'DisplayAnImage'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> DisplayAnImage<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20View%2C%20Image%20%7D%20from%20'react-native'%3B%0A%0Aexport%20default%20class%20DisplayAnImage%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CView%3E%0A%20%20%20%20%20%20%20%20%3CImage%0A%20%20%20%20%20%20%20%20%20%20source%3D%7Brequire('.%2Fimg%2Ffavicon.png')%7D%0A%20%20%20%20%20%20%20%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CImage%0A%20%20%20%20%20%20%20%20%20%20style%3D%7B%7Bwidth%3A%2050%2C%20height%3A%2050%7D%7D%0A%20%20%20%20%20%20%20%20%20%20source%3D%7B%7Buri%3A%20'https%3A%2F%2Ffacebook.github.io%2Freact%2Fimg%2Flogo_og.png'%7D%7D%0A%20%20%20%20%20%20%20%20%2F%3E%0A%20%20%20%20%20%20%3C%2FView%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20skip%20this%20line%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent('DisplayAnImage'%2C%20()%20%3D%3E%20DisplayAnImage)%3B" frameborder="0"></iframe></div><p>You can also add <code>style</code> to an image:</p><div class="web-player"><div class="prism language-javascript">import React<span class="token punctuation">,</span> <span class="token punctuation">{</span> Component <span class="token punctuation">}</span> from <span class="token string">'react'</span><span class="token punctuation">;</span>
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import <span class="token punctuation">{</span> AppRegistry<span class="token punctuation">,</span> View<span class="token punctuation">,</span> Image<span class="token punctuation">,</span> StyleSheet <span class="token punctuation">}</span> from <span class="token string">'react-native'</span><span class="token punctuation">;</span>
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const styles <span class="token operator">=</span> StyleSheet<span class="token punctuation">.</span><span class="token function">create<span class="token punctuation">(</span></span><span class="token punctuation">{</span>
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@@ -31,7 +31,7 @@ const styles <span class="token operator">=</span> StyleSheet<span class="token
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<span class="token punctuation">}</span>
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<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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class <span class="token class-name">DisplayAnImageWithStyle</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
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export default class <span class="token class-name">DisplayAnImageWithStyle</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
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<span class="token function">render<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
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<span class="token keyword">return</span> <span class="token punctuation">(</span>
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<View<span class="token operator">></span>
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@@ -44,11 +44,11 @@ class <span class="token class-name">DisplayAnImageWithStyle</span> extends <spa
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<span class="token punctuation">}</span>
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<span class="token punctuation">}</span>
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<span class="token comment" spellcheck="true">
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// App registration and rendering
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// skip these lines if using Create React Native App
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</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span>
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<span class="token string">'DisplayAnImageWithStyle'</span><span class="token punctuation">,</span>
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<span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> DisplayAnImageWithStyle
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<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20View%2C%20Image%2C%20StyleSheet%20%7D%20from%20'react-native'%3B%0A%0Aconst%20styles%20%3D%20StyleSheet.create(%7B%0A%20%20stretch%3A%20%7B%0A%20%20%20%20width%3A%2050%2C%0A%20%20%20%20height%3A%20200%0A%20%20%7D%0A%7D)%3B%0A%0Aclass%20DisplayAnImageWithStyle%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CView%3E%0A%20%20%20%20%20%20%20%20%3CImage%0A%20%20%20%20%20%20%20%20%20%20style%3D%7Bstyles.stretch%7D%0A%20%20%20%20%20%20%20%20%20%20source%3D%7Brequire('.%2Fimg%2Ffavicon.png')%7D%0A%20%20%20%20%20%20%20%20%2F%3E%0A%20%20%20%20%20%20%3C%2FView%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20App%20registration%20and%20rendering%0AAppRegistry.registerComponent(%0A%20%20'DisplayAnImageWithStyle'%2C%0A%20%20()%20%3D%3E%20DisplayAnImageWithStyle%0A)%3B" frameborder="0"></iframe></div><h3><a class="anchor" name="gif-and-webp-support-on-android"></a>GIF and WebP support on Android <a class="hash-link" href="docs/image.html#gif-and-webp-support-on-android">#</a></h3><p>By default, GIF and WebP are not supported on Android.</p><p>You will need to add some optional modules in <code>android/app/build.gradle</code>, depending on the needs of your app.</p><div class="prism language-javascript">dependencies <span class="token punctuation">{</span>
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<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20View%2C%20Image%2C%20StyleSheet%20%7D%20from%20'react-native'%3B%0A%0Aconst%20styles%20%3D%20StyleSheet.create(%7B%0A%20%20stretch%3A%20%7B%0A%20%20%20%20width%3A%2050%2C%0A%20%20%20%20height%3A%20200%0A%20%20%7D%0A%7D)%3B%0A%0Aexport%20default%20class%20DisplayAnImageWithStyle%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CView%3E%0A%20%20%20%20%20%20%20%20%3CImage%0A%20%20%20%20%20%20%20%20%20%20style%3D%7Bstyles.stretch%7D%0A%20%20%20%20%20%20%20%20%20%20source%3D%7Brequire('.%2Fimg%2Ffavicon.png')%7D%0A%20%20%20%20%20%20%20%20%2F%3E%0A%20%20%20%20%20%20%3C%2FView%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20skip%20these%20lines%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent(%0A%20%20'DisplayAnImageWithStyle'%2C%0A%20%20()%20%3D%3E%20DisplayAnImageWithStyle%0A)%3B" frameborder="0"></iframe></div><h3><a class="anchor" name="gif-and-webp-support-on-android"></a>GIF and WebP support on Android <a class="hash-link" href="docs/image.html#gif-and-webp-support-on-android">#</a></h3><p>When building your own native code, GIF and WebP are not supported by default on Android.</p><p>You will need to add some optional modules in <code>android/app/build.gradle</code>, depending on the needs of your app.</p><div class="prism language-javascript">dependencies <span class="token punctuation">{</span>
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<span class="token comment" spellcheck="true"> // If your app supports Android versions before Ice Cream Sandwich (API level 14)
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</span> compile <span class="token string">'com.facebook.fresco:animated-base-support:1.0.1'</span>
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@@ -2,7 +2,7 @@
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create an image, you can use a prop named <code>source</code> to control what image it shows.</p><div class="web-player"><div class="prism language-javascript">import React<span class="token punctuation">,</span> <span class="token punctuation">{</span> Component <span class="token punctuation">}</span> from <span class="token string">'react'</span><span class="token punctuation">;</span>
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import <span class="token punctuation">{</span> AppRegistry<span class="token punctuation">,</span> Image <span class="token punctuation">}</span> from <span class="token string">'react-native'</span><span class="token punctuation">;</span>
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class <span class="token class-name">Bananas</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
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export default class <span class="token class-name">Bananas</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
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<span class="token function">render<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
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<span class="token keyword">let</span> pic <span class="token operator">=</span> <span class="token punctuation">{</span>
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uri<span class="token punctuation">:</span> <span class="token string">'https://upload.wikimedia.org/wikipedia/commons/d/de/Bananavarieties.jpg'</span>
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@@ -12,8 +12,9 @@ class <span class="token class-name">Bananas</span> extends <span class="token c
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<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span>
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<span class="token punctuation">}</span>
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AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'Bananas'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> Bananas<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Image%20%7D%20from%20'react-native'%3B%0A%0Aclass%20Bananas%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20let%20pic%20%3D%20%7B%0A%20%20%20%20%20%20uri%3A%20'https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2Fd%2Fde%2FBananavarieties.jpg'%0A%20%20%20%20%7D%3B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CImage%20source%3D%7Bpic%7D%20style%3D%7B%7Bwidth%3A%20193%2C%20height%3A%20110%7D%7D%2F%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0AAppRegistry.registerComponent('Bananas'%2C%20()%20%3D%3E%20Bananas)%3B" frameborder="0"></iframe></div><p>Notice that <code>{pic}</code> is surrounded by braces, to embed the variable <code>pic</code> into JSX. You can put any JavaScript expression inside braces in JSX.</p><p>Your own components can also use <code>props</code>. This lets you make a single component
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<span class="token comment" spellcheck="true">
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// skip this line if using Create React Native App
|
||||
</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'Bananas'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> Bananas<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Image%20%7D%20from%20'react-native'%3B%0A%0Aexport%20default%20class%20Bananas%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20let%20pic%20%3D%20%7B%0A%20%20%20%20%20%20uri%3A%20'https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2Fd%2Fde%2FBananavarieties.jpg'%0A%20%20%20%20%7D%3B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CImage%20source%3D%7Bpic%7D%20style%3D%7B%7Bwidth%3A%20193%2C%20height%3A%20110%7D%7D%2F%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20skip%20this%20line%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent('Bananas'%2C%20()%20%3D%3E%20Bananas)%3B" frameborder="0"></iframe></div><p>Notice that <code>{pic}</code> is surrounded by braces, to embed the variable <code>pic</code> into JSX. You can put any JavaScript expression inside braces in JSX.</p><p>Your own components can also use <code>props</code>. This lets you make a single component
|
||||
that is used in many different places in your app, with slightly different
|
||||
properties in each place. Just refer to <code>this.props</code> in your <code>render</code> function. Here's an example:</p><div class="web-player"><div class="prism language-javascript">import React<span class="token punctuation">,</span> <span class="token punctuation">{</span> Component <span class="token punctuation">}</span> from <span class="token string">'react'</span><span class="token punctuation">;</span>
|
||||
import <span class="token punctuation">{</span> AppRegistry<span class="token punctuation">,</span> Text<span class="token punctuation">,</span> View <span class="token punctuation">}</span> from <span class="token string">'react-native'</span><span class="token punctuation">;</span>
|
||||
@@ -26,7 +27,7 @@ class <span class="token class-name">Greeting</span> extends <span class="token
|
||||
<span class="token punctuation">}</span>
|
||||
<span class="token punctuation">}</span>
|
||||
|
||||
class <span class="token class-name">LotsOfGreetings</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
export default class <span class="token class-name">LotsOfGreetings</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
<span class="token function">render<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||||
<span class="token keyword">return</span> <span class="token punctuation">(</span>
|
||||
<View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>alignItems<span class="token punctuation">:</span> <span class="token string">'center'</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||||
@@ -37,8 +38,9 @@ class <span class="token class-name">LotsOfGreetings</span> extends <span class=
|
||||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
<span class="token punctuation">}</span>
|
||||
<span class="token punctuation">}</span>
|
||||
|
||||
AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'LotsOfGreetings'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> LotsOfGreetings<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Text%2C%20View%20%7D%20from%20'react-native'%3B%0A%0Aclass%20Greeting%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CText%3EHello%20%7Bthis.props.name%7D!%3C%2FText%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0Aclass%20LotsOfGreetings%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CView%20style%3D%7B%7BalignItems%3A%20'center'%7D%7D%3E%0A%20%20%20%20%20%20%20%20%3CGreeting%20name%3D'Rexxar'%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CGreeting%20name%3D'Jaina'%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CGreeting%20name%3D'Valeera'%20%2F%3E%0A%20%20%20%20%20%20%3C%2FView%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0AAppRegistry.registerComponent('LotsOfGreetings'%2C%20()%20%3D%3E%20LotsOfGreetings)%3B" frameborder="0"></iframe></div><p>Using <code>name</code> as a prop lets us customize the <code>Greeting</code> component, so we can reuse that component for each of our greetings. This example also uses the <code>Greeting</code> component in JSX, just like the built-in components. The power to do this is what makes React so cool - if you find yourself wishing that you had a different set of UI primitives to work with, you just invent new ones.</p><p>The other new thing going on here is the <a href="docs/view.html" target="_blank"><code>View</code></a> component. A <a href="docs/view.html" target="_blank"><code>View</code></a> is useful
|
||||
<span class="token comment" spellcheck="true">
|
||||
// skip this line if using Create React Native App
|
||||
</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'LotsOfGreetings'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> LotsOfGreetings<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Text%2C%20View%20%7D%20from%20'react-native'%3B%0A%0Aclass%20Greeting%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CText%3EHello%20%7Bthis.props.name%7D!%3C%2FText%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0Aexport%20default%20class%20LotsOfGreetings%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CView%20style%3D%7B%7BalignItems%3A%20'center'%7D%7D%3E%0A%20%20%20%20%20%20%20%20%3CGreeting%20name%3D'Rexxar'%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CGreeting%20name%3D'Jaina'%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CGreeting%20name%3D'Valeera'%20%2F%3E%0A%20%20%20%20%20%20%3C%2FView%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20skip%20this%20line%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent('LotsOfGreetings'%2C%20()%20%3D%3E%20LotsOfGreetings)%3B" frameborder="0"></iframe></div><p>Using <code>name</code> as a prop lets us customize the <code>Greeting</code> component, so we can reuse that component for each of our greetings. This example also uses the <code>Greeting</code> component in JSX, just like the built-in components. The power to do this is what makes React so cool - if you find yourself wishing that you had a different set of UI primitives to work with, you just invent new ones.</p><p>The other new thing going on here is the <a href="docs/view.html" target="_blank"><code>View</code></a> component. A <a href="docs/view.html" target="_blank"><code>View</code></a> is useful
|
||||
as a container for other components, to help control style and layout.</p><p>With <code>props</code> and the basic <a href="docs/text.html" target="_blank"><code>Text</code></a>, <a href="docs/image.html" target="_blank"><code>Image</code></a>, and <a href="docs/view.html" target="_blank"><code>View</code></a> components, you can
|
||||
build a wide variety of static screens. To learn how to make your app change over time, you need to <a href="docs/state.html" target="_blank">learn about State</a>.</p></div><div class="docs-prevnext"><a class="docs-prev" href="docs/tutorial.html#content">← Prev</a><a class="docs-next" href="docs/state.html#content">Next →</a></div><p class="edit-page-block">You can <a target="_blank" href="https://github.com/facebook/react-native/blob/master/docs/Props.md">edit the content above on GitHub</a> and send us a pull request!</p></div></section><footer class="nav-footer"><section class="sitemap"><a href="/react-native" class="nav-home"><img src="img/header_logo.png" alt="React Native" width="66" height="58"></a><div><h5><a href="docs/">Docs</a></h5><a href="docs/getting-started.html">Getting Started</a><a href="docs/tutorial.html">Tutorial</a><a href="docs/integration-with-existing-apps.html">Integration With Existing Apps</a><a href="docs/more-resources.html">More Resources</a></div><div><h5><a href="/react-native/support.html">Community</a></h5><a href="/react-native/showcase.html">Showcase</a><a href="http://www.meetup.com/topics/react-native/" target="_blank">Upcoming Events</a><a href="https://www.facebook.com/groups/react.native.community" target="_blank">Facebook Group</a><a href="https://twitter.com/reactnative" target="_blank">Twitter</a></div><div><h5><a href="/react-native/support.html">Help</a></h5><a href="http://stackoverflow.com/questions/tagged/react-native" target="_blank">Stack Overflow</a><a href="https://discord.gg/0ZcbPKXt5bZjGY5n">Reactiflux Chat</a><a href="/react-native/versions.html" target="_blank">Latest Releases</a><a href="https://react-native.canny.io/feature-requests" target="_blank">Feature Requests</a></div><div><h5>More</h5><a href="/react-native/blog">Blog</a><a href="https://github.com/facebook/react-native" target="_blank">GitHub</a><a href="http://facebook.github.io/react/" target="_blank">React</a></div></section><section class="newsletter"><div id="mc_embed_signup"><form action="//reactnative.us10.list-manage.com/subscribe/post?u=db0dd948e2b729ee62625b1a8&id=47cd41008f" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate><div id="mc_embed_signup_scroll"><label for="mce-EMAIL"><h5>Get the React Native Newsletter</h5></label><input type="email" value="" name="EMAIL" class="email" id="mce-EMAIL" placeholder="email address" required><div style="position:absolute;left:-5000px;" aria-hidden="true"><input type="text" name="b_db0dd948e2b729ee62625b1a8_47cd41008f" tabindex="-1" value=""></div><div class="clear"><input type="submit" value="Sign up" name="subscribe" id="mc-embedded-subscribe" class="button"></div></div></form></div></section><a href="https://code.facebook.com/projects/" target="_blank" class="fbOpenSource"><img src="img/oss_logo.png" alt="Facebook Open Source" width="170" height="45"></a><section class="copyright">Copyright © 2017 Facebook Inc.</section></footer></div><div id="fb-root"></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
|
||||
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
|
||||
|
||||
@@ -22,7 +22,7 @@ class <span class="token class-name">Blink</span> extends <span class="token cla
|
||||
<span class="token punctuation">}</span>
|
||||
<span class="token punctuation">}</span>
|
||||
|
||||
class <span class="token class-name">BlinkApp</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
export default class <span class="token class-name">BlinkApp</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
<span class="token function">render<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||||
<span class="token keyword">return</span> <span class="token punctuation">(</span>
|
||||
<View<span class="token operator">></span>
|
||||
@@ -34,8 +34,9 @@ class <span class="token class-name">BlinkApp</span> extends <span class="token
|
||||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
<span class="token punctuation">}</span>
|
||||
<span class="token punctuation">}</span>
|
||||
|
||||
AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'BlinkApp'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> BlinkApp<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Text%2C%20View%20%7D%20from%20'react-native'%3B%0A%0Aclass%20Blink%20extends%20Component%20%7B%0A%20%20constructor(props)%20%7B%0A%20%20%20%20super(props)%3B%0A%20%20%20%20this.state%20%3D%20%7BshowText%3A%20true%7D%3B%0A%0A%20%20%20%20%2F%2F%20Toggle%20the%20state%20every%20second%0A%20%20%20%20setInterval(()%20%3D%3E%20%7B%0A%20%20%20%20%20%20this.setState(previousState%20%3D%3E%20%7B%0A%20%20%20%20%20%20%20%20return%20%7B%20showText%3A%20!previousState.showText%20%7D%3B%0A%20%20%20%20%20%20%7D)%3B%0A%20%20%20%20%7D%2C%201000)%3B%0A%20%20%7D%0A%0A%20%20render()%20%7B%0A%20%20%20%20let%20display%20%3D%20this.state.showText%20%3F%20this.props.text%20%3A%20'%20'%3B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CText%3E%7Bdisplay%7D%3C%2FText%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0Aclass%20BlinkApp%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CView%3E%0A%20%20%20%20%20%20%20%20%3CBlink%20text%3D'I%20love%20to%20blink'%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CBlink%20text%3D'Yes%20blinking%20is%20so%20great'%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CBlink%20text%3D'Why%20did%20they%20ever%20take%20this%20out%20of%20HTML'%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CBlink%20text%3D'Look%20at%20me%20look%20at%20me%20look%20at%20me'%20%2F%3E%0A%20%20%20%20%20%20%3C%2FView%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0AAppRegistry.registerComponent('BlinkApp'%2C%20()%20%3D%3E%20BlinkApp)%3B" frameborder="0"></iframe></div><p>In a real application, you probably won't be setting state with a timer. You might set state when you have new data arrive from the server, or from user input. You can also use a state container like <a href="http://redux.js.org/index.html" target="_blank">Redux</a> to control your data flow. In that case you would use Redux to modify your state rather than calling <code>setState</code> directly. </p><p>When setState is called, BlinkApp will re-render its Component. By calling setState within the Timer, the component will re-render every time the Timer ticks.</p><p>State works the same way as it does in React, so for more details on handling state, you can look at the <a href="https://facebook.github.io/react/docs/component-api.html" target="_blank">React.Component API</a>.
|
||||
<span class="token comment" spellcheck="true">
|
||||
// skip this line if using Create React Native App
|
||||
</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'BlinkApp'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> BlinkApp<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Text%2C%20View%20%7D%20from%20'react-native'%3B%0A%0Aclass%20Blink%20extends%20Component%20%7B%0A%20%20constructor(props)%20%7B%0A%20%20%20%20super(props)%3B%0A%20%20%20%20this.state%20%3D%20%7BshowText%3A%20true%7D%3B%0A%0A%20%20%20%20%2F%2F%20Toggle%20the%20state%20every%20second%0A%20%20%20%20setInterval(()%20%3D%3E%20%7B%0A%20%20%20%20%20%20this.setState(previousState%20%3D%3E%20%7B%0A%20%20%20%20%20%20%20%20return%20%7B%20showText%3A%20!previousState.showText%20%7D%3B%0A%20%20%20%20%20%20%7D)%3B%0A%20%20%20%20%7D%2C%201000)%3B%0A%20%20%7D%0A%0A%20%20render()%20%7B%0A%20%20%20%20let%20display%20%3D%20this.state.showText%20%3F%20this.props.text%20%3A%20'%20'%3B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CText%3E%7Bdisplay%7D%3C%2FText%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0Aexport%20default%20class%20BlinkApp%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CView%3E%0A%20%20%20%20%20%20%20%20%3CBlink%20text%3D'I%20love%20to%20blink'%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CBlink%20text%3D'Yes%20blinking%20is%20so%20great'%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CBlink%20text%3D'Why%20did%20they%20ever%20take%20this%20out%20of%20HTML'%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CBlink%20text%3D'Look%20at%20me%20look%20at%20me%20look%20at%20me'%20%2F%3E%0A%20%20%20%20%20%20%3C%2FView%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20skip%20this%20line%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent('BlinkApp'%2C%20()%20%3D%3E%20BlinkApp)%3B" frameborder="0"></iframe></div><p>In a real application, you probably won't be setting state with a timer. You might set state when you have new data arrive from the server, or from user input. You can also use a state container like <a href="http://redux.js.org/index.html" target="_blank">Redux</a> to control your data flow. In that case you would use Redux to modify your state rather than calling <code>setState</code> directly.</p><p>When setState is called, BlinkApp will re-render its Component. By calling setState within the Timer, the component will re-render every time the Timer ticks.</p><p>State works the same way as it does in React, so for more details on handling state, you can look at the <a href="https://facebook.github.io/react/docs/component-api.html" target="_blank">React.Component API</a>.
|
||||
At this point, you might be annoyed that most of our examples so far use boring default black text. To make things more beautiful, you will have to <a href="docs/style.html" target="_blank">learn about Style</a>.</p></div><div class="docs-prevnext"><a class="docs-prev" href="docs/props.html#content">← Prev</a><a class="docs-next" href="docs/style.html#content">Next →</a></div><p class="edit-page-block">You can <a target="_blank" href="https://github.com/facebook/react-native/blob/master/docs/State.md">edit the content above on GitHub</a> and send us a pull request!</p></div></section><footer class="nav-footer"><section class="sitemap"><a href="/react-native" class="nav-home"><img src="img/header_logo.png" alt="React Native" width="66" height="58"></a><div><h5><a href="docs/">Docs</a></h5><a href="docs/getting-started.html">Getting Started</a><a href="docs/tutorial.html">Tutorial</a><a href="docs/integration-with-existing-apps.html">Integration With Existing Apps</a><a href="docs/more-resources.html">More Resources</a></div><div><h5><a href="/react-native/support.html">Community</a></h5><a href="/react-native/showcase.html">Showcase</a><a href="http://www.meetup.com/topics/react-native/" target="_blank">Upcoming Events</a><a href="https://www.facebook.com/groups/react.native.community" target="_blank">Facebook Group</a><a href="https://twitter.com/reactnative" target="_blank">Twitter</a></div><div><h5><a href="/react-native/support.html">Help</a></h5><a href="http://stackoverflow.com/questions/tagged/react-native" target="_blank">Stack Overflow</a><a href="https://discord.gg/0ZcbPKXt5bZjGY5n">Reactiflux Chat</a><a href="/react-native/versions.html" target="_blank">Latest Releases</a><a href="https://react-native.canny.io/feature-requests" target="_blank">Feature Requests</a></div><div><h5>More</h5><a href="/react-native/blog">Blog</a><a href="https://github.com/facebook/react-native" target="_blank">GitHub</a><a href="http://facebook.github.io/react/" target="_blank">React</a></div></section><section class="newsletter"><div id="mc_embed_signup"><form action="//reactnative.us10.list-manage.com/subscribe/post?u=db0dd948e2b729ee62625b1a8&id=47cd41008f" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate><div id="mc_embed_signup_scroll"><label for="mce-EMAIL"><h5>Get the React Native Newsletter</h5></label><input type="email" value="" name="EMAIL" class="email" id="mce-EMAIL" placeholder="email address" required><div style="position:absolute;left:-5000px;" aria-hidden="true"><input type="text" name="b_db0dd948e2b729ee62625b1a8_47cd41008f" tabindex="-1" value=""></div><div class="clear"><input type="submit" value="Sign up" name="subscribe" id="mc-embedded-subscribe" class="button"></div></div></form></div></section><a href="https://code.facebook.com/projects/" target="_blank" class="fbOpenSource"><img src="img/oss_logo.png" alt="Facebook Open Source" width="170" height="45"></a><section class="copyright">Copyright © 2017 Facebook Inc.</section></footer></div><div id="fb-root"></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
|
||||
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
|
||||
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
|
||||
|
||||
File diff suppressed because one or more lines are too long
@@ -3,7 +3,7 @@
|
||||
stack on top of each other on account of the literal newlines:</p><div class="web-player"><div class="prism language-javascript">import React<span class="token punctuation">,</span> <span class="token punctuation">{</span> Component <span class="token punctuation">}</span> from <span class="token string">'react'</span><span class="token punctuation">;</span>
|
||||
import <span class="token punctuation">{</span> AppRegistry<span class="token punctuation">,</span> Text<span class="token punctuation">,</span> StyleSheet <span class="token punctuation">}</span> from <span class="token string">'react-native'</span><span class="token punctuation">;</span>
|
||||
|
||||
class <span class="token class-name">TextInANest</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
export default class <span class="token class-name">TextInANest</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
<span class="token function">constructor<span class="token punctuation">(</span></span>props<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||||
<span class="token function">super<span class="token punctuation">(</span></span>props<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
<span class="token keyword">this</span><span class="token punctuation">.</span>state <span class="token operator">=</span> <span class="token punctuation">{</span>
|
||||
@@ -36,8 +36,8 @@ const styles <span class="token operator">=</span> StyleSheet<span class="token
|
||||
<span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||||
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
<span class="token comment" spellcheck="true">
|
||||
// App registration and rendering
|
||||
</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'TextInANest'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> TextInANest<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Text%2C%20StyleSheet%20%7D%20from%20'react-native'%3B%0A%0Aclass%20TextInANest%20extends%20Component%20%7B%0A%20%20constructor(props)%20%7B%0A%20%20%20%20super(props)%3B%0A%20%20%20%20this.state%20%3D%20%7B%0A%20%20%20%20%20%20titleText%3A%20%22Bird's%20Nest%22%2C%0A%20%20%20%20%20%20bodyText%3A%20'This%20is%20not%20really%20a%20bird%20nest.'%0A%20%20%20%20%7D%3B%0A%20%20%7D%0A%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CText%20style%3D%7Bstyles.baseText%7D%3E%0A%20%20%20%20%20%20%20%20%3CText%20style%3D%7Bstyles.titleText%7D%20onPress%3D%7Bthis.onPressTitle%7D%3E%0A%20%20%20%20%20%20%20%20%20%20%7Bthis.state.titleText%7D%7B'%5Cn'%7D%7B'%5Cn'%7D%0A%20%20%20%20%20%20%20%20%3C%2FText%3E%0A%20%20%20%20%20%20%20%20%3CText%20numberOfLines%3D%7B5%7D%3E%0A%20%20%20%20%20%20%20%20%20%20%7Bthis.state.bodyText%7D%0A%20%20%20%20%20%20%20%20%3C%2FText%3E%0A%20%20%20%20%20%20%3C%2FText%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0Aconst%20styles%20%3D%20StyleSheet.create(%7B%0A%20%20baseText%3A%20%7B%0A%20%20%20%20fontFamily%3A%20'Cochin'%2C%0A%20%20%7D%2C%0A%20%20titleText%3A%20%7B%0A%20%20%20%20fontSize%3A%2020%2C%0A%20%20%20%20fontWeight%3A%20'bold'%2C%0A%20%20%7D%2C%0A%7D)%3B%0A%0A%2F%2F%20App%20registration%20and%20rendering%0AAppRegistry.registerComponent('TextInANest'%2C%20()%20%3D%3E%20TextInANest)%3B" frameborder="0"></iframe></div></div><h3><a class="anchor" name="props"></a>Props <a class="hash-link" href="docs/text.html#props">#</a></h3><div class="props"><div class="prop"><h4 class="propTitle"><a class="anchor" name="accessible"></a>accessible?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/text.html#accessible">#</a></h4><div><p>When set to <code>true</code>, indicates that the view is an accessibility element. The default value
|
||||
// skip this line if using Create React Native App
|
||||
</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'TextInANest'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> TextInANest<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Text%2C%20StyleSheet%20%7D%20from%20'react-native'%3B%0A%0Aexport%20default%20class%20TextInANest%20extends%20Component%20%7B%0A%20%20constructor(props)%20%7B%0A%20%20%20%20super(props)%3B%0A%20%20%20%20this.state%20%3D%20%7B%0A%20%20%20%20%20%20titleText%3A%20%22Bird's%20Nest%22%2C%0A%20%20%20%20%20%20bodyText%3A%20'This%20is%20not%20really%20a%20bird%20nest.'%0A%20%20%20%20%7D%3B%0A%20%20%7D%0A%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CText%20style%3D%7Bstyles.baseText%7D%3E%0A%20%20%20%20%20%20%20%20%3CText%20style%3D%7Bstyles.titleText%7D%20onPress%3D%7Bthis.onPressTitle%7D%3E%0A%20%20%20%20%20%20%20%20%20%20%7Bthis.state.titleText%7D%7B'%5Cn'%7D%7B'%5Cn'%7D%0A%20%20%20%20%20%20%20%20%3C%2FText%3E%0A%20%20%20%20%20%20%20%20%3CText%20numberOfLines%3D%7B5%7D%3E%0A%20%20%20%20%20%20%20%20%20%20%7Bthis.state.bodyText%7D%0A%20%20%20%20%20%20%20%20%3C%2FText%3E%0A%20%20%20%20%20%20%3C%2FText%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0Aconst%20styles%20%3D%20StyleSheet.create(%7B%0A%20%20baseText%3A%20%7B%0A%20%20%20%20fontFamily%3A%20'Cochin'%2C%0A%20%20%7D%2C%0A%20%20titleText%3A%20%7B%0A%20%20%20%20fontSize%3A%2020%2C%0A%20%20%20%20fontWeight%3A%20'bold'%2C%0A%20%20%7D%2C%0A%7D)%3B%0A%0A%2F%2F%20skip%20this%20line%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent('TextInANest'%2C%20()%20%3D%3E%20TextInANest)%3B" frameborder="0"></iframe></div></div><h3><a class="anchor" name="props"></a>Props <a class="hash-link" href="docs/text.html#props">#</a></h3><div class="props"><div class="prop"><h4 class="propTitle"><a class="anchor" name="accessible"></a>accessible?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/text.html#accessible">#</a></h4><div><p>When set to <code>true</code>, indicates that the view is an accessibility element. The default value
|
||||
for a <code>Text</code> element is <code>true</code>.</p><p>See the
|
||||
<a href="docs/accessibility.html#accessible-ios-android" target="_blank">Accessibility guide</a>
|
||||
for more information.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="allowfontscaling"></a>allowFontScaling?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/text.html#allowfontscaling">#</a></h4><div><p>Specifies whether fonts should scale to respect Text Size accessibility settings. The
|
||||
@@ -61,7 +61,7 @@ The default value is <code>highQuality</code>.</p></div></div><div class="prop">
|
||||
default, a gray oval highlights the text on press down.</p></div></div></div></div><p class="edit-page-block">You can <a target="_blank" href="https://github.com/facebook/react-native/blob/master/Libraries/Text/Text.js">edit the content above on GitHub</a> and send us a pull request!</p><div><h1><a class="anchor" name="description"></a>Description <a class="hash-link" href="docs/text.html#description">#</a></h1><div><h2><a class="anchor" name="nested-text"></a>Nested Text <a class="hash-link" href="docs/text.html#nested-text">#</a></h2><p>Both iOS and Android allow you to display formatted text by annotating ranges of a string with specific formatting like bold or colored text (<code>NSAttributedString</code> on iOS, <code>SpannableString</code> on Android). In practice, this is very tedious. For React Native, we decided to use web paradigm for this where you can nest text to achieve the same effect.</p><div class="web-player"><div class="prism language-javascript">import React<span class="token punctuation">,</span> <span class="token punctuation">{</span> Component <span class="token punctuation">}</span> from <span class="token string">'react'</span><span class="token punctuation">;</span>
|
||||
import <span class="token punctuation">{</span> AppRegistry<span class="token punctuation">,</span> Text <span class="token punctuation">}</span> from <span class="token string">'react-native'</span><span class="token punctuation">;</span>
|
||||
|
||||
class <span class="token class-name">BoldAndBeautiful</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
export default class <span class="token class-name">BoldAndBeautiful</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
<span class="token function">render<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||||
<span class="token keyword">return</span> <span class="token punctuation">(</span>
|
||||
<Text style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>fontWeight<span class="token punctuation">:</span> <span class="token string">'bold'</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span>
|
||||
@@ -73,13 +73,14 @@ class <span class="token class-name">BoldAndBeautiful</span> extends <span class
|
||||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
<span class="token punctuation">}</span>
|
||||
<span class="token punctuation">}</span>
|
||||
|
||||
AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'BoldAndBeautiful'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> BoldAndBeautiful<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Text%20%7D%20from%20'react-native'%3B%0A%0Aclass%20BoldAndBeautiful%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CText%20style%3D%7B%7BfontWeight%3A%20'bold'%7D%7D%3E%0A%20%20%20%20%20%20%20%20I%20am%20bold%0A%20%20%20%20%20%20%20%20%3CText%20style%3D%7B%7Bcolor%3A%20'red'%7D%7D%3E%0A%20%20%20%20%20%20%20%20%20%20and%20red%0A%20%20%20%20%20%20%20%20%3C%2FText%3E%0A%20%20%20%20%20%20%3C%2FText%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0AAppRegistry.registerComponent('BoldAndBeautiful'%2C%20()%20%3D%3E%20BoldAndBeautiful)%3B" frameborder="0"></iframe></div><p>Behind the scenes, React Native converts this to a flat <code>NSAttributedString</code> or <code>SpannableString</code> that contains the following information:</p><div class="prism language-javascript"><span class="token string">"I am bold and red"</span>
|
||||
<span class="token comment" spellcheck="true">
|
||||
// skip this line if using Create React Native App
|
||||
</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'BoldAndBeautiful'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> BoldAndBeautiful<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Text%20%7D%20from%20'react-native'%3B%0A%0Aexport%20default%20class%20BoldAndBeautiful%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CText%20style%3D%7B%7BfontWeight%3A%20'bold'%7D%7D%3E%0A%20%20%20%20%20%20%20%20I%20am%20bold%0A%20%20%20%20%20%20%20%20%3CText%20style%3D%7B%7Bcolor%3A%20'red'%7D%7D%3E%0A%20%20%20%20%20%20%20%20%20%20and%20red%0A%20%20%20%20%20%20%20%20%3C%2FText%3E%0A%20%20%20%20%20%20%3C%2FText%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20skip%20this%20line%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent('BoldAndBeautiful'%2C%20()%20%3D%3E%20BoldAndBeautiful)%3B" frameborder="0"></iframe></div><p>Behind the scenes, React Native converts this to a flat <code>NSAttributedString</code> or <code>SpannableString</code> that contains the following information:</p><div class="prism language-javascript"><span class="token string">"I am bold and red"</span>
|
||||
<span class="token number">0</span><span class="token operator">-</span><span class="token number">9</span><span class="token punctuation">:</span> bold
|
||||
<span class="token number">9</span><span class="token operator">-</span><span class="token number">17</span><span class="token punctuation">:</span> bold<span class="token punctuation">,</span> red</div><h2><a class="anchor" name="nested-views-ios-only"></a>Nested Views (iOS Only) <a class="hash-link" href="docs/text.html#nested-views-ios-only">#</a></h2><p>On iOS, you can nest views within your Text component. Here's an example:</p><div class="web-player"><div class="prism language-javascript">import React<span class="token punctuation">,</span> <span class="token punctuation">{</span> Component <span class="token punctuation">}</span> from <span class="token string">'react'</span><span class="token punctuation">;</span>
|
||||
import <span class="token punctuation">{</span> AppRegistry<span class="token punctuation">,</span> Text<span class="token punctuation">,</span> View <span class="token punctuation">}</span> from <span class="token string">'react-native'</span><span class="token punctuation">;</span>
|
||||
|
||||
class <span class="token class-name">BlueIsCool</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
export default class <span class="token class-name">BlueIsCool</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
<span class="token function">render<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||||
<span class="token keyword">return</span> <span class="token punctuation">(</span>
|
||||
<Text<span class="token operator">></span>
|
||||
@@ -90,8 +91,9 @@ class <span class="token class-name">BlueIsCool</span> extends <span class="toke
|
||||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
<span class="token punctuation">}</span>
|
||||
<span class="token punctuation">}</span>
|
||||
|
||||
AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'BlueIsCool'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> BlueIsCool<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Text%2C%20View%20%7D%20from%20'react-native'%3B%0A%0Aclass%20BlueIsCool%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CText%3E%0A%20%20%20%20%20%20%20%20There%20is%20a%20blue%20square%0A%20%20%20%20%20%20%20%20%3CView%20style%3D%7B%7Bwidth%3A%2050%2C%20height%3A%2050%2C%20backgroundColor%3A%20'steelblue'%7D%7D%20%2F%3E%0A%20%20%20%20%20%20%20%20in%20between%20my%20text.%0A%20%20%20%20%20%20%3C%2FText%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0AAppRegistry.registerComponent('BlueIsCool'%2C%20()%20%3D%3E%20BlueIsCool)%3B" frameborder="0"></iframe></div><blockquote><p>In order to use this feature, you must give the view a <code>width</code> and a <code>height</code>.</p></blockquote><h2><a class="anchor" name="containers"></a>Containers <a class="hash-link" href="docs/text.html#containers">#</a></h2><p>The <code><Text></code> element is special relative to layout: everything inside is no longer using the flexbox layout but using text layout. This means that elements inside of a <code><Text></code> are no longer rectangles, but wrap when they see the end of the line.</p><div class="prism language-javascript"><Text<span class="token operator">></span>
|
||||
<span class="token comment" spellcheck="true">
|
||||
// skip this line if using Create React Native App
|
||||
</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'BlueIsCool'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> BlueIsCool<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Text%2C%20View%20%7D%20from%20'react-native'%3B%0A%0Aexport%20default%20class%20BlueIsCool%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CText%3E%0A%20%20%20%20%20%20%20%20There%20is%20a%20blue%20square%0A%20%20%20%20%20%20%20%20%3CView%20style%3D%7B%7Bwidth%3A%2050%2C%20height%3A%2050%2C%20backgroundColor%3A%20'steelblue'%7D%7D%20%2F%3E%0A%20%20%20%20%20%20%20%20in%20between%20my%20text.%0A%20%20%20%20%20%20%3C%2FText%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20skip%20this%20line%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent('BlueIsCool'%2C%20()%20%3D%3E%20BlueIsCool)%3B" frameborder="0"></iframe></div><blockquote><p>In order to use this feature, you must give the view a <code>width</code> and a <code>height</code>.</p></blockquote><h2><a class="anchor" name="containers"></a>Containers <a class="hash-link" href="docs/text.html#containers">#</a></h2><p>The <code><Text></code> element is special relative to layout: everything inside is no longer using the flexbox layout but using text layout. This means that elements inside of a <code><Text></code> are no longer rectangles, but wrap when they see the end of the line.</p><div class="prism language-javascript"><Text<span class="token operator">></span>
|
||||
<Text<span class="token operator">></span>First part and <<span class="token operator">/</span>Text<span class="token operator">></span>
|
||||
<Text<span class="token operator">></span>second part<<span class="token operator">/</span>Text<span class="token operator">></span>
|
||||
<<span class="token operator">/</span>Text<span class="token operator">></span><span class="token comment" spellcheck="true">
|
||||
|
||||
@@ -7,7 +7,7 @@ such as <code>onSubmitEditing</code> and <code>onFocus</code> that can be subscr
|
||||
example:</p><div class="web-player"><div class="prism language-javascript">import React<span class="token punctuation">,</span> <span class="token punctuation">{</span> Component <span class="token punctuation">}</span> from <span class="token string">'react'</span><span class="token punctuation">;</span>
|
||||
import <span class="token punctuation">{</span> AppRegistry<span class="token punctuation">,</span> TextInput <span class="token punctuation">}</span> from <span class="token string">'react-native'</span><span class="token punctuation">;</span>
|
||||
|
||||
class <span class="token class-name">UselessTextInput</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
export default class <span class="token class-name">UselessTextInput</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
<span class="token function">constructor<span class="token punctuation">(</span></span>props<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||||
<span class="token function">super<span class="token punctuation">(</span></span>props<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
<span class="token keyword">this</span><span class="token punctuation">.</span>state <span class="token operator">=</span> <span class="token punctuation">{</span> text<span class="token punctuation">:</span> <span class="token string">'Useless Placeholder'</span> <span class="token punctuation">}</span><span class="token punctuation">;</span>
|
||||
@@ -24,8 +24,8 @@ class <span class="token class-name">UselessTextInput</span> extends <span class
|
||||
<span class="token punctuation">}</span>
|
||||
<span class="token punctuation">}</span>
|
||||
<span class="token comment" spellcheck="true">
|
||||
// App registration and rendering
|
||||
</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'AwesomeProject'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> UselessTextInput<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20TextInput%20%7D%20from%20'react-native'%3B%0A%0Aclass%20UselessTextInput%20extends%20Component%20%7B%0A%20%20constructor(props)%20%7B%0A%20%20%20%20super(props)%3B%0A%20%20%20%20this.state%20%3D%20%7B%20text%3A%20'Useless%20Placeholder'%20%7D%3B%0A%20%20%7D%0A%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CTextInput%0A%20%20%20%20%20%20%20%20style%3D%7B%7Bheight%3A%2040%2C%20borderColor%3A%20'gray'%2C%20borderWidth%3A%201%7D%7D%0A%20%20%20%20%20%20%20%20onChangeText%3D%7B(text)%20%3D%3E%20this.setState(%7Btext%7D)%7D%0A%20%20%20%20%20%20%20%20value%3D%7Bthis.state.text%7D%0A%20%20%20%20%20%20%2F%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20App%20registration%20and%20rendering%0AAppRegistry.registerComponent('AwesomeProject'%2C%20()%20%3D%3E%20UselessTextInput)%3B" frameborder="0"></iframe></div><p>Note that some props are only available with <code>multiline={true/false}</code>.
|
||||
// skip this line if using Create React Native App
|
||||
</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'AwesomeProject'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> UselessTextInput<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20TextInput%20%7D%20from%20'react-native'%3B%0A%0Aexport%20default%20class%20UselessTextInput%20extends%20Component%20%7B%0A%20%20constructor(props)%20%7B%0A%20%20%20%20super(props)%3B%0A%20%20%20%20this.state%20%3D%20%7B%20text%3A%20'Useless%20Placeholder'%20%7D%3B%0A%20%20%7D%0A%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CTextInput%0A%20%20%20%20%20%20%20%20style%3D%7B%7Bheight%3A%2040%2C%20borderColor%3A%20'gray'%2C%20borderWidth%3A%201%7D%7D%0A%20%20%20%20%20%20%20%20onChangeText%3D%7B(text)%20%3D%3E%20this.setState(%7Btext%7D)%7D%0A%20%20%20%20%20%20%20%20value%3D%7Bthis.state.text%7D%0A%20%20%20%20%20%20%2F%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20skip%20this%20line%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent('AwesomeProject'%2C%20()%20%3D%3E%20UselessTextInput)%3B" frameborder="0"></iframe></div><p>Note that some props are only available with <code>multiline={true/false}</code>.
|
||||
Additionally, border styles that apply to only one side of the element
|
||||
(e.g., <code>borderBottomColor</code>, <code>borderLeftWidth</code>, etc.) will not be applied if
|
||||
<code>multiline=false</code>. To achieve the same effect, you can wrap your <code>TextInput</code>
|
||||
@@ -44,7 +44,7 @@ class <span class="token class-name">UselessTextInput</span> extends <span class
|
||||
<span class="token punctuation">}</span>
|
||||
<span class="token punctuation">}</span>
|
||||
|
||||
class <span class="token class-name">UselessTextInputMultiline</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
export default class <span class="token class-name">UselessTextInputMultiline</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
<span class="token function">constructor<span class="token punctuation">(</span></span>props<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||||
<span class="token function">super<span class="token punctuation">(</span></span>props<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
<span class="token keyword">this</span><span class="token punctuation">.</span>state <span class="token operator">=</span> <span class="token punctuation">{</span>
|
||||
@@ -72,11 +72,11 @@ class <span class="token class-name">UselessTextInputMultiline</span> extends <s
|
||||
<span class="token punctuation">}</span>
|
||||
<span class="token punctuation">}</span>
|
||||
<span class="token comment" spellcheck="true">
|
||||
// App registration and rendering
|
||||
// skip these lines if using Create React Native App
|
||||
</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span>
|
||||
<span class="token string">'AwesomeProject'</span><span class="token punctuation">,</span>
|
||||
<span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> UselessTextInputMultiline
|
||||
<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20View%2C%20TextInput%20%7D%20from%20'react-native'%3B%0A%0Aclass%20UselessTextInput%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CTextInput%0A%20%20%20%20%20%20%20%20%7B...this.props%7D%20%2F%2F%20Inherit%20any%20props%20passed%20to%20it%3B%20e.g.%2C%20multiline%2C%20numberOfLines%20below%0A%20%20%20%20%20%20%20%20editable%20%3D%20%7Btrue%7D%0A%20%20%20%20%20%20%20%20maxLength%20%3D%20%7B40%7D%0A%20%20%20%20%20%20%2F%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0Aclass%20UselessTextInputMultiline%20extends%20Component%20%7B%0A%20%20constructor(props)%20%7B%0A%20%20%20%20super(props)%3B%0A%20%20%20%20this.state%20%3D%20%7B%0A%20%20%20%20%20%20text%3A%20'Useless%20Multiline%20Placeholder'%2C%0A%20%20%20%20%7D%3B%0A%20%20%7D%0A%0A%20%20%2F%2F%20If%20you%20type%20something%20in%20the%20text%20box%20that%20is%20a%20color%2C%20the%20background%20will%20change%20to%20that%0A%20%20%2F%2F%20color.%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%3CView%20style%3D%7B%7B%0A%20%20%20%20%20%20%20backgroundColor%3A%20this.state.text%2C%0A%20%20%20%20%20%20%20borderBottomColor%3A%20'%23000000'%2C%0A%20%20%20%20%20%20%20borderBottomWidth%3A%201%20%7D%7D%0A%20%20%20%20%20%3E%0A%20%20%20%20%20%20%20%3CUselessTextInput%0A%20%20%20%20%20%20%20%20%20multiline%20%3D%20%7Btrue%7D%0A%20%20%20%20%20%20%20%20%20numberOfLines%20%3D%20%7B4%7D%0A%20%20%20%20%20%20%20%20%20onChangeText%3D%7B(text)%20%3D%3E%20this.setState(%7Btext%7D)%7D%0A%20%20%20%20%20%20%20%20%20value%3D%7Bthis.state.text%7D%0A%20%20%20%20%20%20%20%2F%3E%0A%20%20%20%20%20%3C%2FView%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20App%20registration%20and%20rendering%0AAppRegistry.registerComponent(%0A%20'AwesomeProject'%2C%0A%20()%20%3D%3E%20UselessTextInputMultiline%0A)%3B" frameborder="0"></iframe></div><p><code>TextInput</code> has by default a border at the bottom of its view. This border
|
||||
<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20View%2C%20TextInput%20%7D%20from%20'react-native'%3B%0A%0Aclass%20UselessTextInput%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CTextInput%0A%20%20%20%20%20%20%20%20%7B...this.props%7D%20%2F%2F%20Inherit%20any%20props%20passed%20to%20it%3B%20e.g.%2C%20multiline%2C%20numberOfLines%20below%0A%20%20%20%20%20%20%20%20editable%20%3D%20%7Btrue%7D%0A%20%20%20%20%20%20%20%20maxLength%20%3D%20%7B40%7D%0A%20%20%20%20%20%20%2F%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0Aexport%20default%20class%20UselessTextInputMultiline%20extends%20Component%20%7B%0A%20%20constructor(props)%20%7B%0A%20%20%20%20super(props)%3B%0A%20%20%20%20this.state%20%3D%20%7B%0A%20%20%20%20%20%20text%3A%20'Useless%20Multiline%20Placeholder'%2C%0A%20%20%20%20%7D%3B%0A%20%20%7D%0A%0A%20%20%2F%2F%20If%20you%20type%20something%20in%20the%20text%20box%20that%20is%20a%20color%2C%20the%20background%20will%20change%20to%20that%0A%20%20%2F%2F%20color.%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%3CView%20style%3D%7B%7B%0A%20%20%20%20%20%20%20backgroundColor%3A%20this.state.text%2C%0A%20%20%20%20%20%20%20borderBottomColor%3A%20'%23000000'%2C%0A%20%20%20%20%20%20%20borderBottomWidth%3A%201%20%7D%7D%0A%20%20%20%20%20%3E%0A%20%20%20%20%20%20%20%3CUselessTextInput%0A%20%20%20%20%20%20%20%20%20multiline%20%3D%20%7Btrue%7D%0A%20%20%20%20%20%20%20%20%20numberOfLines%20%3D%20%7B4%7D%0A%20%20%20%20%20%20%20%20%20onChangeText%3D%7B(text)%20%3D%3E%20this.setState(%7Btext%7D)%7D%0A%20%20%20%20%20%20%20%20%20value%3D%7Bthis.state.text%7D%0A%20%20%20%20%20%20%20%2F%3E%0A%20%20%20%20%20%3C%2FView%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20skip%20these%20lines%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent(%0A%20'AwesomeProject'%2C%0A%20()%20%3D%3E%20UselessTextInputMultiline%0A)%3B" frameborder="0"></iframe></div><p><code>TextInput</code> has by default a border at the bottom of its view. This border
|
||||
has its padding set by the background image provided by the system, and it
|
||||
cannot be changed. Solutions to avoid this is to either not set height
|
||||
explicitly, case in which the system will take care of displaying the border
|
||||
|
||||
@@ -2,16 +2,17 @@
|
||||
tutorial is aimed at all audiences, whether you have React experience or not.</p><p>Let's do this thing.</p><h2><a class="anchor" name="hello-world"></a>Hello World <a class="hash-link" href="docs/tutorial.html#hello-world">#</a></h2><p>In accordance with the ancient traditions of our people, we must first build an app that does nothing except say "Hello world". Here it is:</p><div class="web-player"><div class="prism language-javascript">import React<span class="token punctuation">,</span> <span class="token punctuation">{</span> Component <span class="token punctuation">}</span> from <span class="token string">'react'</span><span class="token punctuation">;</span>
|
||||
import <span class="token punctuation">{</span> AppRegistry<span class="token punctuation">,</span> Text <span class="token punctuation">}</span> from <span class="token string">'react-native'</span><span class="token punctuation">;</span>
|
||||
|
||||
class <span class="token class-name">AwesomeProject</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
export default class <span class="token class-name">HelloWorldApp</span> extends <span class="token class-name">Component</span> <span class="token punctuation">{</span>
|
||||
<span class="token function">render<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||||
<span class="token keyword">return</span> <span class="token punctuation">(</span>
|
||||
<Text<span class="token operator">></span>Hello world<span class="token operator">!</span><<span class="token operator">/</span>Text<span class="token operator">></span>
|
||||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
<span class="token punctuation">}</span>
|
||||
<span class="token punctuation">}</span>
|
||||
|
||||
AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'AwesomeProject'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> AwesomeProject<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Text%20%7D%20from%20'react-native'%3B%0A%0Aclass%20AwesomeProject%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CText%3EHello%20world!%3C%2FText%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0AAppRegistry.registerComponent('AwesomeProject'%2C%20()%20%3D%3E%20AwesomeProject)%3B" frameborder="0"></iframe></div><p>If you are feeling curious, you can play around with sample code directly in the web simulators. You can also paste it into your <code>index.ios.js</code> or <code>index.android.js</code> file to create a real app on your local machine.</p><h2><a class="anchor" name="what-s-going-on-here"></a>What's going on here? <a class="hash-link" href="docs/tutorial.html#what-s-going-on-here">#</a></h2><p>Some of the things in here might not look like JavaScript to you. Don't panic. This is the future.</p><p>First of all, ES2015 (also known as ES6) is a set of improvements to JavaScript that is now part of the official standard, but not yet supported by all browsers, so often it isn't used yet in web development. React Native ships with ES2015 support, so you can use this stuff without worrying about compatibility. <code>import</code>, <code>from</code>, <code>class</code>, <code>extends</code>, and the <code>() =></code> syntax in the example above are all ES2015 features. If you aren't familiar with ES2015, you can probably pick it up just by reading through sample code like this tutorial has. If you want, <a href="https://babeljs.io/docs/learn-es2015/" target="_blank">this page</a> has a good overview of ES2015 features.</p><p>The other unusual thing in this code example is <code><Text>Hello world!</Text></code>. This is JSX - a syntax for embedding XML within JavaScript. Many frameworks use a special templating language which lets you embed code inside markup language. In React, this is reversed. JSX lets you write your markup language inside code. It looks like HTML on the web, except instead of web things like <code><div></code> or <code><span></code>, you use React components. In this case, <code><Text></code>
|
||||
is a built-in component that just displays some text.</p><h2><a class="anchor" name="component-and-appregistry"></a>Component and AppRegistry <a class="hash-link" href="docs/tutorial.html#component-and-appregistry">#</a></h2><p>So this code is defining <code>HelloWorldApp</code>, a new <code>Component</code>, and it's registering it with the <code>AppRegistry</code>. When you're building a React Native app, you'll be making new components a lot. Anything you see on the screen is some sort of component. A component can be pretty simple - the only thing that's required is a <code>render</code> function which returns some JSX to render.</p><p>The <code>AppRegistry</code> just tells React Native which component is the root one for the whole application. You won't be thinking about <code>AppRegistry</code> a lot - there will probably just be one call to <code>AppRegistry.registerComponent</code> in your whole app. It's included in these examples so you can paste the whole thing into your <code>index.ios.js</code> or <code>index.android.js</code> file and get it running.</p><h2><a class="anchor" name="this-app-doesn-t-do-very-much"></a>This App Doesn't Do Very Much <a class="hash-link" href="docs/tutorial.html#this-app-doesn-t-do-very-much">#</a></h2><p>Good point. To make components do more interesting things, you need to <a href="docs/props.html" target="_blank">learn about Props</a>.</p></div><div class="docs-prevnext"><a class="docs-prev" href="docs/getting-started.html#content">← Prev</a><a class="docs-next" href="docs/props.html#content">Next →</a></div><p class="edit-page-block">You can <a target="_blank" href="https://github.com/facebook/react-native/blob/master/docs/Tutorial.md">edit the content above on GitHub</a> and send us a pull request!</p></div></section><footer class="nav-footer"><section class="sitemap"><a href="/react-native" class="nav-home"><img src="img/header_logo.png" alt="React Native" width="66" height="58"></a><div><h5><a href="docs/">Docs</a></h5><a href="docs/getting-started.html">Getting Started</a><a href="docs/tutorial.html">Tutorial</a><a href="docs/integration-with-existing-apps.html">Integration With Existing Apps</a><a href="docs/more-resources.html">More Resources</a></div><div><h5><a href="/react-native/support.html">Community</a></h5><a href="/react-native/showcase.html">Showcase</a><a href="http://www.meetup.com/topics/react-native/" target="_blank">Upcoming Events</a><a href="https://www.facebook.com/groups/react.native.community" target="_blank">Facebook Group</a><a href="https://twitter.com/reactnative" target="_blank">Twitter</a></div><div><h5><a href="/react-native/support.html">Help</a></h5><a href="http://stackoverflow.com/questions/tagged/react-native" target="_blank">Stack Overflow</a><a href="https://discord.gg/0ZcbPKXt5bZjGY5n">Reactiflux Chat</a><a href="/react-native/versions.html" target="_blank">Latest Releases</a><a href="https://react-native.canny.io/feature-requests" target="_blank">Feature Requests</a></div><div><h5>More</h5><a href="/react-native/blog">Blog</a><a href="https://github.com/facebook/react-native" target="_blank">GitHub</a><a href="http://facebook.github.io/react/" target="_blank">React</a></div></section><section class="newsletter"><div id="mc_embed_signup"><form action="//reactnative.us10.list-manage.com/subscribe/post?u=db0dd948e2b729ee62625b1a8&id=47cd41008f" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate><div id="mc_embed_signup_scroll"><label for="mce-EMAIL"><h5>Get the React Native Newsletter</h5></label><input type="email" value="" name="EMAIL" class="email" id="mce-EMAIL" placeholder="email address" required><div style="position:absolute;left:-5000px;" aria-hidden="true"><input type="text" name="b_db0dd948e2b729ee62625b1a8_47cd41008f" tabindex="-1" value=""></div><div class="clear"><input type="submit" value="Sign up" name="subscribe" id="mc-embedded-subscribe" class="button"></div></div></form></div></section><a href="https://code.facebook.com/projects/" target="_blank" class="fbOpenSource"><img src="img/oss_logo.png" alt="Facebook Open Source" width="170" height="45"></a><section class="copyright">Copyright © 2017 Facebook Inc.</section></footer></div><div id="fb-root"></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
|
||||
<span class="token comment" spellcheck="true">
|
||||
// skip this line if using Create React Native App
|
||||
</span>AppRegistry<span class="token punctuation">.</span><span class="token function">registerComponent<span class="token punctuation">(</span></span><span class="token string">'HelloWorldApp'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> HelloWorldApp<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.2.6/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20Text%20%7D%20from%20'react-native'%3B%0A%0Aexport%20default%20class%20HelloWorldApp%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%3CText%3EHello%20world!%3C%2FText%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%0A%0A%2F%2F%20skip%20this%20line%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent('HelloWorldApp'%2C%20()%20%3D%3E%20HelloWorldApp)%3B" frameborder="0"></iframe></div><p>If you are feeling curious, you can play around with sample code directly in the web simulators. You can also paste it into your <code>index.ios.js</code> or <code>index.android.js</code> file to create a real app on your local machine.</p><h2><a class="anchor" name="what-s-going-on-here"></a>What's going on here? <a class="hash-link" href="docs/tutorial.html#what-s-going-on-here">#</a></h2><p>Some of the things in here might not look like JavaScript to you. Don't panic. This is the future.</p><p>First of all, ES2015 (also known as ES6) is a set of improvements to JavaScript that is now part of the official standard, but not yet supported by all browsers, so often it isn't used yet in web development. React Native ships with ES2015 support, so you can use this stuff without worrying about compatibility. <code>import</code>, <code>from</code>, <code>class</code>, <code>extends</code>, and the <code>() =></code> syntax in the example above are all ES2015 features. If you aren't familiar with ES2015, you can probably pick it up just by reading through sample code like this tutorial has. If you want, <a href="https://babeljs.io/docs/learn-es2015/" target="_blank">this page</a> has a good overview of ES2015 features.</p><p>The other unusual thing in this code example is <code><Text>Hello world!</Text></code>. This is JSX - a syntax for embedding XML within JavaScript. Many frameworks use a special templating language which lets you embed code inside markup language. In React, this is reversed. JSX lets you write your markup language inside code. It looks like HTML on the web, except instead of web things like <code><div></code> or <code><span></code>, you use React components. In this case, <code><Text></code>
|
||||
is a built-in component that just displays some text.</p><h2><a class="anchor" name="component-and-appregistry"></a>Component and AppRegistry <a class="hash-link" href="docs/tutorial.html#component-and-appregistry">#</a></h2><p>So this code is defining <code>HelloWorldApp</code>, a new <code>Component</code>, and it's registering it with the <code>AppRegistry</code>. When you're building a React Native app, you'll be making new components a lot. Anything you see on the screen is some sort of component. A component can be pretty simple - the only thing that's required is a <code>render</code> function which returns some JSX to render.</p><p>The <code>AppRegistry</code> just tells React Native which component is the root one for the whole application. You won't be thinking about <code>AppRegistry</code> a lot - there will probably just be one call to <code>AppRegistry.registerComponent</code> in your whole app. It's included in these examples so you can paste the whole thing into your <code>index.ios.js</code> or <code>index.android.js</code> file and get it running. If you have a project from Create React Native App, this is handled for you and it's not necessary to call AppRegistry in your code.</p><h2><a class="anchor" name="this-app-doesn-t-do-very-much"></a>This App Doesn't Do Very Much <a class="hash-link" href="docs/tutorial.html#this-app-doesn-t-do-very-much">#</a></h2><p>Good point. To make components do more interesting things, you need to <a href="docs/props.html" target="_blank">learn about Props</a>.</p></div><div class="docs-prevnext"><a class="docs-prev" href="docs/getting-started.html#content">← Prev</a><a class="docs-next" href="docs/props.html#content">Next →</a></div><p class="edit-page-block">You can <a target="_blank" href="https://github.com/facebook/react-native/blob/master/docs/Tutorial.md">edit the content above on GitHub</a> and send us a pull request!</p></div></section><footer class="nav-footer"><section class="sitemap"><a href="/react-native" class="nav-home"><img src="img/header_logo.png" alt="React Native" width="66" height="58"></a><div><h5><a href="docs/">Docs</a></h5><a href="docs/getting-started.html">Getting Started</a><a href="docs/tutorial.html">Tutorial</a><a href="docs/integration-with-existing-apps.html">Integration With Existing Apps</a><a href="docs/more-resources.html">More Resources</a></div><div><h5><a href="/react-native/support.html">Community</a></h5><a href="/react-native/showcase.html">Showcase</a><a href="http://www.meetup.com/topics/react-native/" target="_blank">Upcoming Events</a><a href="https://www.facebook.com/groups/react.native.community" target="_blank">Facebook Group</a><a href="https://twitter.com/reactnative" target="_blank">Twitter</a></div><div><h5><a href="/react-native/support.html">Help</a></h5><a href="http://stackoverflow.com/questions/tagged/react-native" target="_blank">Stack Overflow</a><a href="https://discord.gg/0ZcbPKXt5bZjGY5n">Reactiflux Chat</a><a href="/react-native/versions.html" target="_blank">Latest Releases</a><a href="https://react-native.canny.io/feature-requests" target="_blank">Feature Requests</a></div><div><h5>More</h5><a href="/react-native/blog">Blog</a><a href="https://github.com/facebook/react-native" target="_blank">GitHub</a><a href="http://facebook.github.io/react/" target="_blank">React</a></div></section><section class="newsletter"><div id="mc_embed_signup"><form action="//reactnative.us10.list-manage.com/subscribe/post?u=db0dd948e2b729ee62625b1a8&id=47cd41008f" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate><div id="mc_embed_signup_scroll"><label for="mce-EMAIL"><h5>Get the React Native Newsletter</h5></label><input type="email" value="" name="EMAIL" class="email" id="mce-EMAIL" placeholder="email address" required><div style="position:absolute;left:-5000px;" aria-hidden="true"><input type="text" name="b_db0dd948e2b729ee62625b1a8_47cd41008f" tabindex="-1" value=""></div><div class="clear"><input type="submit" value="Sign up" name="subscribe" id="mc-embedded-subscribe" class="button"></div></div></form></div></section><a href="https://code.facebook.com/projects/" target="_blank" class="fbOpenSource"><img src="img/oss_logo.png" alt="Facebook Open Source" width="170" height="45"></a><section class="copyright">Copyright © 2017 Facebook Inc.</section></footer></div><div id="fb-root"></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
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