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<html><head><meta charset="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1"/><title>Layout with Flexbox · React Native</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta property="og:title" content="Layout with Flexbox · React Native"/><meta property="og:type" content="website"/><meta property="og:url" content="https://facebook.github.io/react-native/index.html"/><meta property="og:description" content="A component can specify the layout of its children using the flexbox algorithm. Flexbox is designed to provide a consistent layout on different screen sizes."/><link rel="shortcut icon" href="/react-native/img/favicon.png"/><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/solarized-dark.min.css"/><link rel="alternate" type="application/atom+xml" href="https://facebook.github.io/blog/atom.xml" title="React Native Blog ATOM Feed"/><link rel="alternate" type="application/rss+xml" href="https://facebook.github.io/blog/feed.xml" title="React Native Blog RSS Feed"/><script type="text/javascript" src="https://snack.expo.io/embed.js"></script><script type="text/javascript" src="/react-native/js/codeblocks.js"></script><link rel="stylesheet" href="/react-native/css/main.css"/></head><body class="sideNavVisible"><div class="fixedHeaderContainer"><div class="headerWrapper wrapper"><header><a href="/react-native/"><img class="logo" src="/react-native/img/header_logo.png"/><h2 class="headerTitle">React Native</h2></a><a href="/react-native/versions.html"><h3>0.49</h3></a><div class="navigationWrapper navigationSlider"><nav class="slidingNav"><ul class="nav-site nav-site-internal"><li><a href="/react-native/docs/0.49/getting-started.html" target="_self">Docs</a></li><li><a href="/react-native/en/help.html" target="_self">Community</a></li><li><a href="/react-native/blog" target="_self">Blog</a></li><li class="navSearchWrapper reactNavSearchWrapper"><input type="text" id="search_input_react" placeholder="Search"/></li><li><a href="https://github.com/facebook/react-native" target="_self">GitHub</a></li><li><a href="https://reactjs.org/" target="_self">React</a></li></ul></nav></div></header></div></div><div class="navPusher"><div class="docMainWrapper wrapper"><div class="container docsNavContainer" id="docsNav"><nav class="toc"><div class="toggleNav"><section class="navWrapper wrapper"><div class="navBreadcrumb wrapper"><div class="navToggle" id="navToggler"><i></i></div><h2><i>›</i><span>The Basics</span></h2></div><div class="navGroups"><div class="navGroup navGroupActive"><h3>The Basics</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/getting-started.html">Getting Started</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/tutorial.html">Learn the Basics</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/props.html">Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/state.html">State</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/style.html">Style</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/height-and-width.html">Height and Width</a></li><li class="navListItem navListItemActive"><a class="navItem navItemActive" href="/react-native/docs/0.49/flexbox.html">Layout with Flexbox</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/handling-text-input.html">Handling Text Input</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/handling-touches.html">Handling Touches</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/using-a-scrollview.html">Using a ScrollView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/using-a-listview.html">Using List Views</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/network.html">Networking</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/more-resources.html">More Resources</a></li></ul></div><div class="navGroup navGroupActive"><h3>Guides</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/components-and-apis.html">Components and APIs</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/platform-specific-code.html">Platform Specific Code</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/navigation.html">Navigating Between Screens</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/images.html">Images</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/animations.html">Animations</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/accessibility.html">Accessibility</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/improvingux.html">Improving User Experience</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/timers.html">Timers</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/debugging.html">Debugging</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/performance.html">Performance</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/gesture-responder-system.html">Gesture Responder System</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/javascript-environment.html">JavaScript Environment</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/direct-manipulation.html">Direct Manipulation</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/colors.html">Color Reference</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/integration-with-existing-apps.html">Integration with Existing Apps</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/running-on-device.html">Running On Device</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/upgrading.html">Upgrading to new React Native versions</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/troubleshooting.html">Troubleshooting</a></li></ul></div><div class="navGroup navGroupActive"><h3>Guides (iOS)</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/native-modules-ios.html">Native Modules</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/native-components-ios.html">Native UI Components</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/linking-libraries-ios.html">Linking Libraries</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/running-on-simulator-ios.html">Running On Simulator</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/communication-ios.html">Communication between native and React Native</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/building-for-apple-tv.html">Building For TV Devices</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/app-extensions.html">App Extensions</a></li></ul></div><div class="navGroup navGroupActive"><h3>Guides (Android)</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/native-modules-android.html">Native Modules</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/native-components-android.html">Native UI Components</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/headless-js-android.html">Headless JS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/signed-apk-android.html">Generating Signed APK</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/android-building-from-source.html">Building React Native from source</a></li></ul></div><div class="navGroup navGroupActive"><h3>Contributing</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/contributing.html">How to Contribute</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/maintainers.html">What to Expect from Maintainers</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/testing.html">Testing your Changes</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/understanding-cli.html">Understanding the CLI</a></li></ul></div><div class="navGroup navGroupActive"><h3>Components</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/activityindicator.html">ActivityIndicator</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/button.html">Button</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/datepickerios.html">DatePickerIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/drawerlayoutandroid.html">DrawerLayoutAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/flatlist.html">FlatList</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/image.html">Image</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/keyboardavoidingview.html">KeyboardAvoidingView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/listview.html">ListView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/maskedviewios.html">MaskedViewIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/modal.html">Modal</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/navigatorios.html">NavigatorIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/picker.html">Picker</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/pickerios.html">PickerIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/progressbarandroid.html">ProgressBarAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/progressviewios.html">ProgressViewIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/refreshcontrol.html">RefreshControl</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/scrollview.html">ScrollView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/sectionlist.html">SectionList</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/segmentedcontrolios.html">SegmentedControlIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/slider.html">Slider</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/snapshotviewios.html">SnapshotViewIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/statusbar.html">StatusBar</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/switch.html">Switch</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/tabbarios.html">TabBarIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/tabbarios-item.html">TabBarIOS.Item</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/text.html">Text</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/textinput.html">TextInput</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/toolbarandroid.html">ToolbarAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/touchablehighlight.html">TouchableHighlight</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/touchablenativefeedback.html">TouchableNativeFeedback</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/touchableopacity.html">TouchableOpacity</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/touchablewithoutfeedback.html">TouchableWithoutFeedback</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/view.html">View</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/viewpagerandroid.html">ViewPagerAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/virtualizedlist.html">VirtualizedList</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/webview.html">WebView</a></li></ul></div><div class="navGroup navGroupActive"><h3>APIs</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/accessibilityinfo.html">AccessibilityInfo</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/actionsheetios.html">ActionSheetIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/alert.html">Alert</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/alertios.html">AlertIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/animated.html">Animated</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/appregistry.html">AppRegistry</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/appstate.html">AppState</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/asyncstorage.html">AsyncStorage</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/backandroid.html">BackAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/backhandler.html">BackHandler</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/cameraroll.html">CameraRoll</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/clipboard.html">Clipboard</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/datepickerandroid.html">DatePickerAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/dimensions.html">Dimensions</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/easing.html">Easing</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/geolocation.html">Geolocation</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/imageeditor.html">ImageEditor</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/imagepickerios.html">ImagePickerIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/imagestore.html">ImageStore</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/image-style-props.html">Image Style Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/interactionmanager.html">InteractionManager</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/keyboard.html">Keyboard</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/layout-props.html">Layout Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/layoutanimation.html">LayoutAnimation</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/linking.html">Linking</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/listviewdatasource.html">ListViewDataSource</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/netinfo.html">NetInfo</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/panresponder.html">PanResponder</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/permissionsandroid.html">PermissionsAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/pixelratio.html">PixelRatio</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/pushnotificationios.html">PushNotificationIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/settings.html">Settings</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/shadow-props.html">Shadow Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/share.html">Share</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/statusbarios.html">StatusBarIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/stylesheet.html">StyleSheet</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/systrace.html">Systrace</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/text-style-props.html">Text Style Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/timepickerandroid.html">TimePickerAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/toastandroid.html">ToastAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/transforms.html">Transforms</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/vibration.html">Vibration</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/vibrationios.html">VibrationIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.49/view-style-props.html">View Style Props</a></li></ul></div></div></section></div><script>
var toggler = document.getElementById('navToggler');
var nav = document.getElementById('docsNav');
toggler.onclick = function() {
nav.classList.toggle('docsSliderActive');
};
</script></nav></div><div class="container mainContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/facebook/react-native-website/blob/master/docs/flexbox.md" target="_blank">Edit</a><h1>Layout with Flexbox</h1></header><article><div><span><p>A component can specify the layout of its children using the flexbox algorithm. Flexbox is designed to provide a consistent layout on different screen sizes.</p>
<p>You will normally use a combination of <code>flexDirection</code>, <code>alignItems</code>, and <code>justifyContent</code> to achieve the right layout.</p>
<blockquote>
<p>Flexbox works the same way in React Native as it does in CSS on the web, with a few exceptions. The defaults are different, with <code>flexDirection</code> defaulting to <code>column</code> instead of <code>row</code>, and the <code>flex</code> parameter only supporting a single number.</p>
</blockquote>
<h4><a class="anchor" aria-hidden="true" name="flex-direction"></a><a href="#flex-direction" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Flex Direction</h4>
<p>Adding <code>flexDirection</code> to a component's <code>style</code> determines the <strong>primary axis</strong> of its layout. Should the children be organized horizontally (<code>row</code>) or vertically (<code>column</code>)? The default is <code>column</code>.</p>
<div class="web-player"><pre><code class="hljs css javascript"><span class="hljs-keyword">import</span> React, { Component } <span class="hljs-keyword">from</span> <span class="hljs-string">'react'</span>;
<span class="hljs-keyword">import</span> { AppRegistry, View } <span class="hljs-keyword">from</span> <span class="hljs-string">'react-native'</span>;
<span class="hljs-keyword">export</span> <span class="hljs-keyword">default</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">FlexDirectionBasics</span> <span class="hljs-keyword">extends</span> <span class="hljs-title">Component</span> </span>{
render() {
<span class="hljs-keyword">return</span> (
<span class="hljs-comment">// Try setting `flexDirection` to `column`.</span>
&lt;View style={{<span class="hljs-attr">flex</span>: <span class="hljs-number">1</span>, <span class="hljs-attr">flexDirection</span>: <span class="hljs-string">'row'</span>}}&gt;
&lt;View style={{width: 50, height: 50, backgroundColor: 'powderblue'}} /&gt;
&lt;View style={{width: 50, height: 50, backgroundColor: 'skyblue'}} /&gt;
&lt;View style={{width: 50, height: 50, backgroundColor: 'steelblue'}} /&gt;
&lt;/View&gt;
);
}
};
// skip this line if using Create React Native App
AppRegistry.registerComponent('AwesomeProject', () =&gt; FlexDirectionBasics);
</code></pre><iframe style="margin-top: 4" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.10.0/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20View%20%7D%20from%20'react-native'%3B%0A%0Aexport%20default%20class%20FlexDirectionBasics%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%2F%2F%20Try%20setting%20%60flexDirection%60%20to%20%60column%60.%0A%20%20%20%20%20%20%3CView%20style%3D%7B%7Bflex%3A%201%2C%20flexDirection%3A%20'row'%7D%7D%3E%0A%20%20%20%20%20%20%20%20%3CView%20style%3D%7B%7Bwidth%3A%2050%2C%20height%3A%2050%2C%20backgroundColor%3A%20'powderblue'%7D%7D%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CView%20style%3D%7B%7Bwidth%3A%2050%2C%20height%3A%2050%2C%20backgroundColor%3A%20'skyblue'%7D%7D%20%2F%3E%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%3C%2FView%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%3B%0A%0A%2F%2F%20skip%20this%20line%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent('AwesomeProject'%2C%20()%20%3D%3E%20FlexDirectionBasics)%3B%0A" frame-border="0"></iframe></div>
<h4><a class="anchor" aria-hidden="true" name="justify-content"></a><a href="#justify-content" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Justify Content</h4>
<p>Adding <code>justifyContent</code> to a component's style determines the <strong>distribution</strong> of children along the <strong>primary axis</strong>. Should children be distributed at the start, the center, the end, or spaced evenly? Available options are <code>flex-start</code>, <code>center</code>, <code>flex-end</code>, <code>space-around</code>, and <code>space-between</code>.</p>
<div class="web-player"><pre><code class="hljs css javascript"><span class="hljs-keyword">import</span> React, { Component } <span class="hljs-keyword">from</span> <span class="hljs-string">'react'</span>;
<span class="hljs-keyword">import</span> { AppRegistry, View } <span class="hljs-keyword">from</span> <span class="hljs-string">'react-native'</span>;
<span class="hljs-keyword">export</span> <span class="hljs-keyword">default</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">JustifyContentBasics</span> <span class="hljs-keyword">extends</span> <span class="hljs-title">Component</span> </span>{
render() {
<span class="hljs-keyword">return</span> (
<span class="hljs-comment">// Try setting `justifyContent` to `center`.</span>
<span class="hljs-comment">// Try setting `flexDirection` to `row`.</span>
&lt;View style={{
<span class="hljs-attr">flex</span>: <span class="hljs-number">1</span>,
<span class="hljs-attr">flexDirection</span>: <span class="hljs-string">'column'</span>,
<span class="hljs-attr">justifyContent</span>: <span class="hljs-string">'space-between'</span>,
}}&gt;
&lt;View style={{width: 50, height: 50, backgroundColor: 'powderblue'}} /&gt;
&lt;View style={{width: 50, height: 50, backgroundColor: 'skyblue'}} /&gt;
&lt;View style={{width: 50, height: 50, backgroundColor: 'steelblue'}} /&gt;
&lt;/View&gt;
);
}
};
// skip this line if using Create React Native App
AppRegistry.registerComponent('AwesomeProject', () =&gt; JustifyContentBasics);
</code></pre><iframe style="margin-top: 4" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.10.0/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20View%20%7D%20from%20'react-native'%3B%0A%0Aexport%20default%20class%20JustifyContentBasics%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%2F%2F%20Try%20setting%20%60justifyContent%60%20to%20%60center%60.%0A%20%20%20%20%20%20%2F%2F%20Try%20setting%20%60flexDirection%60%20to%20%60row%60.%0A%20%20%20%20%20%20%3CView%20style%3D%7B%7B%0A%20%20%20%20%20%20%20%20flex%3A%201%2C%0A%20%20%20%20%20%20%20%20flexDirection%3A%20'column'%2C%0A%20%20%20%20%20%20%20%20justifyContent%3A%20'space-between'%2C%0A%20%20%20%20%20%20%7D%7D%3E%0A%20%20%20%20%20%20%20%20%3CView%20style%3D%7B%7Bwidth%3A%2050%2C%20height%3A%2050%2C%20backgroundColor%3A%20'powderblue'%7D%7D%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CView%20style%3D%7B%7Bwidth%3A%2050%2C%20height%3A%2050%2C%20backgroundColor%3A%20'skyblue'%7D%7D%20%2F%3E%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%3C%2FView%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%3B%0A%0A%2F%2F%20skip%20this%20line%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent('AwesomeProject'%2C%20()%20%3D%3E%20JustifyContentBasics)%3B%0A" frame-border="0"></iframe></div>
<h4><a class="anchor" aria-hidden="true" name="align-items"></a><a href="#align-items" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Align Items</h4>
<p>Adding <code>alignItems</code> to a component's style determines the <strong>alignment</strong> of children along the <strong>secondary axis</strong> (if the primary axis is <code>row</code>, then the secondary is <code>column</code>, and vice versa). Should children be aligned at the start, the center, the end, or stretched to fill? Available options are <code>flex-start</code>, <code>center</code>, <code>flex-end</code>, and <code>stretch</code>.</p>
<blockquote>
<p>For <code>stretch</code> to have an effect, children must not have a fixed dimension along the secondary axis. In the following example, setting <code>alignItems: stretch</code> does nothing until the <code>width: 50</code> is removed from the children.</p>
</blockquote>
<div class="web-player"><pre><code class="hljs css javascript"><span class="hljs-keyword">import</span> React, { Component } <span class="hljs-keyword">from</span> <span class="hljs-string">'react'</span>;
<span class="hljs-keyword">import</span> { AppRegistry, View } <span class="hljs-keyword">from</span> <span class="hljs-string">'react-native'</span>;
<span class="hljs-keyword">export</span> <span class="hljs-keyword">default</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">AlignItemsBasics</span> <span class="hljs-keyword">extends</span> <span class="hljs-title">Component</span> </span>{
render() {
<span class="hljs-keyword">return</span> (
<span class="hljs-comment">// Try setting `alignItems` to 'flex-start'</span>
<span class="hljs-comment">// Try setting `justifyContent` to `flex-end`.</span>
<span class="hljs-comment">// Try setting `flexDirection` to `row`.</span>
&lt;View style={{
<span class="hljs-attr">flex</span>: <span class="hljs-number">1</span>,
<span class="hljs-attr">flexDirection</span>: <span class="hljs-string">'column'</span>,
<span class="hljs-attr">justifyContent</span>: <span class="hljs-string">'center'</span>,
<span class="hljs-attr">alignItems</span>: <span class="hljs-string">'center'</span>,
}}&gt;
&lt;View style={{width: 50, height: 50, backgroundColor: 'powderblue'}} /&gt;
&lt;View style={{width: 50, height: 50, backgroundColor: 'skyblue'}} /&gt;
&lt;View style={{width: 50, height: 50, backgroundColor: 'steelblue'}} /&gt;
&lt;/View&gt;
);
}
};
// skip this line if using Create React Native App
AppRegistry.registerComponent('AwesomeProject', () =&gt; AlignItemsBasics);
</code></pre><iframe style="margin-top: 4" width="880" height="420" data-src="//cdn.rawgit.com/dabbott/react-native-web-player/gh-v1.10.0/index.html#code=import%20React%2C%20%7B%20Component%20%7D%20from%20'react'%3B%0Aimport%20%7B%20AppRegistry%2C%20View%20%7D%20from%20'react-native'%3B%0A%0Aexport%20default%20class%20AlignItemsBasics%20extends%20Component%20%7B%0A%20%20render()%20%7B%0A%20%20%20%20return%20(%0A%20%20%20%20%20%20%2F%2F%20Try%20setting%20%60alignItems%60%20to%20'flex-start'%0A%20%20%20%20%20%20%2F%2F%20Try%20setting%20%60justifyContent%60%20to%20%60flex-end%60.%0A%20%20%20%20%20%20%2F%2F%20Try%20setting%20%60flexDirection%60%20to%20%60row%60.%0A%20%20%20%20%20%20%3CView%20style%3D%7B%7B%0A%20%20%20%20%20%20%20%20flex%3A%201%2C%0A%20%20%20%20%20%20%20%20flexDirection%3A%20'column'%2C%0A%20%20%20%20%20%20%20%20justifyContent%3A%20'center'%2C%0A%20%20%20%20%20%20%20%20alignItems%3A%20'center'%2C%0A%20%20%20%20%20%20%7D%7D%3E%0A%20%20%20%20%20%20%20%20%3CView%20style%3D%7B%7Bwidth%3A%2050%2C%20height%3A%2050%2C%20backgroundColor%3A%20'powderblue'%7D%7D%20%2F%3E%0A%20%20%20%20%20%20%20%20%3CView%20style%3D%7B%7Bwidth%3A%2050%2C%20height%3A%2050%2C%20backgroundColor%3A%20'skyblue'%7D%7D%20%2F%3E%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%3C%2FView%3E%0A%20%20%20%20)%3B%0A%20%20%7D%0A%7D%3B%0A%0A%2F%2F%20skip%20this%20line%20if%20using%20Create%20React%20Native%20App%0AAppRegistry.registerComponent('AwesomeProject'%2C%20()%20%3D%3E%20AlignItemsBasics)%3B%0A" frame-border="0"></iframe></div>
<h4><a class="anchor" aria-hidden="true" name="going-deeper"></a><a href="#going-deeper" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Going Deeper</h4>
<p>We've covered the basics, but there are many other styles you may need for layouts. The full list of props that control layout is documented <a href="/react-native/docs/0.49/layout-props.html">here</a>.</p>
<p>We're getting close to being able to build a real application. One thing we are still missing is a way to take user input, so let's move on to <a href="/react-native/docs/0.49/handling-text-input.html">learn how to handle text input with the TextInput component</a>.</p>
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