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<!DOCTYPE html><html><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><title>Layout with Flexbox – React Native | A framework for building native apps using React</title><meta name="viewport" content="width=device-width"><meta property="og:title" content="Layout with Flexbox – React Native | A framework for building native apps using React"><meta property="og:type" content="website"><meta property="og:url" content="http://facebook.github.io/react-native/index.html"><meta property="og:image" content="http://facebook.github.io/react-native/img/opengraph.png?2"><meta property="og:description" content="A framework for building native apps using React"><base href="/react-native/"><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"><link rel="shortcut icon" href="img/favicon.png?2"><link rel="stylesheet" href="css/react-native.css"><script type="text/javascript" src="//use.typekit.net/vqa1hcx.js"></script><script type="text/javascript">try{Typekit.load();}catch(e){}</script></head><body><div class="container"><div class="nav-main"><div class="wrap"><a class="nav-home" href=""><img src="img/header_logo.png">React Native</a><a class="nav-version" href="/react-native/versions.html">0.33</a><div class="nav-site-wrapper"><ul class="nav-site nav-site-internal"><li><a href="docs/getting-started.html" class="active" data-target=".nav-docs">Docs</a></li><li><a href="support.html" class="">Support</a></li><li><a href="showcase.html" class="">Showcase</a></li><li><a href="blog/" class="">Blog</a></li></ul><div class="algolia-search-wrapper"><input id="algolia-doc-search" tabindex="0" type="text" placeholder="Search docs..."></div><ul class="nav-site nav-site-external"><li><a href="https://github.com/facebook/react-native" class="">GitHub</a></li><li><a href="http://facebook.github.io/react" class="">React</a></li></ul></div></div></div><section class="content wrap documentationContent"><div class="nav-docs"><div class="nav-docs-viewport"><div class="nav-docs-section"><h3>The Basics</h3><ul><li><a style="margin-left:0;" class="" href="docs/getting-started.html">Getting Started</a></li><li><a style="margin-left:0;" class="" href="docs/tutorial.html">Tutorial</a></li><li><a style="margin-left:0;" class="" href="docs/props.html">Props</a></li><li><a style="margin-left:0;" class="" href="docs/state.html">State</a></li><li><a style="margin-left:0;" class="" href="docs/style.html">Style</a></li><li><a style="margin-left:0;" class="" href="docs/height-and-width.html">Height and Width</a></li><li><a style="margin-left:0;" class="active" href="docs/flexbox.html">Layout with Flexbox</a></li><li><a style="margin-left:0;" class="" href="docs/handling-text-input.html">Handling Text Input</a></li><li><a style="margin-left:0;" class="" href="docs/using-a-scrollview.html">Using a ScrollView</a></li><li><a style="margin-left:0;" class="" href="docs/using-a-listview.html">Using a ListView</a></li><li><a style="margin-left:0;" class="" href="docs/network.html">Networking</a></li><li><a style="margin-left:0;" class="" href="docs/using-navigators.html">Using Navigators</a></li><li><a style="margin-left:0;" class="" href="docs/more-resources.html">More Resources</a></li></ul></div><div class="nav-docs-section"><h3>Guides</h3><ul><li><a style="margin-left:0;" class="" href="docs/integration-with-existing-apps.html">Integration With Existing Apps</a></li><li><a style="margin-left:0;" class="" href="docs/colors.html">Colors</a></li><li><a style="margin-left:0;" class="" href="docs/images.html">Images</a></li><li><a style="margin-left:0;" class="" href="docs/handling-touches.html">Handling Touches</a></li><li><a style="margin-left:0;" class="" href="docs/animations.html">Animations</a></li><li><a style="margin-left:0;" class="" href="docs/accessibility.html">Accessibility</a></li><li><a style="margin-left:0;" class="" href="docs/timers.html">Timers</a></li><li><a style="margin-left:0;" class="" href="docs/direct-manipulation.html">Direct Manipulation</a></li><li><a style="margin-left:0;" class="" href="docs/debugging.html">Debugging</a></li><li><a style="margin-left:0;" class="" href="docs/testing.html">Testing</a></li><li><a style="margin-left:0;" class="" href="docs/javascript-environment.html">JavaScript Environment</a></li><li><a style="margin-left:0;" class="" href="docs/navigation.html">Navigation</a></li><li><a style="margin-left:0;" class="" href="docs/performance.html">Performance</a></li><li><a style="margin-left:0;" class="" href="docs/upgrading.html">Upgrading</a></li><li><a style="margin-left:0;" class="" href="docs/platform-specific-code.html">Platform Specific Code</a></li><li><a style="margin-left:0;" class="" href="docs/gesture-responder-system.html">Gesture Responder System</a></li></ul></div><div class="nav-docs-section"><h3>Guides (iOS)</h3><ul><li><a style="margin-left:0;" class="" href="docs/native-modules-ios.html">Native Modules</a></li><li><a style="margin-left:0;" class="" href="docs/native-components-ios.html">Native UI Components</a></li><li><a style="margin-left:0;" class="" href="docs/linking-libraries-ios.html">Linking Libraries</a></li><li><a style="margin-left:0;" class="" href="docs/running-on-device-ios.html">Running On Device</a></li><li><a style="margin-left:0;" class="" href="docs/running-on-simulator-ios.html">Running On Simulator</a></li><li><a style="margin-left:0;" class="" href="docs/communication-ios.html">Communication between native and React Native</a></li></ul></div><div class="nav-docs-section"><h3>Guides (Android)</h3><ul><li><a style="margin-left:0;" class="" href="docs/native-modules-android.html">Native Modules</a></li><li><a style="margin-left:0;" class="" href="docs/native-components-android.html">Native UI Components</a></li><li><a style="margin-left:0;" class="" href="docs/running-on-device-android.html">Running On Device</a></li><li><a style="margin-left:0;" class="" href="docs/signed-apk-android.html">Generating Signed APK</a></li><li><a style="margin-left:0;" class="" href="docs/android-ui-performance.html">Profiling Android UI Performance</a></li><li><a style="margin-left:0;" class="" href="docs/android-building-from-source.html">Building React Native from source</a></li></ul></div><div class="nav-docs-section"><h3>components</h3><ul><li><a style="margin-left:0;" class="" href="docs/activityindicator.html">ActivityIndicator</a></li><li><a style="margin-left:0;" class="" href="docs/activityindicatorios.html">ActivityIndicatorIOS</a></li><li><a style="margin-left:0;" class="" href="docs/datepickerios.html">DatePickerIOS</a></li><li><a style="margin-left:0;" class="" href="docs/drawerlayoutandroid.html">DrawerLayoutAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/image.html">Image</a></li><li><a style="margin-left:0;" class="" href="docs/listview.html">ListView</a></li><li><a style="margin-left:0;" class="" href="docs/mapview.html">MapView</a></li><li><a style="margin-left:0;" class="" href="docs/modal.html">Modal</a></li><li><a style="margin-left:0;" class="" href="docs/navigator.html">Navigator</a></li><li><a style="margin-left:0;" class="" href="docs/navigatorios.html">NavigatorIOS</a></li><li><a style="margin-left:0;" class="" href="docs/picker.html">Picker</a></li><li><a style="margin-left:0;" class="" href="docs/pickerios.html">PickerIOS</a></li><li><a style="margin-left:0;" class="" href="docs/progressbarandroid.html">ProgressBarAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/progressviewios.html">ProgressViewIOS</a></li><li><a style="margin-left:0;" class="" href="docs/refreshcontrol.html">RefreshControl</a></li><li><a style="margin-left:0;" class="" href="docs/scrollview.html">ScrollView</a></li><li><a style="margin-left:0;" class="" href="docs/segmentedcontrolios.html">SegmentedControlIOS</a></li><li><a style="margin-left:0;" class="" href="docs/slider.html">Slider</a></li><li><a style="margin-left:0;" class="" href="docs/sliderios.html">SliderIOS</a></li><li><a style="margin-left:0;" class="" href="docs/statusbar.html">StatusBar</a></li><li><a style="margin-left:0;" class="" href="docs/snapshotviewios.html">SnapshotViewIOS</a></li><li><a style="margin-left:0;" class="" href="docs/switch.html">Switch</a></li><li><a style="margin-left:0;" class="" href="docs/switchandroid.html">SwitchAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/switchios.html">SwitchIOS</a></li><li><a style="margin-left:0;" class="" href="docs/tabbarios.html">TabBarIOS</a></li><li><a style="margin-left:0;" class="" href="docs/tabbarios-item.html">TabBarIOS.Item</a></li><li><a style="margin-left:0;" class="" href="docs/text.html">Text</a></li><li><a style="margin-left:0;" class="" href="docs/textinput.html">TextInput</a></li><li><a style="margin-left:0;" class="" href="docs/toolbarandroid.html">ToolbarAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/touchablehighlight.html">TouchableHighlight</a></li><li><a style="margin-left:0;" class="" href="docs/touchablenativefeedback.html">TouchableNativeFeedback</a></li><li><a style="margin-left:0;" class="" href="docs/touchableopacity.html">TouchableOpacity</a></li><li><a style="margin-left:0;" class="" href="docs/touchablewithoutfeedback.html">TouchableWithoutFeedback</a></li><li><a style="margin-left:0;" class="" href="docs/view.html">View</a></li><li><a style="margin-left:0;" class="" href="docs/viewpagerandroid.html">ViewPagerAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/webview.html">WebView</a></li></ul></div><div class="nav-docs-section"><h3>apis</h3><ul><li><a style="margin-left:0;" class="" href="docs/actionsheetios.html">ActionSheetIOS</a></li><li><a style="margin-left:0;" class="" href="docs/adsupportios.html">AdSupportIOS</a></li><li><a style="margin-left:0;" class="" href="docs/alert.html">Alert</a></li><li><a style="margin-left:0;" class="" href="docs/alertios.html">AlertIOS</a></li><li><a style="margin-left:0;" class="" href="docs/animated.html">Animated</a></li><li><a style="margin-left:0;" class="" href="docs/appregistry.html">AppRegistry</a></li><li><a style="margin-left:0;" class="" href="docs/appstate.html">AppState</a></li><li><a style="margin-left:0;" class="" href="docs/asyncstorage.html">AsyncStorage</a></li><li><a style="margin-left:0;" class="" href="docs/backandroid.html">BackAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/cameraroll.html">CameraRoll</a></li><li><a style="margin-left:0;" class="" href="docs/clipboard.html">Clipboard</a></li><li><a style="margin-left:0;" class="" href="docs/datepickerandroid.html">DatePickerAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/dimensions.html">Dimensions</a></li><li><a style="margin-left:0;" class="" href="docs/easing.html">Easing</a></li><li><a style="margin-left:0;" class="" href="docs/geolocation.html">Geolocation</a></li><li><a style="margin-left:0;" class="" href="docs/imageeditor.html">ImageEditor</a></li><li><a style="margin-left:0;" class="" href="docs/imagepickerios.html">ImagePickerIOS</a></li><li><a style="margin-left:0;" class="" href="docs/imagestore.html">ImageStore</a></li><li><a style="margin-left:0;" class="" href="docs/intentandroid.html">IntentAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/interactionmanager.html">InteractionManager</a></li><li><a style="margin-left:0;" class="" href="docs/layoutanimation.html">LayoutAnimation</a></li><li><a style="margin-left:0;" class="" href="docs/linking.html">Linking</a></li><li><a style="margin-left:0;" class="" href="docs/nativemethodsmixin.html">NativeMethodsMixin</a></li><li><a style="margin-left:0;" class="" href="docs/nativemodules.html">NativeModules</a></li><li><a style="margin-left:0;" class="" href="docs/netinfo.html">NetInfo</a></li><li><a style="margin-left:0;" class="" href="docs/panresponder.html">PanResponder</a></li><li><a style="margin-left:0;" class="" href="docs/permissionsandroid.html">PermissionsAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/pixelratio.html">PixelRatio</a></li><li><a style="margin-left:0;" class="" href="docs/pushnotificationios.html">PushNotificationIOS</a></li><li><a style="margin-left:0;" class="" href="docs/settings.html">Settings</a></li><li><a style="margin-left:0;" class="" href="docs/statusbarios.html">StatusBarIOS</a></li><li><a style="margin-left:0;" class="" href="docs/stylesheet.html">StyleSheet</a></li><li><a style="margin-left:0;" class="" href="docs/systrace.html">Systrace</a></li><li><a style="margin-left:0;" class="" href="docs/timepickerandroid.html">TimePickerAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/toastandroid.html">ToastAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/vibration.html">Vibration</a></li><li><a style="margin-left:0;" class="" href="docs/vibrationios.html">VibrationIOS</a></li><li><a style="margin-left:0;" class="" href="docs/layout-props.html">Layout Props</a></li><li><a style="margin-left:0;" class="" href="docs/shadow-props.html">Shadow Props</a></li></ul></div></div></div><div class="inner-content"><a id="content"></a><h1><a class="anchor" name="layout-with-flexbox"></a>Layout with Flexbox <a class="hash-link" href="docs/flexbox.html#layout-with-flexbox">#</a></h1><div><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 <code>alignItems</code> defaulting to <code>stretch</code> instead of <code>flex-start</code>, and the <code>flex</code> parameter only supports a single number.</p></blockquote><h4><a class="anchor" name="flex-direction"></a>Flex Direction <a class="hash-link" href="docs/flexbox.html#flex-direction">#</a></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"><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> from <span class="token string">'react-native'</span><span class="token punctuation">;</span>
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class <span class="token class-name">FlexDirectionBasics</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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<span class="token comment" spellcheck="true"> // Try setting `flexDirection` to `column`.
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</span> <View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>flex<span class="token punctuation">:</span> <span class="token number">1</span><span class="token punctuation">,</span> flexDirection<span class="token punctuation">:</span> <span class="token string">'row'</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">></span>
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<View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>width<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> backgroundColor<span class="token punctuation">:</span> <span class="token string">'powderblue'</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
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<View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>width<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> backgroundColor<span class="token punctuation">:</span> <span class="token string">'skyblue'</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
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<View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>width<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> backgroundColor<span class="token punctuation">:</span> <span class="token string">'steelblue'</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
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<<span class="token operator">/</span>View<span class="token operator">></span>
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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><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">'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> FlexDirectionBasics<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//npmcdn.com/react-native-web-player@1.1.0/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%0Aclass%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%0AAppRegistry.registerComponent('AwesomeProject'%2C%20()%20%3D%3E%20FlexDirectionBasics)%3B" frameborder="0"></iframe></div><h4><a class="anchor" name="justify-content"></a>Justify Content <a class="hash-link" href="docs/flexbox.html#justify-content">#</a></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"><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> from <span class="token string">'react-native'</span><span class="token punctuation">;</span>
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class <span class="token class-name">JustifyContentBasics</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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<span class="token comment" spellcheck="true"> // Try setting `justifyContent` to `center`.
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</span> <span class="token comment" spellcheck="true"> // Try setting `flexDirection` to `row`.
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</span> <View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>
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flex<span class="token punctuation">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
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flexDirection<span class="token punctuation">:</span> <span class="token string">'column'</span><span class="token punctuation">,</span>
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justifyContent<span class="token punctuation">:</span> <span class="token string">'space-between'</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>
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<View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>width<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> backgroundColor<span class="token punctuation">:</span> <span class="token string">'powderblue'</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
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<View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>width<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> backgroundColor<span class="token punctuation">:</span> <span class="token string">'skyblue'</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
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<View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>width<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> backgroundColor<span class="token punctuation">:</span> <span class="token string">'steelblue'</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
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<<span class="token operator">/</span>View<span class="token operator">></span>
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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><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">'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> JustifyContentBasics<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//npmcdn.com/react-native-web-player@1.1.0/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%0Aclass%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%0AAppRegistry.registerComponent('AwesomeProject'%2C%20()%20%3D%3E%20JustifyContentBasics)%3B" frameborder="0"></iframe></div><h4><a class="anchor" name="align-items"></a>Align Items <a class="hash-link" href="docs/flexbox.html#align-items">#</a></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"><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> 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">AlignItemsBasics</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>
|
||
<span class="token comment" spellcheck="true"> // Try setting `alignItems` to 'flex-start'
|
||
</span> <span class="token comment" spellcheck="true"> // Try setting `justifyContent` to `flex-end`.
|
||
</span> <span class="token comment" spellcheck="true"> // Try setting `flexDirection` to `row`.
|
||
</span> <View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>
|
||
flex<span class="token punctuation">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
|
||
flexDirection<span class="token punctuation">:</span> <span class="token string">'column'</span><span class="token punctuation">,</span>
|
||
justifyContent<span class="token punctuation">:</span> <span class="token string">'center'</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 punctuation">}</span><span class="token operator">></span>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>width<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> backgroundColor<span class="token punctuation">:</span> <span class="token string">'powderblue'</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>width<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> backgroundColor<span class="token punctuation">:</span> <span class="token string">'skyblue'</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
|
||
<View style<span class="token operator">=</span><span class="token punctuation">{</span><span class="token punctuation">{</span>width<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> height<span class="token punctuation">:</span> <span class="token number">50</span><span class="token punctuation">,</span> backgroundColor<span class="token punctuation">:</span> <span class="token string">'steelblue'</span><span class="token punctuation">}</span><span class="token punctuation">}</span> <span class="token operator">/</span><span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<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><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> AlignItemsBasics<span class="token punctuation">)</span><span class="token punctuation">;</span></div><iframe style="margin-top:4px;" width="880" height="420" data-src="//npmcdn.com/react-native-web-player@1.1.0/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%0Aclass%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%0AAppRegistry.registerComponent('AwesomeProject'%2C%20()%20%3D%3E%20AlignItemsBasics)%3B" frameborder="0"></iframe></div><h4><a class="anchor" name="going-deeper"></a>Going Deeper <a class="hash-link" href="docs/flexbox.html#going-deeper">#</a></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="./docs/layout-props.html" target="_blank">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/handling-text-input.html" target="">learn how to handle text input with the TextInput component</a>.</p></div><div class="docs-prevnext"><a class="docs-prev" href="docs/height-and-width.html#content">← Prev</a><a class="docs-next" href="docs/handling-text-input.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/LayoutWithFlexbox.md">edit the content above on GitHub</a> and send us a pull request!</p><div class="survey"><div class="survey-image"></div><p>Recently, we have been working hard to make the documentation better based on your feedback. Your responses to this yes/no style survey will help us gauge whether we moved in the right direction with the improvements. Thank you!</p><center><a class="button" href="https://www.facebook.com/survey?oid=516954245168428">Take Survey</a></center></div></div></section><footer class="wrap"><div class="center">© 2016 Facebook Inc.</div></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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