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<html><head><meta charset="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1"/><title>Improving User Experience · React Native</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta property="og:title" content="Improving User Experience · 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="Building apps for mobile platforms is nuanced, there are many little details that developers coming from a web background often do not consider. This guide is intended to explain some of these nuances and demonstrate how you might factor them in to your application."/><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>next</h3></a><div class="navigationWrapper navigationSlider"><nav class="slidingNav"><ul class="nav-site nav-site-internal"><li><a href="/react-native/docs/next/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>Guides</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/next/getting-started.html">Getting Started</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/tutorial.html">Learn the Basics</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/props.html">Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/state.html">State</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/style.html">Style</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/height-and-width.html">Height and Width</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/flexbox.html">Layout with Flexbox</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/handling-text-input.html">Handling Text Input</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/handling-touches.html">Handling Touches</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/using-a-scrollview.html">Using a ScrollView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/using-a-listview.html">Using List Views</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/network.html">Networking</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/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/next/components-and-apis.html">Components and APIs</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/platform-specific-code.html">Platform Specific Code</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/navigation.html">Navigating Between Screens</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/images.html">Images</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/animations.html">Animations</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/accessibility.html">Accessibility</a></li><li class="navListItem navListItemActive"><a class="navItem navItemActive" href="/react-native/docs/next/improvingux.html">Improving User Experience</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/timers.html">Timers</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/debugging.html">Debugging</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/performance.html">Performance</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/gesture-responder-system.html">Gesture Responder System</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/javascript-environment.html">JavaScript Environment</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/direct-manipulation.html">Direct Manipulation</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/colors.html">Color Reference</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/integration-with-existing-apps.html">Integration with Existing Apps</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/running-on-device.html">Running On Device</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/upgrading.html">Upgrading to new React Native versions</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/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/next/native-modules-ios.html">Native Modules</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/native-components-ios.html">Native UI Components</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/linking-libraries-ios.html">Linking Libraries</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/running-on-simulator-ios.html">Running On Simulator</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/communication-ios.html">Communication between native and React Native</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/building-for-apple-tv.html">Building For Apple TV</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/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/next/native-modules-android.html">Native Modules</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/native-components-android.html">Native UI Components</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/headless-js-android.html">Headless JS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/signed-apk-android.html">Generating Signed APK</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/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/next/contributing.html">How to Contribute</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/maintainers.html">What to Expect from Maintainers</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/testing.html">Testing your Changes</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/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/next/activityindicator.html">ActivityIndicator</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/button.html">Button</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/datepickerios.html">DatePickerIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/drawerlayoutandroid.html">DrawerLayoutAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/flatlist.html">FlatList</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/image.html">Image</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/keyboardavoidingview.html">KeyboardAvoidingView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/listview.html">ListView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/maskedviewios.html">MaskedViewIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/modal.html">Modal</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/navigatorios.html">NavigatorIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/picker.html">Picker</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/pickerios.html">PickerIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/progressbarandroid.html">ProgressBarAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/progressviewios.html">ProgressViewIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/refreshcontrol.html">RefreshControl</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/scrollview.html">ScrollView</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/sectionlist.html">SectionList</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/segmentedcontrolios.html">SegmentedControlIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/slider.html">Slider</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/snapshotviewios.html">SnapshotViewIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/statusbar.html">StatusBar</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/switch.html">Switch</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/tabbarios.html">TabBarIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/tabbarios-item.html">TabBarIOS.Item</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/text.html">Text</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/textinput.html">TextInput</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/toolbarandroid.html">ToolbarAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/touchablehighlight.html">TouchableHighlight</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/touchablenativefeedback.html">TouchableNativeFeedback</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/touchableopacity.html">TouchableOpacity</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/touchablewithoutfeedback.html">TouchableWithoutFeedback</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/view.html">View</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/viewpagerandroid.html">ViewPagerAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/virtualizedlist.html">VirtualizedList</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/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/next/accessibilityinfo.html">AccessibilityInfo</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/actionsheetios.html">ActionSheetIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/alert.html">Alert</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/alertios.html">AlertIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/animated.html">Animated</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/appregistry.html">AppRegistry</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/appstate.html">AppState</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/asyncstorage.html">AsyncStorage</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/backandroid.html">BackAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/backhandler.html">BackHandler</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/cameraroll.html">CameraRoll</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/clipboard.html">Clipboard</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/datepickerandroid.html">DatePickerAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/dimensions.html">Dimensions</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/easing.html">Easing</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/geolocation.html">Geolocation</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/imageeditor.html">ImageEditor</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/imagepickerios.html">ImagePickerIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/imagestore.html">ImageStore</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/image-style-props.html">Image Style Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/interactionmanager.html">InteractionManager</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/keyboard.html">Keyboard</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/layout-props.html">Layout Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/layoutanimation.html">LayoutAnimation</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/linking.html">Linking</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/listviewdatasource.html">ListViewDataSource</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/netinfo.html">NetInfo</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/panresponder.html">PanResponder</a></li><li class="navListItem"><a class="navItem" 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toggler.onclick = function() {
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</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/improvingux.md" target="_blank">Edit</a><h1>Improving User Experience</h1></header><article><div><span><p>Building apps for mobile platforms is nuanced, there are many little details that developers coming from a web background often do not consider. This guide is intended to explain some of these nuances and demonstrate how you might factor them in to your application.</p>
<blockquote>
<p>We are improving and adding more details to this page. If you'd like to help out, chime in at <a href="https://github.com/facebook/react-native/issues/14979">react-native/14979</a>.</p>
</blockquote>
<h2><a class="anchor" aria-hidden="true" name="topics-index"></a><a href="#topics-index" 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>Topics index</h2>
<ul>
<li><a href="#configure-text-inputs">Configure text inputs</a></li>
<li><a href="#manage-layout-when-keyboard-is-visible">Manage layout when keyboard is visible</a></li>
<li><a href="#make-tappable-areas-larger">Make tappable areas larger</a></li>
<li><a href="#use-android-ripple">Use Android Ripple</a></li>
<li><a href="#learn-more">Learn More</a></li>
</ul>
<hr>
<h2><a class="anchor" aria-hidden="true" name="configure-text-inputs"></a><a href="#configure-text-inputs" 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>Configure text inputs</h2>
<p>Entering text on touch phone is a challange - small screen, software keyboard. But based on what kind of data you need, you can make it easier by properly configuring the text inputs:</p>
<ul>
<li>Focus the first field automatically</li>
<li>Use placeholder text as an example of expected data format</li>
<li>Enable or disable autocapitalization and autocorrect</li>
<li>Choose keyboard type (e.g. email, numeric)</li>
<li>Make sure the return button focuses the next field or submits the form</li>
</ul>
<p>Check out <a href="/react-native/docs/next/textinput.html"><code>TextInput</code> docs</a> for more configuration options.</p>
<video src="/react-native/img/textinput.mp4" autoplay loop width="320" height="430"></video>
<p><a href="https://snack.expo.io/H1iGt2vSW">Try it on your phone</a></p>
<h2><a class="anchor" aria-hidden="true" name="manage-layout-when-keyboard-is-visible"></a><a href="#manage-layout-when-keyboard-is-visible" 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>Manage layout when keyboard is visible</h2>
<p>Software keyboard takes almost half of the screen. If you have interactive elements that can get covered by the keyboard, make sure they are still accessible by using the <a href="/react-native/docs/next/keyboardavoidingview.html"><code>KeyboardAvoidingView</code> component</a>.</p>
<video src="/react-native/img/keyboardavoidingview.mp4" autoplay loop width="320" height="448"></video>
<p><a href="https://snack.expo.io/ryxRkwnrW">Try it on your phone</a></p>
<h2><a class="anchor" aria-hidden="true" name="make-tappable-areas-larger"></a><a href="#make-tappable-areas-larger" 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>Make tappable areas larger</h2>
<p>On mobile phones it's hard to be very precise when pressing buttons. Make sure all interactive elements are 44x44 or larger. One way to do this is to leave enough space for the element, <code>padding</code>, <code>minWidth</code> and <code>minHeight</code> style values can be useful for that. Alternatively, you can use <a href="/react-native/docs/next/touchablewithoutfeedback.html#hitslop"><code>hitSlop</code> prop</a> to increase interactive area without affecting the layout. Here's a demo:</p>
<video src="/react-native/img/hitslop.mp4" autoplay loop width="320" height="120"></video>
<p><a href="https://snack.expo.io/rJPwCt4HZ">Try it on your phone</a></p>
<h2><a class="anchor" aria-hidden="true" name="use-android-ripple"></a><a href="#use-android-ripple" 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>Use Android Ripple</h2>
<p>Android API 21+ uses the material design ripple to provide user with feedback when they touch an interactable area on the screen. React Native exposes this through the <a href="/react-native/docs/next/touchablenativefeedback.html"><code>TouchableNativeFeedback</code> component</a>. Using this touchable effect instead of opacity or highlight will often make your app feel much more fitting on the platform. That said, you need to be careful when using it because it doesn't work on iOS or on Android API &lt; 21, so you will need to fallback to using one of the other Touchable components on iOS. You can use a library like <a href="https://github.com/react-community/react-native-platform-touchable">react-native-platform-touchable</a> to handle the platform differences for you.</p>
<video src="/react-native/img/ripple.mp4" autoplay loop width="320"></video>
<p><a href="https://snack.expo.io/SJywqe3rZ">Try it on your phone</a></p>
<h2><a class="anchor" aria-hidden="true" name="screen-orientation-lock"></a><a href="#screen-orientation-lock" 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>Screen orientation lock</h2>
<p>Unless supporting both, it is considered good practice to lock the screen orientation to either portrait or landscape. On iOS, in the General tab and Deployment Info section of Xcode enable the Device Orientation you want to support (ensure you have selected iPhone from the Devices menu when making the changes). For Android, open the AndroidManifest.xml file and within the activity element add 'android:screenOrientation=”portrait”' to lock to portrait or 'android:screenOrientation=”landscape”' to lock to landscape.</p>
<h1><a class="anchor" aria-hidden="true" name="learn-more"></a><a href="#learn-more" 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>Learn more</h1>
<p><a href="https://material.io/">Material Design</a> and <a href="https://developer.apple.com/ios/human-interface-guidelines/overview/design-principles/">Human Interface Guidelines</a> are great resources for learning more about designing for mobile platforms.</p>
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