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151 lines
45 KiB
HTML
<!DOCTYPE html><html><head><title>ScrollView</title><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><meta name="viewport" content="width=device-width"><meta property="fb:app_id" content="1677033832619985"><meta property="fb:admins" content="121800083"><meta property="og:site_name" content="React Native"><meta property="og:title" content="ScrollView"><meta property="og:url" content="https://facebook.github.io/react-native/index.html"><meta property="og:image" content="https://facebook.github.io/react-native/img/opengraph.png"><meta property="og:description" content="A framework for building native apps using React"><meta name="twitter:site" content="@reactnative"><meta name="twitter:card" content="summary_large_image"><meta property="og:type" content="website"><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"><link rel="alternate" type="application/rss+xml" title="React Native Blog" href="https://facebook.github.io/react-native/blog/feed.xml"><link href="//cdn-images.mailchimp.com/embedcode/horizontal-slim-10_7.css" rel="stylesheet" type="text/css"><script type="text/javascript" src="//use.typekit.net/vqa1hcx.js"></script><script type="text/javascript">try{Typekit.load();}catch(e){}</script></head><body><script>window.fbAsyncInit = function() {FB.init({appId:'1677033832619985',xfbml:true,version:'v2.7'});};(function(d, s, id){var js, fjs = d.getElementsByTagName(s)[0];if (d.getElementById(id)) {return;}js = d.createElement(s); js.id = id;js.src = '//connect.facebook.net/en_US/sdk.js';fjs.parentNode.insertBefore(js, fjs);}(document, 'script','facebook-jssdk'));</script><script>window.twttr=(function(d,s, id){var js,fjs=d.getElementsByTagName(s)[0],t=window.twttr||{};if(d.getElementById(id))return t;js=d.createElement(s);js.id=id;js.src='https://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js, fjs);t._e = [];t.ready = function(f) {t._e.push(f);};return t;}(document, 'script', 'twitter-wjs'));</script><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">0.45</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="/react-native/support.html" class="">Help</a></li><li><a href="/react-native/showcase.html" class="">Showcase</a></li><li><a href="/react-native/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:10px;" class="" href="docs/getting-started.html">Getting Started</a></li><li><a style="margin-left:10px;" class="" href="docs/tutorial.html">Tutorial</a></li><li><a style="margin-left:10px;" class="" href="docs/props.html">Props</a></li><li><a style="margin-left:10px;" class="" href="docs/state.html">State</a></li><li><a style="margin-left:10px;" class="" href="docs/style.html">Style</a></li><li><a style="margin-left:10px;" class="" href="docs/height-and-width.html">Height and Width</a></li><li><a style="margin-left:10px;" class="" href="docs/flexbox.html">Layout with Flexbox</a></li><li><a style="margin-left:10px;" class="" href="docs/handling-text-input.html">Handling Text Input</a></li><li><a style="margin-left:10px;" class="" href="docs/using-a-scrollview.html">Using a ScrollView</a></li><li><a style="margin-left:10px;" class="" href="docs/using-a-listview.html">Using List Views</a></li><li><a style="margin-left:10px;" class="" href="docs/network.html">Networking</a></li><li><a style="margin-left:10px;" 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:10px;" class="" href="docs/handling-touches.html">Handling Touches</a></li><li><a style="margin-left:10px;" class="" href="docs/animations.html">Animations</a></li><li><a style="margin-left:10px;" class="" href="docs/navigation.html">Navigation</a></li><li><a style="margin-left:10px;" class="" href="docs/images.html">Images</a></li><li><a style="margin-left:10px;" class="" href="docs/colors.html">Colors</a></li><li><a style="margin-left:10px;" class="" href="docs/platform-specific-code.html">Platform Specific Code</a></li><li><a style="margin-left:10px;" class="" href="docs/debugging.html">Debugging</a></li><li><a style="margin-left:10px;" class="" href="docs/accessibility.html">Accessibility</a></li><li><a style="margin-left:10px;" class="" href="docs/timers.html">Timers</a></li><li><a style="margin-left:10px;" class="" href="docs/javascript-environment.html">JavaScript Environment</a></li><li><a style="margin-left:10px;" class="" href="docs/direct-manipulation.html">Direct Manipulation</a></li><li><a style="margin-left:10px;" class="" href="docs/performance.html">Performance</a></li><li><a style="margin-left:10px;" class="" href="docs/gesture-responder-system.html">Gesture Responder System</a></li><li><a style="margin-left:10px;" class="" href="docs/testing.html">Testing</a></li><li><a style="margin-left:10px;" class="" href="docs/understanding-cli.html">Understanding the CLI</a></li><li><a style="margin-left:10px;" class="" href="docs/integration-with-existing-apps.html">Integration With Existing Apps</a></li><li><a style="margin-left:10px;" class="" href="docs/running-on-device.html">Running On Device</a></li><li><a style="margin-left:10px;" class="" href="docs/upgrading.html">Upgrading to new React Native versions</a></li></ul></div><div class="nav-docs-section"><h3>Guides (iOS)</h3><ul><li><a style="margin-left:10px;" class="" href="docs/native-modules-ios.html">Native Modules</a></li><li><a style="margin-left:10px;" class="" href="docs/native-components-ios.html">Native UI Components</a></li><li><a style="margin-left:10px;" class="" href="docs/linking-libraries-ios.html">Linking Libraries</a></li><li><a style="margin-left:10px;" class="" href="docs/running-on-simulator-ios.html">Running On Simulator</a></li><li><a style="margin-left:10px;" class="" href="docs/communication-ios.html">Communication between native and React Native</a></li></ul></div><div class="nav-docs-section"><h3>Guides (Apple TV)</h3><ul><li><a style="margin-left:10px;" class="" href="docs/building-for-apple-tv.html">Building For Apple TV</a></li></ul></div><div class="nav-docs-section"><h3>Guides (Android)</h3><ul><li><a style="margin-left:10px;" class="" href="docs/native-modules-android.html">Native Modules</a></li><li><a style="margin-left:10px;" class="" href="docs/native-components-android.html">Native UI Components</a></li><li><a style="margin-left:10px;" class="" href="docs/headless-js-android.html">Headless JS</a></li><li><a style="margin-left:10px;" class="" href="docs/signed-apk-android.html">Generating Signed APK</a></li><li><a style="margin-left:10px;" 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:10px;" class="" href="docs/activityindicator.html">ActivityIndicator</a></li><li><a style="margin-left:10px;" class="" href="docs/button.html">Button</a></li><li><a style="margin-left:10px;" class="" href="docs/datepickerios.html">DatePickerIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/drawerlayoutandroid.html">DrawerLayoutAndroid</a></li><li><a style="margin-left:10px;" class="" href="docs/flatlist.html">FlatList</a></li><li><a style="margin-left:10px;" class="" href="docs/image.html">Image</a></li><li><a style="margin-left:10px;" class="" href="docs/keyboardavoidingview.html">KeyboardAvoidingView</a></li><li><a style="margin-left:10px;" class="" href="docs/listview.html">ListView</a></li><li><a style="margin-left:10px;" class="" href="docs/modal.html">Modal</a></li><li><a style="margin-left:10px;" class="" href="docs/navigatorios.html">NavigatorIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/picker.html">Picker</a></li><li><a style="margin-left:10px;" class="" href="docs/pickerios.html">PickerIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/progressbarandroid.html">ProgressBarAndroid</a></li><li><a style="margin-left:10px;" class="" href="docs/progressviewios.html">ProgressViewIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/refreshcontrol.html">RefreshControl</a></li><li><a style="margin-left:10px;" class="active" href="docs/scrollview.html">ScrollView</a></li><li><a style="margin-left:10px;" class="" href="docs/sectionlist.html">SectionList</a></li><li><a style="margin-left:10px;" class="" href="docs/segmentedcontrolios.html">SegmentedControlIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/slider.html">Slider</a></li><li><a style="margin-left:10px;" class="" href="docs/snapshotviewios.html">SnapshotViewIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/statusbar.html">StatusBar</a></li><li><a style="margin-left:10px;" class="" href="docs/switch.html">Switch</a></li><li><a style="margin-left:10px;" class="" href="docs/tabbarios.html">TabBarIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/tabbarios-item.html">TabBarIOS.Item</a></li><li><a style="margin-left:10px;" class="" href="docs/text.html">Text</a></li><li><a style="margin-left:10px;" class="" href="docs/textinput.html">TextInput</a></li><li><a style="margin-left:10px;" class="" href="docs/toolbarandroid.html">ToolbarAndroid</a></li><li><a style="margin-left:10px;" class="" href="docs/touchablehighlight.html">TouchableHighlight</a></li><li><a style="margin-left:10px;" class="" href="docs/touchablenativefeedback.html">TouchableNativeFeedback</a></li><li><a style="margin-left:10px;" class="" href="docs/touchableopacity.html">TouchableOpacity</a></li><li><a style="margin-left:10px;" class="" href="docs/touchablewithoutfeedback.html">TouchableWithoutFeedback</a></li><li><a style="margin-left:10px;" class="" href="docs/view.html">View</a></li><li><a style="margin-left:10px;" class="" href="docs/viewpagerandroid.html">ViewPagerAndroid</a></li><li><a style="margin-left:10px;" class="" href="docs/virtualizedlist.html">VirtualizedList</a></li><li><a style="margin-left:10px;" class="" href="docs/webview.html">WebView</a></li></ul></div><div class="nav-docs-section"><h3>APIs</h3><ul><li><a style="margin-left:10px;" class="" href="docs/accessibilityinfo.html">AccessibilityInfo</a></li><li><a style="margin-left:10px;" class="" href="docs/actionsheetios.html">ActionSheetIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/adsupportios.html">AdSupportIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/alert.html">Alert</a></li><li><a style="margin-left:10px;" class="" href="docs/alertios.html">AlertIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/animated.html">Animated</a></li><li><a style="margin-left:10px;" class="" href="docs/appregistry.html">AppRegistry</a></li><li><a style="margin-left:10px;" class="" href="docs/appstate.html">AppState</a></li><li><a style="margin-left:10px;" class="" href="docs/asyncstorage.html">AsyncStorage</a></li><li><a style="margin-left:10px;" class="" href="docs/backandroid.html">BackAndroid</a></li><li><a style="margin-left:10px;" class="" href="docs/backhandler.html">BackHandler</a></li><li><a style="margin-left:10px;" class="" href="docs/cameraroll.html">CameraRoll</a></li><li><a style="margin-left:10px;" class="" href="docs/clipboard.html">Clipboard</a></li><li><a style="margin-left:10px;" class="" href="docs/datepickerandroid.html">DatePickerAndroid</a></li><li><a style="margin-left:10px;" class="" href="docs/dimensions.html">Dimensions</a></li><li><a style="margin-left:10px;" class="" href="docs/easing.html">Easing</a></li><li><a style="margin-left:10px;" class="" href="docs/geolocation.html">Geolocation</a></li><li><a style="margin-left:10px;" class="" href="docs/imageeditor.html">ImageEditor</a></li><li><a style="margin-left:10px;" class="" href="docs/imagepickerios.html">ImagePickerIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/imagestore.html">ImageStore</a></li><li><a style="margin-left:10px;" class="" href="docs/interactionmanager.html">InteractionManager</a></li><li><a style="margin-left:10px;" class="" href="docs/keyboard.html">Keyboard</a></li><li><a style="margin-left:10px;" class="" href="docs/layoutanimation.html">LayoutAnimation</a></li><li><a style="margin-left:10px;" class="" href="docs/linking.html">Linking</a></li><li><a style="margin-left:10px;" class="" href="docs/nativemethodsmixin.html">NativeMethodsMixin</a></li><li><a style="margin-left:10px;" class="" href="docs/netinfo.html">NetInfo</a></li><li><a style="margin-left:10px;" class="" href="docs/panresponder.html">PanResponder</a></li><li><a style="margin-left:10px;" class="" href="docs/permissionsandroid.html">PermissionsAndroid</a></li><li><a style="margin-left:10px;" class="" href="docs/pixelratio.html">PixelRatio</a></li><li><a style="margin-left:10px;" class="" href="docs/pushnotificationios.html">PushNotificationIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/settings.html">Settings</a></li><li><a style="margin-left:10px;" class="" href="docs/share.html">Share</a></li><li><a style="margin-left:10px;" class="" href="docs/statusbarios.html">StatusBarIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/stylesheet.html">StyleSheet</a></li><li><a style="margin-left:10px;" class="" href="docs/systrace.html">Systrace</a></li><li><a style="margin-left:10px;" class="" href="docs/timepickerandroid.html">TimePickerAndroid</a></li><li><a style="margin-left:10px;" class="" href="docs/toastandroid.html">ToastAndroid</a></li><li><a style="margin-left:10px;" class="" href="docs/vibration.html">Vibration</a></li><li><a style="margin-left:10px;" class="" href="docs/vibrationios.html">VibrationIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/layout-props.html">Layout Props</a></li><li><a style="margin-left:10px;" 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="scrollview"></a>ScrollView <a class="hash-link" href="docs/scrollview.html#scrollview">#</a></h1><div><div><p>Component that wraps platform ScrollView while providing
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integration with touch locking "responder" system.</p><p>Keep in mind that ScrollViews must have a bounded height in order to work,
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since they contain unbounded-height children into a bounded container (via
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a scroll interaction). In order to bound the height of a ScrollView, either
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set the height of the view directly (discouraged) or make sure all parent
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views have bounded height. Forgetting to transfer <code>{flex: 1}</code> down the
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view stack can lead to errors here, which the element inspector makes
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easy to debug.</p><p>Doesn't yet support other contained responders from blocking this scroll
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view from becoming the responder.</p><p><code><ScrollView></code> vs <a href="/react-native/docs/flatlist.html" target=""><code><FlatList></code></a> - which one to use?</p><p><code>ScrollView</code> simply renders all its react child components at once. That
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makes it very easy to understand and use.</p><p>On the other hand, this has a performance downside. Imagine you have a very
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long list of items you want to display, maybe several screens worth of
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content. Creating JS components and native views for everything all at once,
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much of which may not even be shown, will contribute to slow rendering and
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increased memory usage.</p><p>This is where <code>FlatList</code> comes into play. <code>FlatList</code> renders items lazily,
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just when they are about to appear, and removes items that scroll way off
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screen to save memory and processing time.</p><p><code>FlatList</code> is also handy if you want to render separators between your items,
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multiple columns, infinite scroll loading, or any number of other features it
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supports out of the box.</p></div><h3><a class="anchor" name="props"></a>Props <a class="hash-link" href="docs/scrollview.html#props">#</a></h3><div class="props"><div class="prop"><h4 class="propTitle"><a class="anchor" name="viewproptypes"></a><a href="docs/viewproptypes.html#props">ViewPropTypes props...</a> <a class="hash-link" href="docs/scrollview.html#viewproptypes">#</a></h4></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="contentcontainerstyle"></a>contentContainerStyle?: <span class="propType">StyleSheetPropType(ViewStylePropTypes)</span> <a class="hash-link" href="docs/scrollview.html#contentcontainerstyle">#</a></h4><div><p>These styles will be applied to the scroll view content container which
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wraps all of the child views. Example:</p><p> return (
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<ScrollView contentContainerStyle={styles.contentContainer}>
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</ScrollView>
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);
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...
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const styles = StyleSheet.create({
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contentContainer: {
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paddingVertical: 20
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}
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});</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="horizontal"></a>horizontal?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#horizontal">#</a></h4><div><p>When true, the scroll view's children are arranged horizontally in a row
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instead of vertically in a column. The default value is false.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="keyboarddismissmode"></a>keyboardDismissMode?: <span class="propType">PropTypes.oneOf([
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'none', // default
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'interactive',
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'on-drag',
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])</span> <a class="hash-link" href="docs/scrollview.html#keyboarddismissmode">#</a></h4><div><p>Determines whether the keyboard gets dismissed in response to a drag.
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- 'none' (the default), drags do not dismiss the keyboard.
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- 'on-drag', the keyboard is dismissed when a drag begins.
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- 'interactive', the keyboard is dismissed interactively with the drag and moves in
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synchrony with the touch; dragging upwards cancels the dismissal.
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On android this is not supported and it will have the same behavior as 'none'.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="keyboardshouldpersisttaps"></a>keyboardShouldPersistTaps?: <span class="propType">PropTypes.oneOf(['always', 'never', 'handled', false, true])</span> <a class="hash-link" href="docs/scrollview.html#keyboardshouldpersisttaps">#</a></h4><div><p>Determines when the keyboard should stay visible after a tap.</p><ul><li>'never' (the default), tapping outside of the focused text input when the keyboard
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is up dismisses the keyboard. When this happens, children won't receive the tap.</li><li>'always', the keyboard will not dismiss automatically, and the scroll view will not
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catch taps, but children of the scroll view can catch taps.</li><li>'handled', the keyboard will not dismiss automatically when the tap was handled by
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a children, (or captured by an ancestor).</li><li>false, deprecated, use 'never' instead</li><li>true, deprecated, use 'always' instead</li></ul></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="oncontentsizechange"></a>onContentSizeChange?: <span class="propType">PropTypes.func</span> <a class="hash-link" href="docs/scrollview.html#oncontentsizechange">#</a></h4><div><p>Called when scrollable content view of the ScrollView changes.</p><p>Handler function is passed the content width and content height as parameters:
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<code>(contentWidth, contentHeight)</code></p><p>It's implemented using onLayout handler attached to the content container
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which this ScrollView renders.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onscroll"></a>onScroll?: <span class="propType">PropTypes.func</span> <a class="hash-link" href="docs/scrollview.html#onscroll">#</a></h4><div><p>Fires at most once per frame during scrolling. The frequency of the
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events can be controlled using the <code>scrollEventThrottle</code> prop.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="pagingenabled"></a>pagingEnabled?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#pagingenabled">#</a></h4><div><p>When true, the scroll view stops on multiples of the scroll view's size
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when scrolling. This can be used for horizontal pagination. The default
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value is false.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="refreshcontrol"></a>refreshControl?: <span class="propType">PropTypes.element</span> <a class="hash-link" href="docs/scrollview.html#refreshcontrol">#</a></h4><div><p>A RefreshControl component, used to provide pull-to-refresh
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functionality for the ScrollView. Only works for vertical ScrollViews
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(<code>horizontal</code> prop must be <code>false</code>).</p><p>See <a href="docs/refreshcontrol.html" target="_blank">RefreshControl</a>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="removeclippedsubviews"></a>removeClippedSubviews?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#removeclippedsubviews">#</a></h4><div><p>Experimental: When true, offscreen child views (whose <code>overflow</code> value is
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<code>hidden</code>) are removed from their native backing superview when offscreen.
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This can improve scrolling performance on long lists. The default value is
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true.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="scrollenabled"></a>scrollEnabled?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#scrollenabled">#</a></h4><div><p>When false, the content does not scroll.
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The default value is true.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="showshorizontalscrollindicator"></a>showsHorizontalScrollIndicator?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#showshorizontalscrollindicator">#</a></h4><div><p>When true, shows a horizontal scroll indicator.
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The default value is true.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="showsverticalscrollindicator"></a>showsVerticalScrollIndicator?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#showsverticalscrollindicator">#</a></h4><div><p>When true, shows a vertical scroll indicator.
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The default value is true.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="stickyheaderindices"></a>stickyHeaderIndices?: <span class="propType">PropTypes.arrayOf(PropTypes.number)</span> <a class="hash-link" href="docs/scrollview.html#stickyheaderindices">#</a></h4><div><p>An array of child indices determining which children get docked to the
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top of the screen when scrolling. For example, passing
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<code>stickyHeaderIndices={[0]}</code> will cause the first child to be fixed to the
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top of the scroll view. This property is not supported in conjunction
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with <code>horizontal={true}</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="style"></a>style?: <span class="propType">style</span> <a class="hash-link" href="docs/scrollview.html#style">#</a></h4><div class="compactProps"><div class="prop"><h6 class="propTitle"><a href="docs/layout-props.html#props">Layout Props...</a></h6></div><div class="prop"><h6 class="propTitle"><a href="docs/shadow-props.html#props">Shadow Props...</a></h6></div><div class="prop"><h6 class="propTitle"><a href="docs/transforms.html#props">Transforms...</a></h6></div><div class="prop"><h6 class="propTitle">backfaceVisibility <span class="propType">enum('visible', 'hidden')</span> </h6></div><div class="prop"><h6 class="propTitle">backgroundColor <span class="propType"><a href="docs/colors.html">color</a></span> </h6></div><div class="prop"><h6 class="propTitle">borderBottomColor <span class="propType"><a href="docs/colors.html">color</a></span> </h6></div><div class="prop"><h6 class="propTitle">borderBottomLeftRadius <span class="propType">number</span> </h6></div><div class="prop"><h6 class="propTitle">borderBottomRightRadius <span class="propType">number</span> </h6></div><div class="prop"><h6 class="propTitle">borderBottomWidth <span class="propType">number</span> </h6></div><div class="prop"><h6 class="propTitle">borderColor <span class="propType"><a href="docs/colors.html">color</a></span> </h6></div><div class="prop"><h6 class="propTitle">borderLeftColor <span class="propType"><a href="docs/colors.html">color</a></span> </h6></div><div class="prop"><h6 class="propTitle">borderLeftWidth <span class="propType">number</span> </h6></div><div class="prop"><h6 class="propTitle">borderRadius <span class="propType">number</span> </h6></div><div class="prop"><h6 class="propTitle">borderRightColor <span class="propType"><a href="docs/colors.html">color</a></span> </h6></div><div class="prop"><h6 class="propTitle">borderRightWidth <span class="propType">number</span> </h6></div><div class="prop"><h6 class="propTitle">borderStyle <span class="propType">enum('solid', 'dotted', 'dashed')</span> </h6></div><div class="prop"><h6 class="propTitle">borderTopColor <span class="propType"><a href="docs/colors.html">color</a></span> </h6></div><div class="prop"><h6 class="propTitle">borderTopLeftRadius <span class="propType">number</span> </h6></div><div class="prop"><h6 class="propTitle">borderTopRightRadius <span class="propType">number</span> </h6></div><div class="prop"><h6 class="propTitle">borderTopWidth <span class="propType">number</span> </h6></div><div class="prop"><h6 class="propTitle">borderWidth <span class="propType">number</span> </h6></div><div class="prop"><h6 class="propTitle">opacity <span class="propType">number</span> </h6></div><div class="prop"><h6 class="propTitle"><span class="platform">android</span>elevation <span class="propType">number</span> <div><p>(Android-only) Sets the elevation of a view, using Android's underlying
|
|
<a href="https://developer.android.com/training/material/shadows-clipping.html#Elevation" target="_blank">elevation API</a>.
|
|
This adds a drop shadow to the item and affects z-order for overlapping views.
|
|
Only supported on Android 5.0+, has no effect on earlier versions.</p></div></h6></div></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="endfillcolor"></a><span class="platform">android</span>endFillColor?: <span class="propType"><a href="docs/colors.html">color</a></span> <a class="hash-link" href="docs/scrollview.html#endfillcolor">#</a></h4><div><p>Sometimes a scrollview takes up more space than its content fills. When this is
|
|
the case, this prop will fill the rest of the scrollview with a color to avoid setting
|
|
a background and creating unnecessary overdraw. This is an advanced optimization
|
|
that is not needed in the general case.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="overscrollmode"></a><span class="platform">android</span>overScrollMode?: <span class="propType">PropTypes.oneOf([
|
|
'auto',
|
|
'always',
|
|
'never',
|
|
])</span> <a class="hash-link" href="docs/scrollview.html#overscrollmode">#</a></h4><div><p>Used to override default value of overScroll mode.</p><p>Possible values:</p><ul><li><code>'auto'</code> - Default value, allow a user to over-scroll
|
|
this view only if the content is large enough to meaningfully scroll.</li><li><code>'always'</code> - Always allow a user to over-scroll this view.</li><li><code>'never'</code> - Never allow a user to over-scroll this view.</li></ul></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="scrollperftag"></a><span class="platform">android</span>scrollPerfTag?: <span class="propType">PropTypes.string</span> <a class="hash-link" href="docs/scrollview.html#scrollperftag">#</a></h4><div><p>Tag used to log scroll performance on this scroll view. Will force
|
|
momentum events to be turned on (see sendMomentumEvents). This doesn't do
|
|
anything out of the box and you need to implement a custom native
|
|
FpsListener for it to be useful.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="alwaysbouncehorizontal"></a><span class="platform">ios</span>alwaysBounceHorizontal?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#alwaysbouncehorizontal">#</a></h4><div><p>When true, the scroll view bounces horizontally when it reaches the end
|
|
even if the content is smaller than the scroll view itself. The default
|
|
value is true when <code>horizontal={true}</code> and false otherwise.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="alwaysbouncevertical"></a><span class="platform">ios</span>alwaysBounceVertical?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#alwaysbouncevertical">#</a></h4><div><p>When true, the scroll view bounces vertically when it reaches the end
|
|
even if the content is smaller than the scroll view itself. The default
|
|
value is false when <code>horizontal={true}</code> and true otherwise.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="automaticallyadjustcontentinsets"></a><span class="platform">ios</span>automaticallyAdjustContentInsets?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#automaticallyadjustcontentinsets">#</a></h4><div><p>Controls whether iOS should automatically adjust the content inset
|
|
for scroll views that are placed behind a navigation bar or
|
|
tab bar/ toolbar. The default value is true.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="bounces"></a><span class="platform">ios</span>bounces?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#bounces">#</a></h4><div><p>When true, the scroll view bounces when it reaches the end of the
|
|
content if the content is larger then the scroll view along the axis of
|
|
the scroll direction. When false, it disables all bouncing even if
|
|
the <code>alwaysBounce*</code> props are true. The default value is true.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="bounceszoom"></a><span class="platform">ios</span>bouncesZoom?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#bounceszoom">#</a></h4><div><p>When true, gestures can drive zoom past min/max and the zoom will animate
|
|
to the min/max value at gesture end, otherwise the zoom will not exceed
|
|
the limits.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="cancancelcontenttouches"></a><span class="platform">ios</span>canCancelContentTouches?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#cancancelcontenttouches">#</a></h4><div><p>When false, once tracking starts, won't try to drag if the touch moves.
|
|
The default value is true.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="centercontent"></a><span class="platform">ios</span>centerContent?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#centercontent">#</a></h4><div><p>When true, the scroll view automatically centers the content when the
|
|
content is smaller than the scroll view bounds; when the content is
|
|
larger than the scroll view, this property has no effect. The default
|
|
value is false.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="contentinset"></a><span class="platform">ios</span>contentInset?: <span class="propType">{top: number, left: number, bottom: number, right: number}</span> <a class="hash-link" href="docs/scrollview.html#contentinset">#</a></h4><div><p>The amount by which the scroll view content is inset from the edges
|
|
of the scroll view. Defaults to <code>{top: 0, left: 0, bottom: 0, right: 0}</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="contentoffset"></a><span class="platform">ios</span>contentOffset?: <span class="propType">PointPropType</span> <a class="hash-link" href="docs/scrollview.html#contentoffset">#</a></h4><div><p>Used to manually set the starting scroll offset.
|
|
The default value is <code>{x: 0, y: 0}</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="decelerationrate"></a><span class="platform">ios</span>decelerationRate?: <span class="propType">PropTypes.oneOfType([
|
|
PropTypes.oneOf(['fast', 'normal']),
|
|
PropTypes.number,
|
|
])</span> <a class="hash-link" href="docs/scrollview.html#decelerationrate">#</a></h4><div><p>A floating-point number that determines how quickly the scroll view
|
|
decelerates after the user lifts their finger. You may also use string
|
|
shortcuts <code>"normal"</code> and <code>"fast"</code> which match the underlying iOS settings
|
|
for <code>UIScrollViewDecelerationRateNormal</code> and
|
|
<code>UIScrollViewDecelerationRateFast</code> respectively.
|
|
- normal: 0.998 (the default)
|
|
- fast: 0.99</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="directionallockenabled"></a><span class="platform">ios</span>directionalLockEnabled?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#directionallockenabled">#</a></h4><div><p>When true, the ScrollView will try to lock to only vertical or horizontal
|
|
scrolling while dragging. The default value is false.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="indicatorstyle"></a><span class="platform">ios</span>indicatorStyle?: <span class="propType">PropTypes.oneOf([
|
|
'default', // default
|
|
'black',
|
|
'white',
|
|
])</span> <a class="hash-link" href="docs/scrollview.html#indicatorstyle">#</a></h4><div><p>The style of the scroll indicators.
|
|
- <code>default</code> (the default), same as <code>black</code>.
|
|
- <code>black</code>, scroll indicator is black. This style is good against a light background.
|
|
- <code>white</code>, scroll indicator is white. This style is good against a dark background.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="maximumzoomscale"></a><span class="platform">ios</span>maximumZoomScale?: <span class="propType">PropTypes.number</span> <a class="hash-link" href="docs/scrollview.html#maximumzoomscale">#</a></h4><div><p>The maximum allowed zoom scale. The default value is 1.0.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="minimumzoomscale"></a><span class="platform">ios</span>minimumZoomScale?: <span class="propType">PropTypes.number</span> <a class="hash-link" href="docs/scrollview.html#minimumzoomscale">#</a></h4><div><p>The minimum allowed zoom scale. The default value is 1.0.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="onscrollanimationend"></a><span class="platform">ios</span>onScrollAnimationEnd?: <span class="propType">PropTypes.func</span> <a class="hash-link" href="docs/scrollview.html#onscrollanimationend">#</a></h4><div><p>Called when a scrolling animation ends.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="scrolleventthrottle"></a><span class="platform">ios</span>scrollEventThrottle?: <span class="propType">PropTypes.number</span> <a class="hash-link" href="docs/scrollview.html#scrolleventthrottle">#</a></h4><div><p>This controls how often the scroll event will be fired while scrolling
|
|
(as a time interval in ms). A lower number yields better accuracy for code
|
|
that is tracking the scroll position, but can lead to scroll performance
|
|
problems due to the volume of information being send over the bridge.
|
|
You will not notice a difference between values set between 1-16 as the
|
|
JS run loop is synced to the screen refresh rate. If you do not need precise
|
|
scroll position tracking, set this value higher to limit the information
|
|
being sent across the bridge. The default value is zero, which results in
|
|
the scroll event being sent only once each time the view is scrolled.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="scrollindicatorinsets"></a><span class="platform">ios</span>scrollIndicatorInsets?: <span class="propType">{top: number, left: number, bottom: number, right: number}</span> <a class="hash-link" href="docs/scrollview.html#scrollindicatorinsets">#</a></h4><div><p>The amount by which the scroll view indicators are inset from the edges
|
|
of the scroll view. This should normally be set to the same value as
|
|
the <code>contentInset</code>. Defaults to <code>{0, 0, 0, 0}</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="scrollstotop"></a><span class="platform">ios</span>scrollsToTop?: <span class="propType">PropTypes.bool</span> <a class="hash-link" href="docs/scrollview.html#scrollstotop">#</a></h4><div><p>When true, the scroll view scrolls to top when the status bar is tapped.
|
|
The default value is true.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="snaptoalignment"></a><span class="platform">ios</span>snapToAlignment?: <span class="propType">PropTypes.oneOf([
|
|
'start', // default
|
|
'center',
|
|
'end',
|
|
])</span> <a class="hash-link" href="docs/scrollview.html#snaptoalignment">#</a></h4><div><p>When <code>snapToInterval</code> is set, <code>snapToAlignment</code> will define the relationship
|
|
of the snapping to the scroll view.
|
|
- <code>start</code> (the default) will align the snap at the left (horizontal) or top (vertical)
|
|
- <code>center</code> will align the snap in the center
|
|
- <code>end</code> will align the snap at the right (horizontal) or bottom (vertical)</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="snaptointerval"></a><span class="platform">ios</span>snapToInterval?: <span class="propType">PropTypes.number</span> <a class="hash-link" href="docs/scrollview.html#snaptointerval">#</a></h4><div><p>When set, causes the scroll view to stop at multiples of the value of
|
|
<code>snapToInterval</code>. This can be used for paginating through children
|
|
that have lengths smaller than the scroll view. Used in combination
|
|
with <code>snapToAlignment</code>.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="zoomscale"></a><span class="platform">ios</span>zoomScale?: <span class="propType">PropTypes.number</span> <a class="hash-link" href="docs/scrollview.html#zoomscale">#</a></h4><div><p>The current scale of the scroll view content. The default value is 1.0.</p></div></div></div><span><h3><a class="anchor" name="methods"></a>Methods <a class="hash-link" href="docs/scrollview.html#methods">#</a></h3><div class="props"><div class="prop"><h4 class="methodTitle"><a class="anchor" name="scrollto"></a>scrollTo<span class="methodType">(y?: number, object, x?: number, animated?: boolean)</span> <a class="hash-link" href="docs/scrollview.html#scrollto">#</a></h4><div><p>Scrolls to a given x, y offset, either immediately or with a smooth animation.</p><p>Example:</p><p><code>scrollTo({x: 0, y: 0, animated: true})</code></p><p>Note: The weird function signature is due to the fact that, for historical reasons,
|
|
the function also accepts separate arguments as an alternative to the options object.
|
|
This is deprecated due to ambiguity (y before x), and SHOULD NOT BE USED.</p></div></div><div class="prop"><h4 class="methodTitle"><a class="anchor" name="scrolltoend"></a>scrollToEnd<span class="methodType">(options?: object)</span> <a class="hash-link" href="docs/scrollview.html#scrolltoend">#</a></h4><div><p>If this is a vertical ScrollView scrolls to the bottom.
|
|
If this is a horizontal ScrollView scrolls to the right.</p><p>Use <code>scrollToEnd({animated: true})</code> for smooth animated scrolling,
|
|
<code>scrollToEnd({animated: false})</code> for immediate scrolling.
|
|
If no options are passed, <code>animated</code> defaults to true.</p></div></div><div class="prop"><h4 class="methodTitle"><a class="anchor" name="scrollwithoutanimationto"></a>scrollWithoutAnimationTo<span class="methodType">(y, x)</span> <a class="hash-link" href="docs/scrollview.html#scrollwithoutanimationto">#</a></h4><div><p>Deprecated, use <code>scrollTo</code> instead.</p></div></div></div></span></div><p class="edit-page-block">You can <a target="_blank" href="https://github.com/facebook/react-native/blob/master/Libraries/Components/ScrollView/ScrollView.js">edit the content above on GitHub</a> and send us a pull request!</p><div class="docs-prevnext"><a class="docs-prev" href="docs/refreshcontrol.html#content">← Prev</a><a class="docs-next" href="docs/sectionlist.html#content">Next →</a></div></div></section><footer class="nav-footer"><section class="sitemap"><a href="/react-native" class="nav-home"><img src="img/header_logo.png" alt="React Native" width="66" height="58"></a><div><h5><a href="docs/">Docs</a></h5><a href="docs/getting-started.html">Getting Started</a><a href="docs/tutorial.html">Tutorial</a><a href="docs/integration-with-existing-apps.html">Integration With Existing Apps</a><a href="docs/more-resources.html">More Resources</a></div><div><h5><a href="/react-native/support.html">Community</a></h5><a href="/react-native/showcase.html">Showcase</a><a href="http://www.meetup.com/topics/react-native/" target="_blank">Upcoming Events</a><a href="https://www.facebook.com/groups/react.native.community" target="_blank">Facebook Group</a><a href="https://twitter.com/reactnative" target="_blank">Twitter</a></div><div><h5><a href="/react-native/support.html">Help</a></h5><a href="http://stackoverflow.com/questions/tagged/react-native" target="_blank">Stack Overflow</a><a href="https://discord.gg/0ZcbPKXt5bZjGY5n">Reactiflux Chat</a><a href="/react-native/versions.html" target="_blank">Latest Releases</a><a href="https://react-native.canny.io/feature-requests" target="_blank">Feature Requests</a></div><div><h5>More</h5><a href="/react-native/blog">Blog</a><a href="https://github.com/facebook/react-native" target="_blank">GitHub</a><a href="http://facebook.github.io/react/" target="_blank">React</a></div></section><section class="newsletter"><div id="mc_embed_signup"><form action="//reactnative.us10.list-manage.com/subscribe/post?u=db0dd948e2b729ee62625b1a8&id=47cd41008f" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate><div id="mc_embed_signup_scroll"><label for="mce-EMAIL"><h5>Get the React Native Newsletter</h5></label><input type="email" value="" name="EMAIL" class="email" id="mce-EMAIL" placeholder="email address" required><div style="position:absolute;left:-5000px;" aria-hidden="true"><input type="text" name="b_db0dd948e2b729ee62625b1a8_47cd41008f" tabindex="-1" value=""></div><div class="clear"><input type="submit" value="Sign up" name="subscribe" id="mc-embedded-subscribe" class="button"></div></div></form></div></section><a href="https://code.facebook.com/projects/" target="_blank" class="fbOpenSource"><img src="img/oss_logo.png" alt="Facebook Open Source" width="170" height="45"></a><section class="copyright">Copyright © 2017 Facebook Inc.</section></footer></div><div id="fb-root"></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
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