forked from facebook/react-native
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathindex.html
More file actions
169 lines (159 loc) · 34.9 KB
/
index.html
File metadata and controls
169 lines (159 loc) · 34.9 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>SectionList · React Native</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta name="description" content="A performant interface for rendering sectioned lists, supporting the most handy features:"/><meta name="docsearch:version" content="0.49"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="SectionList · React Native"/><meta property="og:type" content="website"/><meta property="og:url" content="https://reactnative.dev/"/><meta property="og:description" content="A performant interface for rendering sectioned lists, supporting the most handy features:"/><meta property="og:image" content="https://reactnative.dev/img/logo-og.png"/><meta name="twitter:card" content="summary"/><meta name="twitter:image" content="https://reactnative.dev/img/logo-og.png"/><link rel="shortcut icon" href="/img/favicon.ico"/><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://reactnative.dev/blog/atom.xml" title="React Native Blog ATOM Feed"/><link rel="alternate" type="application/rss+xml" href="https://reactnative.dev/blog/feed.xml" title="React Native Blog RSS Feed"/><script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-41298772-2', 'auto');
ga('send', 'pageview');
</script><script type="text/javascript" src="https://cdn.jsdelivr.net/npm/focus-visible@5.0.2/dist/focus-visible.min.js"></script><script type="text/javascript" src="https://snack.expo.io/embed.js"></script><script type="text/javascript" src="https://platform.twitter.com/widgets.js"></script><script type="text/javascript" src="https://buttons.github.io/buttons.js"></script><script type="text/javascript" src="/js/codeblocks.js"></script><script type="text/javascript" src="/js/tabs.js"></script><script type="text/javascript" src="/js/docs-rating.js"></script><script type="text/javascript" src="/js/announcement.js"></script><script src="https://unpkg.com/vanilla-back-to-top@7.1.14/dist/vanilla-back-to-top.min.js"></script><script>
document.addEventListener('DOMContentLoaded', function() {
addBackToTop(
{"zIndex":100}
)
});
</script><script src="/js/scrollSpy.js"></script><link rel="stylesheet" href="/css/prism.css"/><link rel="stylesheet" href="/css/main.css"/><script src="/js/codetabs.js"></script></head><body class="sideNavVisible separateOnPageNav"><div class="fixedHeaderContainer"><div class="headerWrapper wrapper"><header><a href="/"><img class="logo" src="/img/header_logo.svg" alt="React Native"/><h2 class="headerTitleWithLogo">React Native</h2></a><a href="/versions"><h3>0.49</h3></a><div class="navigationWrapper navigationSlider"><nav class="slidingNav"><ul class="nav-site nav-site-internal"><li class="siteNavGroupActive"><a href="/docs/0.49/getting-started" target="_self">Docs</a></li><li class="siteNavGroupActive"><a href="/docs/0.49/components-and-apis" target="_self">Components</a></li><li class="siteNavGroupActive"><a href="/docs/0.49/accessibilityinfo" target="_self">API</a></li><li class=""><a href="/help" target="_self">Community</a></li><li class=""><a href="/blog/" target="_self">Blog</a></li><li class="navSearchWrapper reactNavSearchWrapper"><input type="text" id="search_input_react" placeholder="Search" title="Search"/></li><li class=""><a href="https://github.com/facebook/react-native" target="_self">GitHub</a></li></ul></nav></div></header></div></div><div class="navPusher"><div class="docMainWrapper wrapper"><div class="docsNavContainer" id="docsNav"><nav class="toc"><div class="toggleNav"><section class="navWrapper wrapper"><div class="navBreadcrumb wrapper"><div class="navToggle" id="navToggler"><div class="hamburger-menu"><div class="line1"></div><div class="line2"></div><div class="line3"></div></div></div><h2><i>›</i><span>Components</span></h2><div class="tocToggler" id="tocToggler"><i class="icon-toc"></i></div></div><div class="navGroups"><div class="navGroup"><h3 class="navGroupCategoryTitle collapsible">The Basics<span class="arrow"><svg width="24" height="24" viewBox="0 0 24 24"><path fill="#565656" d="M7.41 15.41L12 10.83l4.59 4.58L18 14l-6-6-6 6z"></path><path d="M0 0h24v24H0z" fill="none"></path></svg></span></h3><ul class="hide"><li class="navListItem"><a class="navItem" href="/docs/0.49/getting-started">Getting Started</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/tutorial">Learn the Basics</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/props">Props</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/state">State</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/style">Style</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/height-and-width">Height and Width</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/flexbox">Layout with Flexbox</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/handling-text-input">Handling Text Input</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/handling-touches">Handling Touches</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/using-a-scrollview">Using a ScrollView</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/using-a-listview">Using List Views</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/network">Networking</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/more-resources">More Resources</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle collapsible">Guides<span class="arrow"><svg width="24" height="24" viewBox="0 0 24 24"><path fill="#565656" d="M7.41 15.41L12 10.83l4.59 4.58L18 14l-6-6-6 6z"></path><path d="M0 0h24v24H0z" fill="none"></path></svg></span></h3><ul class="hide"><li class="navListItem"><a class="navItem" href="/docs/0.49/components-and-apis">Components and APIs</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/platform-specific-code">Platform Specific Code</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/navigation">Navigating Between Screens</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/images">Images</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/animations">Animations</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/accessibility">Accessibility</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/improvingux">Improving User Experience</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/timers">Timers</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/debugging">Debugging</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/performance">Performance</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/gesture-responder-system">Gesture Responder System</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/javascript-environment">JavaScript Environment</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/direct-manipulation">Direct Manipulation</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/colors">Color Reference</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/integration-with-existing-apps">Integration with Existing Apps</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/running-on-device">Running On Device</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/upgrading">Upgrading to new React Native versions</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/troubleshooting">Troubleshooting</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/native-modules-setup">Native Modules Setup</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle collapsible">Guides (iOS)<span class="arrow"><svg width="24" height="24" viewBox="0 0 24 24"><path fill="#565656" d="M7.41 15.41L12 10.83l4.59 4.58L18 14l-6-6-6 6z"></path><path d="M0 0h24v24H0z" fill="none"></path></svg></span></h3><ul class="hide"><li class="navListItem"><a class="navItem" href="/docs/0.49/native-modules-ios">Native Modules</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/native-components-ios">Native UI Components</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/linking-libraries-ios">Linking Libraries</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/running-on-simulator-ios">Running On Simulator</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/communication-ios">Communication between native and React Native</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/building-for-tv">Building For TV Devices</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/app-extensions">App Extensions</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle collapsible">Guides (Android)<span class="arrow"><svg width="24" height="24" viewBox="0 0 24 24"><path fill="#565656" d="M7.41 15.41L12 10.83l4.59 4.58L18 14l-6-6-6 6z"></path><path d="M0 0h24v24H0z" fill="none"></path></svg></span></h3><ul class="hide"><li class="navListItem"><a class="navItem" href="/docs/0.49/native-modules-android">Native Modules</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/native-components-android">Native UI Components</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/headless-js-android">Headless JS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/signed-apk-android">Publishing to Google Play Store</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/removing-default-permissions">Removing Default Permissions</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle collapsible">Components<span class="arrow"><svg width="24" height="24" viewBox="0 0 24 24"><path fill="#565656" d="M7.41 15.41L12 10.83l4.59 4.58L18 14l-6-6-6 6z"></path><path d="M0 0h24v24H0z" fill="none"></path></svg></span></h3><ul class="hide"><li class="navListItem"><a class="navItem" href="/docs/0.49/activityindicator">ActivityIndicator</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/button">Button</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/datepickerios">DatePickerIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/drawerlayoutandroid">DrawerLayoutAndroid</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/flatlist">FlatList</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/image">Image</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/imagebackground">ImageBackground</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/keyboardavoidingview">KeyboardAvoidingView</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/listview">ListView</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/maskedviewios">MaskedViewIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/modal">Modal</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/navigatorios">NavigatorIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/picker">Picker</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/pickerios">PickerIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/progressbarandroid">ProgressBarAndroid</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/progressviewios">ProgressViewIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/refreshcontrol">RefreshControl</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/scrollview">ScrollView</a></li><li class="navListItem navListItemActive"><a class="navItem" href="/docs/0.49/sectionlist">SectionList</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/segmentedcontrolios">SegmentedControlIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/slider">Slider</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/snapshotviewios">SnapshotViewIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/statusbar">StatusBar</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/switch">Switch</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/tabbarios">TabBarIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/tabbarios-item">TabBarIOS.Item</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/text">Text</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/textinput">TextInput</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/toolbarandroid">ToolbarAndroid</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/touchablehighlight">TouchableHighlight</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/touchablenativefeedback">TouchableNativeFeedback</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/touchableopacity">TouchableOpacity</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/touchablewithoutfeedback">TouchableWithoutFeedback</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/view">View</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/viewpagerandroid">ViewPagerAndroid</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/virtualizedlist">VirtualizedList</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/webview">WebView</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle collapsible">APIs<span class="arrow"><svg width="24" height="24" viewBox="0 0 24 24"><path fill="#565656" d="M7.41 15.41L12 10.83l4.59 4.58L18 14l-6-6-6 6z"></path><path d="M0 0h24v24H0z" fill="none"></path></svg></span></h3><ul class="hide"><li class="navListItem"><a class="navItem" href="/docs/0.49/accessibilityinfo">AccessibilityInfo</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/actionsheetios">ActionSheetIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/alert">Alert</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/alertios">AlertIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/animated">Animated</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/appregistry">AppRegistry</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/appstate">AppState</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/asyncstorage">AsyncStorage</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/backandroid">BackAndroid</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/backhandler">BackHandler</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/cameraroll">CameraRoll</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/clipboard">Clipboard</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/datepickerandroid">DatePickerAndroid</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/dimensions">Dimensions</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/easing">Easing</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/geolocation">Geolocation</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/imageeditor">ImageEditor</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/imagepickerios">ImagePickerIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/imagestore">ImageStore</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/image-style-props">Image Style Props</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/interactionmanager">InteractionManager</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/keyboard">Keyboard</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/layout-props">Layout Props</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/layoutanimation">LayoutAnimation</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/linking">Linking</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/listviewdatasource">ListViewDataSource</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/netinfo">NetInfo</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/panresponder">PanResponder</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/permissionsandroid">PermissionsAndroid</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/pixelratio">PixelRatio</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/pushnotificationios">PushNotificationIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/settings">Settings</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/shadow-props">Shadow Props</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/share">Share</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/statusbarios">StatusBarIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/stylesheet">StyleSheet</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/systrace">Systrace</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/text-style-props">Text Style Props</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/timepickerandroid">TimePickerAndroid</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/toastandroid">ToastAndroid</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/transforms">Transforms</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/vibration">Vibration</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/vibrationios">VibrationIOS</a></li><li class="navListItem"><a class="navItem" href="/docs/0.49/view-style-props">View Style Props</a></li></ul></div></div></section></div><script>
var coll = document.getElementsByClassName('collapsible');
var checkActiveCategory = true;
for (var i = 0; i < coll.length; i++) {
var links = coll[i].nextElementSibling.getElementsByTagName('*');
if (checkActiveCategory){
for (var j = 0; j < links.length; j++) {
if (links[j].classList.contains('navListItemActive')){
coll[i].nextElementSibling.classList.toggle('hide');
coll[i].childNodes[1].classList.toggle('rotate');
checkActiveCategory = false;
break;
}
}
}
coll[i].addEventListener('click', function() {
var arrow = this.childNodes[1];
arrow.classList.toggle('rotate');
var content = this.nextElementSibling;
content.classList.toggle('hide');
});
}
document.addEventListener('DOMContentLoaded', function() {
createToggler('#navToggler', '#docsNav', 'docsSliderActive');
createToggler('#tocToggler', 'body', 'tocActive');
var headings = document.querySelector('.toc-headings');
headings && headings.addEventListener('click', function(event) {
var el = event.target;
while(el !== headings){
if (el.tagName === 'A') {
document.body.classList.remove('tocActive');
break;
} else{
el = el.parentNode;
}
}
}, false);
function createToggler(togglerSelector, targetSelector, className) {
var toggler = document.querySelector(togglerSelector);
var target = document.querySelector(targetSelector);
if (!toggler) {
return;
}
toggler.onclick = function(event) {
event.preventDefault();
target.classList.toggle(className);
};
}
});
</script></nav></div><div class="container mainContainer docsContainer"><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/sectionlist.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 id="__docusaurus" class="postHeaderTitle">SectionList</h1></header><article><div><span><p>A performant interface for rendering sectioned lists, supporting the most handy features:</p>
<ul>
<li>Fully cross-platform.</li>
<li>Configurable viewability callbacks.</li>
<li>List header support.</li>
<li>List footer support.</li>
<li>Item separator support.</li>
<li>Section header support.</li>
<li>Section separator support.</li>
<li>Heterogeneous data and item rendering support.</li>
<li>Pull to Refresh.</li>
<li>Scroll loading.</li>
</ul>
<p>If you don't need section support and want a simpler interface, use <a href="/docs/0.49/flatlist"><code><FlatList></code></a>.</p>
<p>Examples:</p>
<pre><code class="hljs"><SectionList
renderItem={({item}) => <ListItem title={item} />}
renderSectionHeader={({section}) => <Header title={section.title} />}
sections={[ // homogenous rendering between sections
{data: [...], title: ...},
{data: [...], title: ...},
{data: [...], title: ...},
]}
/>
<SectionList
sections={[ // heterogeneous rendering between sections
{data: [...], renderItem: ...},
{data: [...], renderItem: ...},
{data: [...], renderItem: ...},
]}
/>
</code></pre>
<p>This is a convenience wrapper around <a href="/docs/0.49/virtualizedlist"><code><VirtualizedList></code></a>, and thus inherits its props (as well as those of <code>ScrollView</code>) that aren't explicitly listed here, along with the following caveats:</p>
<ul>
<li>Internal state is not preserved when content scrolls out of the render window. Make sure all your data is captured in the item data or external stores like Flux, Redux, or Relay.</li>
<li>This is a <code>PureComponent</code> which means that it will not re-render if <code>props</code> remain shallow-equal. Make sure that everything your <code>renderItem</code> function depends on is passed as a prop (e.g. <code>extraData</code>) that is not <code>===</code> after updates, otherwise your UI may not update on changes. This includes the <code>data</code> prop and parent component state.</li>
<li>In order to constrain memory and enable smooth scrolling, content is rendered asynchronously offscreen. This means it's possible to scroll faster than the fill rate and momentarily see blank content. This is a tradeoff that can be adjusted to suit the needs of each application, and we are working on improving it behind the scenes.</li>
<li>By default, the list looks for a <code>key</code> prop on each item and uses that for the React key. Alternatively, you can provide a custom <code>keyExtractor</code> prop.</li>
</ul>
<h3><a class="anchor" aria-hidden="true" id="props"></a><a href="#props" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" 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>Props</h3>
<ul>
<li><a href="/docs/0.49/sectionlist#stickysectionheadersenabled"><code>stickySectionHeadersEnabled</code></a></li>
</ul>
<h3><a class="anchor" aria-hidden="true" id="methods"></a><a href="#methods" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" 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>Methods</h3>
<ul>
<li><a href="/docs/0.49/sectionlist#scrolltolocation"><code>scrollToLocation</code></a></li>
<li><a href="/docs/0.49/sectionlist#recordinteraction"><code>recordInteraction</code></a></li>
<li><a href="/docs/0.49/sectionlist#flashscrollindicators"><code>flashScrollIndicators</code></a></li>
</ul>
<hr>
<h1><a class="anchor" aria-hidden="true" id="reference"></a><a href="#reference" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" 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>Reference</h1>
<h2><a class="anchor" aria-hidden="true" id="props-1"></a><a href="#props-1" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" 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>Props</h2>
<h3><a class="anchor" aria-hidden="true" id="stickysectionheadersenabled"></a><a href="#stickysectionheadersenabled" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" 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><code>stickySectionHeadersEnabled</code></h3>
<table>
<thead>
<tr><th>Type</th><th>Required</th></tr>
</thead>
<tbody>
<tr><td></td><td>No</td></tr>
</tbody>
</table>
<h2><a class="anchor" aria-hidden="true" id="methods-1"></a><a href="#methods-1" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" 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>Methods</h2>
<h3><a class="anchor" aria-hidden="true" id="scrolltolocation"></a><a href="#scrolltolocation" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" 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><code>scrollToLocation()</code></h3>
<pre><code class="hljs css language-jsx"><span class="token function">scrollToLocation</span><span class="token punctuation">(</span><span class="token punctuation">(</span>params<span class="token punctuation">:</span> object<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<p>Scrolls to the item at the specified <code>sectionIndex</code> and <code>itemIndex</code> (within the section) positioned in the viewable area such that <code>viewPosition</code> 0 places it at the top (and may be covered by a sticky header), 1 at the bottom, and 0.5 centered in the middle. <code>viewOffset</code> is a fixed number of pixels to offset the final target position, e.g. to compensate for sticky headers.</p>
<p>Note: cannot scroll to locations outside the render window without specifying the <code>getItemLayout</code> prop.</p>
<hr>
<h3><a class="anchor" aria-hidden="true" id="recordinteraction"></a><a href="#recordinteraction" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" 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><code>recordInteraction()</code></h3>
<pre><code class="hljs css language-jsx"><span class="token function">recordInteraction</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<p>Tells the list an interaction has occured, which should trigger viewability calculations, e.g. if <code>waitForInteractions</code> is true and the user has not scrolled. This is typically called by taps on items or by navigation actions.</p>
<hr>
<h3><a class="anchor" aria-hidden="true" id="flashscrollindicators"></a><a href="#flashscrollindicators" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" 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><code>flashScrollIndicators()</code></h3>
<pre><code class="hljs css language-jsx"><span class="token function">flashScrollIndicators</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<p>Displays the scroll indicators momentarily.</p>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/0.49/scrollview"><span class="arrow-prev">← </span><span class="function-name-prevnext">ScrollView</span></a><a class="docs-next button" href="/docs/0.49/segmentedcontrolios"><span class="function-name-prevnext">🚧 SegmentedControlIOS</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#props-1">Props</a><ul class="toc-headings"><li><a href="#stickysectionheadersenabled"><code>stickySectionHeadersEnabled</code></a></li></ul></li><li><a href="#methods-1">Methods</a><ul class="toc-headings"><li><a href="#scrolltolocation"><code>scrollToLocation()</code></a></li><li><a href="#recordinteraction"><code>recordInteraction()</code></a></li><li><a href="#flashscrollindicators"><code>flashScrollIndicators()</code></a></li></ul></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><div><h5>Docs</h5><a href="/docs/getting-started">Getting Started</a><a href="/docs/tutorial">Tutorial</a><a href="/docs/components-and-apis">Components and APIs</a><a href="/docs/more-resources">More Resources</a></div><div><h5>Community</h5><a href="/help">The React Native Community</a><a href="/showcase">Who's using React Native?</a><a href="https://stackoverflow.com/questions/tagged/react-native" target="_blank">Ask Questions on Stack Overflow</a><a href="https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md">Contributor Guide</a><a href="https://dev.to/t/reactnative" target="_blank">DEV Community</a></div><div><h5>More Resources</h5><a href="/blog">Blog</a><a href="https://twitter.com/reactnative" target="_blank">Twitter</a><a href="https://github.com/facebook/react-native" target="_blank">GitHub</a><a href="https://reactjs.org" target="_blank">React</a></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 © 2020 Facebook Inc.</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><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><script>
document.addEventListener('keyup', function(e) {
if (e.target !== document.body) {
return;
}
// keyCode for '/' (slash)
if (e.keyCode === 191) {
const search = document.getElementById('search_input_react');
search && search.focus();
}
});
</script><script>
var search = docsearch({
apiKey: '2c98749b4a1e588efec53b2acec13025',
indexName: 'react-native-versions',
inputSelector: '#search_input_react',
algoliaOptions: {"facetFilters":["tags:0.49"],"hitsPerPage":5}
});
</script></body></html>