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react-native/docs/dimensions.html
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Website Deployment Script 811338914c Updated docs for 0.34
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<!DOCTYPE html><html><head><title>Dimensions</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="Dimensions"><meta property="og:url" content="https://facebook.github.io/react-native/index.html"><meta property="og:image" content="http://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"><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" 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href=""><img src="img/header_logo.png">React Native</a><a class="nav-version" href="/react-native/versions.html">0.34</a><div class="nav-site-wrapper"><ul class="nav-site nav-site-internal"><li><a href="docs/getting-started.html" class="active" data-target=".nav-docs">Docs</a></li><li><a href="support.html" class="">Support</a></li><li><a href="showcase.html" class="">Showcase</a></li><li><a href="/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:0;" class="" 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href="docs/panresponder.html">PanResponder</a></li><li><a style="margin-left:0;" class="" href="docs/permissionsandroid.html">PermissionsAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/pixelratio.html">PixelRatio</a></li><li><a style="margin-left:0;" class="" href="docs/pushnotificationios.html">PushNotificationIOS</a></li><li><a style="margin-left:0;" class="" href="docs/settings.html">Settings</a></li><li><a style="margin-left:0;" class="" href="docs/statusbarios.html">StatusBarIOS</a></li><li><a style="margin-left:0;" class="" href="docs/stylesheet.html">StyleSheet</a></li><li><a style="margin-left:0;" class="" href="docs/systrace.html">Systrace</a></li><li><a style="margin-left:0;" class="" href="docs/timepickerandroid.html">TimePickerAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/toastandroid.html">ToastAndroid</a></li><li><a style="margin-left:0;" class="" href="docs/vibration.html">Vibration</a></li><li><a style="margin-left:0;" class="" href="docs/vibrationios.html">VibrationIOS</a></li><li><a style="margin-left:0;" class="" href="docs/layout-props.html">Layout Props</a></li><li><a style="margin-left:0;" class="" href="docs/shadow-props.html">Shadow Props</a></li></ul></div></div></div><div class="inner-content"><a id="content"></a><h1><a class="anchor" name="dimensions"></a>Dimensions <a class="hash-link" href="docs/dimensions.html#dimensions">#</a></h1><div><div></div><span><h3><a class="anchor" name="methods"></a>Methods <a class="hash-link" href="docs/dimensions.html#methods">#</a></h3><div class="props"><div class="prop"><h4 class="methodTitle"><a class="anchor" name="set"></a><span class="methodType">static </span>set<span class="methodType">(dims)</span> <a class="hash-link" href="docs/dimensions.html#set">#</a></h4><div><p>This should only be called from native code by sending the
didUpdateDimensions event.</p><p>@param {object} dims Simple string-keyed object of dimensions to set</p></div></div><div class="prop"><h4 class="methodTitle"><a class="anchor" name="get"></a><span class="methodType">static </span>get<span class="methodType">(dim)</span> <a class="hash-link" href="docs/dimensions.html#get">#</a></h4><div><p>Initial dimensions are set before <code>runApplication</code> is called so they should
be available before any other require&#x27;s are run, but may be updated later.</p><p>Note: Although dimensions are available immediately, they may change (e.g
due to device rotation) so any rendering logic or styles that depend on
these constants should try to call this function on every render, rather
than caching the value (for example, using inline styles rather than
setting a value in a <code>StyleSheet</code>).</p><p>Example: <code>var {height, width} = Dimensions.get(&#x27;window&#x27;);</code></p><p>@param {string} dim Name of dimension as defined when calling <code>set</code>.
@returns {Object?} Value for the dimension.</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/Utilities/Dimensions.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/datepickerandroid.html#content">← Prev</a><a class="docs-next" href="docs/easing.html#content">Next →</a></div></div></section><footer class="wrap"><div class="center">© 2016 Facebook Inc.</div></footer></div><div id="fb-root"></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
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