Facebook/react-native
1
0
Fork 0
mirror of https://github.com/facebook/react-native.git synced 2025-11-01 09:14:26 +00:00
Code Issues Packages Projects Releases Wiki Activity
Files
32f33acc095fb6e26558ee33b14fc73cc386edaf
react-native/docs/next/backhandler.html
T
Website Deployment Script 9c3c17b00b Deploy website 
Deploy website version based on d4917c68cb
2017-12-19 17:55:27 +00:00

60 lines
28 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
<html><head><meta charset="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1"/><title>BackHandler · React Native</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta property="og:title" content="BackHandler · 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="Detect hardware button presses for back navigation."/><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>APIs</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"><a class="navItem" 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/building-for-apple-tv.html">Building For TV Devices</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/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 navListItemActive"><a class="navItem navItemActive" 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" href="/react-native/docs/next/permissionsandroid.html">PermissionsAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/pixelratio.html">PixelRatio</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/pushnotificationios.html">PushNotificationIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/settings.html">Settings</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/shadow-props.html">Shadow Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/share.html">Share</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/statusbarios.html">StatusBarIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/stylesheet.html">StyleSheet</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/systrace.html">Systrace</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/text-style-props.html">Text Style Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/timepickerandroid.html">TimePickerAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/toastandroid.html">ToastAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/transforms.html">Transforms</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/vibration.html">Vibration</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/vibrationios.html">VibrationIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/view-style-props.html">View Style Props</a></li></ul></div></div></section></div><script>
var toggler = document.getElementById('navToggler');
var nav = document.getElementById('docsNav');
toggler.onclick = function() {
nav.classList.toggle('docsSliderActive');
};
</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/backhandler.md" target="_blank">Edit</a><h1>BackHandler</h1></header><article><div><span><p>Detect hardware button presses for back navigation.</p>
<p>Android: Detect hardware back button presses, and programmatically invoke the default back button functionality to exit the app if there are no listeners or if none of the listeners return true.</p>
<p>tvOS: Detect presses of the menu button on the TV remote. (Still to be implemented: programmatically disable menu button handling functionality to exit the app if there are no listeners or if none of the listeners return true.)</p>
<p>iOS: Not applicable.</p>
<p>The event subscriptions are called in reverse order (i.e. last registered subscription first), and if one subscription returns true then subscriptions registered earlier will not be called.</p>
<p>Example:</p>
<pre><code class="hljs css javascript">BackHandler.addEventListener(<span class="hljs-string">'hardwareBackPress'</span>, <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params"></span>) </span>{
<span class="hljs-comment">// this.onMainScreen and this.goBack are just examples, you need to use your own implementation here</span>
<span class="hljs-comment">// Typically you would use the navigator here to go to the last state.</span>
<span class="hljs-keyword">if</span> (!<span class="hljs-keyword">this</span>.onMainScreen()) {
<span class="hljs-keyword">this</span>.goBack();
<span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>;
}
<span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>;
});
</code></pre>
<h3><a class="anchor" aria-hidden="true" name="methods"></a><a href="#methods" 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>Methods</h3>
<ul>
<li><a href="/react-native/docs/next/backhandler.html#exitapp"><code>exitApp</code></a></li>
<li><a href="/react-native/docs/next/backhandler.html#addeventlistener"><code>addEventListener</code></a></li>
<li><a href="/react-native/docs/next/backhandler.html#removeeventlistener"><code>removeEventListener</code></a></li>
</ul>
<hr>
<h1><a class="anchor" aria-hidden="true" name="reference"></a><a href="#reference" 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>Reference</h1>
<h2><a class="anchor" aria-hidden="true" name="methods"></a><a href="#methods" 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>Methods</h2>
<h3><a class="anchor" aria-hidden="true" name="exitapp"></a><a href="#exitapp" 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><code>exitApp()</code></h3>
<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> exitApp()
</code></pre>
<hr>
<h3><a class="anchor" aria-hidden="true" name="addeventlistener"></a><a href="#addeventlistener" 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><code>addEventListener()</code></h3>
<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> addEventListener(eventName, handler)
</code></pre>
<hr>
<h3><a class="anchor" aria-hidden="true" name="removeeventlistener"></a><a href="#removeeventlistener" 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><code>removeEventListener()</code></h3>
<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> removeEventListener(eventName, handler)
</code></pre>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="backandroid.html">← BackAndroid</a><a class="docs-next button" href="cameraroll.html">CameraRoll →</a></div></div></div></div><footer class="nav-footer" id="footer"><section class="sitemap"><a href="/react-native/" class="nav-home"><img src="/react-native/img/header_logo.png" alt="React Native" width="66" height="58"/></a><div><h5><a href="/react-native/docs/getting-started.html">Docs</a></h5><a href="/react-native/docs/getting-started.html">Getting Started</a><a href="/react-native/docs/tutorial.html">Learn the Basics</a><a href="/react-native/docs/components-and-apis.html">Components and APIs</a><a href="/react-native/docs/more-resources.html">More Resources</a></div><div><h5><a href="/react-native/help.html">Community</a></h5><a href="/react-native/showcase.html">Who&#x27;s using React Native?</a><a href="http://www.meetup.com/topics/react-native/" target="_blank">Meetups</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/help.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="http://reactjs.org" target="_blank">React</a><a href="https://github.com/facebook/react-native" target="_blank">GitHub</a><div class="githubButton"><a class="github-button" href="https://github.com/facebook/react-native" data-icon="octicon-star" data-show-count="true" data-count-href="/facebook/react-native/stargazers" data-count-api="/repos/facebook/react-native#stargazers_count" data-count-aria-label="# stargazers on GitHub" aria-label="Star facebook/react-native on GitHub">Star</a></div></div></section><a href="https://code.facebook.com/projects/" target="_blank" class="fbOpenSource"><img src="/react-native/img/oss_logo.png" alt="Facebook Open Source" width="170" height="45"/></a><section class="copyright">Copyright © 2017 Facebook Inc.</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><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>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>
var search = docsearch({
apiKey: '2c98749b4a1e588efec53b2acec13025',
indexName: 'react-native-versions',
inputSelector: '#search_input_react',
algoliaOptions: {"facetFilters":["tags:next"],"hitsPerPage":5}
});
</script></body></html>
Reference in New Issue View Git Blame Copy Permalink