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Apps</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/building-for-apple-tv">Building For TV Devices</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/running-on-device">Running On Device</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/upgrading">Upgrading to new React Native versions</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/troubleshooting">Troubleshooting</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/native-modules-setup">Native Modules Setup</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Guides (iOS)</h3><ul><li class="navListItem"><a class="navItem" href="/react-native/docs/next/native-modules-ios">Native Modules</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/native-components-ios">Native UI Components</a></li><li class="navListItem"><a class="navItem" 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href="/react-native/docs/next/layoutanimation">LayoutAnimation</a></li><li class="navListItem navListItemActive"><a class="navItem" href="/react-native/docs/next/linking">Linking</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/listviewdatasource">ListViewDataSource</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/netinfo">NetInfo</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/panresponder">PanResponder</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/permissionsandroid">PermissionsAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/pixelratio">PixelRatio</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/pushnotificationios">PushNotificationIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/settings">Settings</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/shadow-props">Shadow Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/share">Share</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/statusbarios">StatusBarIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/stylesheet">StyleSheet</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/systrace">Systrace</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/text-style-props">Text Style Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/timepickerandroid">TimePickerAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/toastandroid">ToastAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/transforms">Transforms</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/vibration">Vibration</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/vibrationios">VibrationIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/next/view-style-props">View Style Props</a></li></ul></div></div></section></div><script>
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document.addEventListener('DOMContentLoaded', function() {
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createToggler('#navToggler', '#docsNav', 'docsSliderActive');
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createToggler('#tocToggler', 'body', 'tocActive');
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const headings = document.querySelector('.toc-headings');
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headings && headings.addEventListener('click', function(event) {
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if (event.target.tagName === 'A') {
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document.body.classList.remove('tocActive');
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}
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}, false);
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function createToggler(togglerSelector, targetSelector, className) {
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var toggler = document.querySelector(togglerSelector);
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var target = document.querySelector(targetSelector);
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toggler.onclick = function(event) {
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event.preventDefault();
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target.classList.toggle(className);
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};
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}
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});
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</script></nav></div><div class="container mainContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/facebook/react-native-website/blob/master/docs/linking.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 class="postHeaderTitle">Linking</h1></header><article><div><span><div class="banner-crna-ejected">
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<h3>Projects with Native Code Only</h3>
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<p>
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This section only applies to projects made with <code>react-native init</code>
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or to those made with Create React Native App which have since ejected. For
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more information about ejecting, please see
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the <a href="https://github.com/react-community/create-react-native-app/blob/master/EJECTING.md" target="_blank">guide</a> on
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the Create React Native App repository.
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</p>
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</div>
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<p><code>Linking</code> gives you a general interface to interact with both incoming and outgoing app links.</p>
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<h3><a class="anchor" aria-hidden="true" id="basic-usage"></a><a href="#basic-usage" 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>Basic Usage</h3>
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<h4><a class="anchor" aria-hidden="true" id="handling-deep-links"></a><a href="#handling-deep-links" 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>Handling deep links</h4>
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<p>If your app was launched from an external url registered to your app you can access and handle it from any component you want with</p>
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<pre><code class="hljs">componentDidMount() {
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Linking.getInitialURL().<span class="hljs-keyword">then</span>(<span class="hljs-function"><span class="hljs-params">(url)</span> =></span> {
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<span class="hljs-keyword">if</span> (url) {
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<span class="hljs-built_in">console</span>.log(<span class="hljs-string">'Initial url is: '</span> + url);
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}
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}).<span class="hljs-keyword">catch</span>(err => <span class="hljs-built_in">console</span>.error(<span class="hljs-string">'An error occurred'</span>, err));
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}
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</code></pre>
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<blockquote>
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<p>For instructions on how to add support for deep linking on Android, refer to <a href="http://developer.android.com/training/app-indexing/deep-linking.html#adding-filters">Enabling Deep Links for App Content - Add Intent Filters for Your Deep Links</a>.</p>
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</blockquote>
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<p>If you wish to receive the intent in an existing instance of MainActivity, you may set the <code>launchMode</code> of MainActivity to <code>singleTask</code> in <code>AndroidManifest.xml</code>. See <a href="http://developer.android.com/guide/topics/manifest/activity-element.html"><code><activity></code></a> documentation for more information.</p>
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<pre><code class="hljs"><activity
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android:<span class="hljs-attribute">name</span>=<span class="hljs-string">".MainActivity"</span>
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android:<span class="hljs-attribute">launchMode</span>=<span class="hljs-string">"singleTask"</span>>
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</code></pre>
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<p>NOTE: On iOS, you'll need to link <code>RCTLinking</code> to your project by following the steps described <a href="/react-native/docs/next/linking-libraries-ios#manual-linking">here</a>. If you also want to listen to incoming app links during your app's execution, you'll need to add the following lines to your <code>*AppDelegate.m</code>:</p>
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<pre><code class="hljs"><span class="hljs-comment">// iOS 9.x or newer</span>
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<span class="hljs-meta">#import <span class="hljs-meta-string"><React/RCTLinkingManager.h></span></span>
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|
||
- (<span class="hljs-built_in">BOOL</span>)application:(<span class="hljs-built_in">UIApplication</span> *)application
|
||
openURL:(<span class="hljs-built_in">NSURL</span> *)url
|
||
options:(<span class="hljs-built_in">NSDictionary</span><<span class="hljs-built_in">UIApplicationOpenURLOptionsKey</span>,<span class="hljs-keyword">id</span>> *)options
|
||
{
|
||
<span class="hljs-keyword">return</span> [RCTLinkingManager application:application openURL:url options:options];
|
||
}
|
||
</code></pre>
|
||
<p>If you're targeting iOS 8.x or older, you can use the following code instead:</p>
|
||
<pre><code class="hljs"><span class="hljs-comment">// iOS 8.x or older</span>
|
||
<span class="hljs-meta">#import <span class="hljs-meta-string"><React/RCTLinkingManager.h></span></span>
|
||
|
||
- (<span class="hljs-built_in">BOOL</span>)application:(<span class="hljs-built_in">UIApplication</span> *)application openURL:(<span class="hljs-built_in">NSURL</span> *)url
|
||
sourceApplication:(<span class="hljs-built_in">NSString</span> *)sourceApplication annotation:(<span class="hljs-keyword">id</span>)annotation
|
||
{
|
||
<span class="hljs-keyword">return</span> [RCTLinkingManager application:application openURL:url
|
||
sourceApplication:sourceApplication annotation:annotation];
|
||
}
|
||
</code></pre>
|
||
<p>If your app is using <a href="https://developer.apple.com/library/prerelease/ios/documentation/General/Conceptual/AppSearch/UniversalLinks.html">Universal Links</a>, you'll need to add the following code as well:</p>
|
||
<pre><code class="hljs"><span class="hljs-selector-tag">-</span> (BOOL)<span class="hljs-selector-tag">application</span><span class="hljs-selector-pseudo">:(UIApplication</span> *)<span class="hljs-selector-tag">application</span> <span class="hljs-selector-tag">continueUserActivity</span><span class="hljs-selector-pseudo">:(NSUserActivity</span> *)<span class="hljs-selector-tag">userActivity</span>
|
||
<span class="hljs-selector-tag">restorationHandler</span><span class="hljs-selector-pseudo">:(void</span> (^)(NSArray * _Nullable))<span class="hljs-selector-tag">restorationHandler</span>
|
||
{
|
||
<span class="hljs-selector-tag">return</span> <span class="hljs-selector-attr">[RCTLinkingManager application:application
|
||
continueUserActivity:userActivity
|
||
restorationHandler:restorationHandler]</span>;
|
||
}
|
||
</code></pre>
|
||
<p>And then on your React component you'll be able to listen to the events on <code>Linking</code> as follows</p>
|
||
<pre><code class="hljs"><span class="hljs-selector-tag">componentDidMount</span>() {
|
||
<span class="hljs-selector-tag">Linking</span><span class="hljs-selector-class">.addEventListener</span>(<span class="hljs-string">'url'</span>, this._handleOpenURL);
|
||
},
|
||
<span class="hljs-selector-tag">componentWillUnmount</span>() {
|
||
<span class="hljs-selector-tag">Linking</span><span class="hljs-selector-class">.removeEventListener</span>(<span class="hljs-string">'url'</span>, this._handleOpenURL);
|
||
},
|
||
<span class="hljs-selector-tag">_handleOpenURL</span>(event) {
|
||
<span class="hljs-selector-tag">console</span><span class="hljs-selector-class">.log</span>(event.url);
|
||
}
|
||
</code></pre>
|
||
<h4><a class="anchor" aria-hidden="true" id="opening-external-links"></a><a href="#opening-external-links" 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>Opening external links</h4>
|
||
<p>To start the corresponding activity for a link (web URL, email, contact etc.), call</p>
|
||
<pre><code class="hljs">Linking.openURL(url).catch(<span class="hljs-keyword">err</span> => console.<span class="hljs-keyword">error</span>('<span class="hljs-keyword">An</span> <span class="hljs-keyword">error</span> occurred', <span class="hljs-keyword">err</span>));
|
||
</code></pre>
|
||
<p>If you want to check if any installed app can handle a given URL beforehand you can call</p>
|
||
<pre><code class="hljs">Linking.canOpenURL(url).then(<span class="hljs-function"><span class="hljs-params">supported</span> =></span> {
|
||
<span class="hljs-keyword">if</span> (!supported) {
|
||
<span class="hljs-built_in">console</span>.log(<span class="hljs-string">'Can\'t handle url: '</span> + url);
|
||
} <span class="hljs-keyword">else</span> {
|
||
<span class="hljs-keyword">return</span> Linking.openURL(url);
|
||
}
|
||
}).catch(<span class="hljs-function"><span class="hljs-params">err</span> =></span> <span class="hljs-built_in">console</span>.error(<span class="hljs-string">'An error occurred'</span>, err));
|
||
</code></pre>
|
||
<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="/react-native/docs/next/linking#constructor"><code>constructor</code></a></li>
|
||
<li><a href="/react-native/docs/next/linking#addeventlistener"><code>addEventListener</code></a></li>
|
||
<li><a href="/react-native/docs/next/linking#removeeventlistener"><code>removeEventListener</code></a></li>
|
||
<li><a href="/react-native/docs/next/linking#openurl"><code>openURL</code></a></li>
|
||
<li><a href="/react-native/docs/next/linking#canopenurl"><code>canOpenURL</code></a></li>
|
||
<li><a href="/react-native/docs/next/linking#getinitialurl"><code>getInitialURL</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="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="constructor"></a><a href="#constructor" 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>constructor()</code></h3>
|
||
<pre><code class="hljs css languages- javascript"><span class="hljs-keyword">constructor</span>();
|
||
</code></pre>
|
||
<hr>
|
||
<h3><a class="anchor" aria-hidden="true" id="addeventlistener"></a><a href="#addeventlistener" 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>addEventListener()</code></h3>
|
||
<pre><code class="hljs css languages- javascript">addEventListener(type, handler);
|
||
</code></pre>
|
||
<p>Add a handler to Linking changes by listening to the <code>url</code> event type and providing the handler</p>
|
||
<hr>
|
||
<h3><a class="anchor" aria-hidden="true" id="removeeventlistener"></a><a href="#removeeventlistener" 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>removeEventListener()</code></h3>
|
||
<pre><code class="hljs css languages- javascript">removeEventListener(type, handler);
|
||
</code></pre>
|
||
<p>Remove a handler by passing the <code>url</code> event type and the handler</p>
|
||
<hr>
|
||
<h3><a class="anchor" aria-hidden="true" id="openurl"></a><a href="#openurl" 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>openURL()</code></h3>
|
||
<pre><code class="hljs css languages- javascript">openURL(url);
|
||
</code></pre>
|
||
<p>Try to open the given <code>url</code> with any of the installed apps.</p>
|
||
<p>You can use other URLs, like a location (e.g. "geo:37.484847,-122.148386" on Android or "<a href="http://maps.apple.com/?ll=37.484847,-122.148386">http://maps.apple.com/?ll=37.484847,-122.148386</a>" on iOS), a contact, or any other URL that can be opened with the installed apps.</p>
|
||
<p>The method returns a <code>Promise</code> object. If the user confirms the open dialog or the url automatically opens, the promise is resolved. If the user cancels the open dialog or there are no registered applications for the url, the promise is rejected.</p>
|
||
<p><strong>Parameters:</strong></p>
|
||
<table>
|
||
<thead>
|
||
<tr><th>Name</th><th>Type</th><th>Required</th><th>Description</th></tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr><td>url</td><td>string</td><td>Yes</td><td>The URL to open.</td></tr>
|
||
</tbody>
|
||
</table>
|
||
<blockquote>
|
||
<p>This method will fail if the system doesn't know how to open the specified URL. If you're passing in a non-http(s) URL, it's best to check {@code canOpenURL} first.</p>
|
||
</blockquote>
|
||
<blockquote>
|
||
<p>For web URLs, the protocol ("http://", "https://") must be set accordingly!</p>
|
||
</blockquote>
|
||
<hr>
|
||
<h3><a class="anchor" aria-hidden="true" id="canopenurl"></a><a href="#canopenurl" 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>canOpenURL()</code></h3>
|
||
<pre><code class="hljs css languages- javascript">canOpenURL(url);
|
||
</code></pre>
|
||
<p>Determine whether or not an installed app can handle a given URL.</p>
|
||
<p>The method returns a <code>Promise</code> object. When it is determined whether or not the given URL can be handled, the promise is resolved and the first parameter is whether or not it can be opened.</p>
|
||
<p><strong>Parameters:</strong></p>
|
||
<table>
|
||
<thead>
|
||
<tr><th>Name</th><th>Type</th><th>Required</th><th>Description</th></tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr><td>url</td><td>string</td><td>Yes</td><td>The URL to open.</td></tr>
|
||
</tbody>
|
||
</table>
|
||
<blockquote>
|
||
<p>For web URLs, the protocol ("http://", "https://") must be set accordingly!</p>
|
||
</blockquote>
|
||
<blockquote>
|
||
<p>As of iOS 9, your app needs to provide the <code>LSApplicationQueriesSchemes</code> key inside <code>Info.plist</code> or canOpenURL will always return false.</p>
|
||
</blockquote>
|
||
<hr>
|
||
<h3><a class="anchor" aria-hidden="true" id="getinitialurl"></a><a href="#getinitialurl" 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>getInitialURL()</code></h3>
|
||
<pre><code class="hljs css languages- javascript">getInitialURL();
|
||
</code></pre>
|
||
<p>If the app launch was triggered by an app link, it will give the link url, otherwise it will give <code>null</code></p>
|
||
<blockquote>
|
||
<p>To support deep linking on Android, refer <a href="http://developer.android.com/training/app-indexing/deep-linking.html#handling-intents">http://developer.android.com/training/app-indexing/deep-linking.html#handling-intents</a></p>
|
||
</blockquote>
|
||
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/react-native/docs/next/layoutanimation">← LayoutAnimation</a><a class="docs-next button" href="/react-native/docs/next/listviewdatasource">ListViewDataSource →</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">Tutorial</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's using React Native?</a><a href="http://stackoverflow.com/questions/tagged/react-native" target="_blank">Stack Overflow</a><a href="https://discuss.reactjs.org" target="_blank">Discussion Forum</a><a href="https://discord.gg/0ZcbPKXt5bZjGY5n">Reactiflux Chat</a></div><div><h5>More</h5><a href="/react-native/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="http://reactjs.org" target="_blank">React</a></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 © 2018 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'));
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