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<!DOCTYPE html><html><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><title>React Native | A framework for building native apps using React</title><meta name="viewport" content="width=device-width"><meta property="og:title" content="React Native | A framework for building native apps using React"><meta property="og:type" content="website"><meta property="og:url" content="http://facebook.github.io/react-native/index.html"><meta property="og:image" content="http://facebook.github.io/react-native/img/opengraph.png?2"><meta property="og:description" content="A framework for building native apps using React"><link rel="shortcut icon" href="/react-native/img/favicon.png?2"><link rel="stylesheet" href="/react-native/css/react-native.css"><script type="text/javascript" src="//use.typekit.net/vqa1hcx.js"></script><script type="text/javascript">try{Typekit.load();}catch(e){}</script></head><body><div class="container"><div class="nav-main"><div class="wrap"><a class="nav-home" href="/react-native/"><img src="/react-native/img/header_logo.png">React Native</a><div class="nav-site-wrapper"><ul class="nav-site nav-site-internal"><li><a href="/react-native/docs/getting-started.html" class="active">Docs</a></li><li><a href="/react-native/support.html" class="">Support</a></li></ul><ul class="nav-site nav-site-external"><li><a href="http://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-section"><h3>Quick Start</h3><ul><li><a style="margin-left:0;" class="" href="/react-native/docs/getting-started.html#content">Getting Started</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/tutorial.html#content">Tutorial</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/videos.html#content">Videos</a></li></ul></div><div class="nav-docs-section"><h3>Guides</h3><ul><li><a style="margin-left:0;" class="" href="/react-native/docs/style.html#content">Style</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/gesture-responder-system.html#content">Gesture Responder System</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/nativemodulesios.html#content">Native Modules (iOS)</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/nativecomponentsios.html#content">Native UI Components (iOS)</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/linking-libraries.html#content">Linking Libraries</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/debugging.html#content">Debugging</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/testing.html#content">Testing</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/runningondevice.html#content">Running On Device</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/embedded-app.html#content">Integration with Existing App</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/javascript-environment.html#content">JavaScript Environment</a></li></ul></div><div class="nav-docs-section"><h3>components</h3><ul><li><a style="margin-left:0;" class="" href="/react-native/docs/activityindicatorios.html#content">ActivityIndicatorIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/datepickerios.html#content">DatePickerIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/image.html#content">Image</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/listview.html#content">ListView</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/mapview.html#content">MapView</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/navigator.html#content">Navigator</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/navigatorios.html#content">NavigatorIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/pickerios.html#content">PickerIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/scrollview.html#content">ScrollView</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/sliderios.html#content">SliderIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/switchios.html#content">SwitchIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/tabbarios.html#content">TabBarIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/tabbarios-item.html#content">TabBarIOS.Item</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/text.html#content">Text</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/textinput.html#content">TextInput</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/touchablehighlight.html#content">TouchableHighlight</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/touchableopacity.html#content">TouchableOpacity</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/touchablewithoutfeedback.html#content">TouchableWithoutFeedback</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/view.html#content">View</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/webview.html#content">WebView</a></li></ul></div><div class="nav-docs-section"><h3>apis</h3><ul><li><a style="margin-left:0;" class="" href="/react-native/docs/alertios.html#content">AlertIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/appregistry.html#content">AppRegistry</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/appstateios.html#content">AppStateIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/asyncstorage.html#content">AsyncStorage</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/cameraroll.html#content">CameraRoll</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/interactionmanager.html#content">InteractionManager</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/layoutanimation.html#content">LayoutAnimation</a></li><li><a style="margin-left:0;" class="active" href="/react-native/docs/linkingios.html#content">LinkingIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/netinfo.html#content">NetInfo</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/panresponder.html#content">PanResponder</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/pixelratio.html#content">PixelRatio</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/pushnotificationios.html#content">PushNotificationIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/statusbarios.html#content">StatusBarIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/stylesheet.html#content">StyleSheet</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/vibrationios.html#content">VibrationIOS</a></li></ul></div><div class="nav-docs-section"><h3>Polyfills</h3><ul><li><a style="margin-left:0;" class="" href="/react-native/docs/flexbox.html#content">Flexbox</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/geolocation.html#content">Geolocation</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/network.html#content">Network</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/timers.html#content">Timers</a></li></ul></div></div><div class="inner-content"><a id="content"></a><h1>LinkingIOS</h1><div><div><p><code>LinkingIOS</code> gives you a general interface to interact with both, incoming
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and outgoing app links.</p><h3><a class="anchor" name="basic-usage"></a>Basic Usage <a class="hash-link" href="#basic-usage">#</a></h3><h4><a class="anchor" name="handling-deep-links"></a>Handling deep links <a class="hash-link" href="#handling-deep-links">#</a></h4><p>If your app was launched from a external url registered to your app you can
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access and handle it from any component you want with</p><div class="prism language-javascript"><span class="token function">componentDidMount<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
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<span class="token keyword">var</span> url <span class="token operator">=</span> LinkingIOS<span class="token punctuation">.</span><span class="token function">popInitialURL<span class="token punctuation">(</span></span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span></div><p>In case you also want to listen to incoming app links during your app's
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execution you'll need to add the following lines to you <code>*AppDelegate.m</code>:</p><div class="prism language-javascript"><span class="token operator">-</span> <span class="token punctuation">(</span>BOOL<span class="token punctuation">)</span>application<span class="token punctuation">:</span><span class="token punctuation">(</span>UIApplication <span class="token operator">*</span><span class="token punctuation">)</span>application openURL<span class="token punctuation">:</span><span class="token punctuation">(</span>NSURL <span class="token operator">*</span><span class="token punctuation">)</span>url sourceApplication<span class="token punctuation">:</span><span class="token punctuation">(</span>NSString <span class="token operator">*</span><span class="token punctuation">)</span>sourceApplication annotation<span class="token punctuation">:</span><span class="token punctuation">(</span>id<span class="token punctuation">)</span>annotation <span class="token punctuation">{</span>
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<span class="token keyword">return</span> <span class="token punctuation">[</span>RCTLinkingManager application<span class="token punctuation">:</span>application openURL<span class="token punctuation">:</span>url sourceApplication<span class="token punctuation">:</span>sourceApplication annotation<span class="token punctuation">:</span>annotation<span class="token punctuation">]</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span></div><p>And then on your React component you'll be able to listen to the events on
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<code>LinkingIOS</code> as follows</p><div class="prism language-javascript"><span class="token function">componentDidMount<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
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LinkingIOS<span class="token punctuation">.</span><span class="token function">addEventListener<span class="token punctuation">(</span></span><span class="token string">'url'</span><span class="token punctuation">,</span> <span class="token keyword">this</span><span class="token punctuation">.</span>_handleOpenURL<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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<span class="token function">componentWillUnmount<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
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LinkingIOS<span class="token punctuation">.</span><span class="token function">removeEventListener<span class="token punctuation">(</span></span><span class="token string">'url'</span><span class="token punctuation">,</span> <span class="token keyword">this</span><span class="token punctuation">.</span>_handleOpenURL<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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<span class="token function">_handleOpenURL<span class="token punctuation">(</span></span>event<span class="token punctuation">)</span> <span class="token punctuation">{</span>
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console<span class="token punctuation">.</span><span class="token function">log<span class="token punctuation">(</span></span>event<span class="token punctuation">.</span>url<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span></div><h4><a class="anchor" name="triggering-app-links"></a>Triggering App links <a class="hash-link" href="#triggering-app-links">#</a></h4><p>To trigger an app link (browser, email or custom schemas) you call</p><div class="prism language-javascript">LinkingIOS<span class="token punctuation">.</span><span class="token function">openURL<span class="token punctuation">(</span></span>url<span class="token punctuation">)</span></div><p>If you want to check if any installed app can handle a given url beforehand you can call</p><div class="prism language-javascript">LinkingIOS<span class="token punctuation">.</span><span class="token function">canOpenURL<span class="token punctuation">(</span></span>url<span class="token punctuation">,</span> <span class="token punctuation">(</span>supported<span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> <span class="token punctuation">{</span>
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<span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token operator">!</span>supported<span class="token punctuation">)</span> <span class="token punctuation">{</span>
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AlertIOS<span class="token punctuation">.</span><span class="token function">alert<span class="token punctuation">(</span></span><span class="token string">'Can\'t handle url: '</span> <span class="token operator">+</span> url<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span>
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LinkingIOS<span class="token punctuation">.</span><span class="token function">openURL<span class="token punctuation">(</span></span>url<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span>
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<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span></div><p><em>The iOS simulator does not support the <code>mailto:</code> and <code>tel:</code> schemas
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because the Mail and Phone apps are not installed - you will need to test
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them on a device.</em></p></div><span><h3><a class="anchor" name="methods"></a>Methods <a class="hash-link" href="#methods">#</a></h3><div class="props"><div class="prop"><h4 class="propTitle"><a class="anchor" name="addeventlistener"></a><span class="propType">static </span>addEventListener<span class="propType">(type: string, handler: Function)</span> <a class="hash-link" href="#addeventlistener">#</a></h4><div><p>Add a handler to LinkingIOS changes by listening to the <code>url</code> event type
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and providing the handler</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="removeeventlistener"></a><span class="propType">static </span>removeEventListener<span class="propType">(type: string, handler: Function)</span> <a class="hash-link" href="#removeeventlistener">#</a></h4><div><p>Remove a handler by passing the <code>url</code> event type and the handler</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="openurl"></a><span class="propType">static </span>openURL<span class="propType">(url: string)</span> <a class="hash-link" href="#openurl">#</a></h4><div><p>Try to open the given <code>url</code> with any of the installed apps.</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="canopenurl"></a><span class="propType">static </span>canOpenURL<span class="propType">(url: string, callback: Function)</span> <a class="hash-link" href="#canopenurl">#</a></h4><div><p>Determine wether or not the an installed app can handle a given <code>url</code>
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The callback function will be called with <code>bool supported</code> as the only argument</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="popinitialurl"></a><span class="propType">static </span>popInitialURL<span class="propType">()</span> <a class="hash-link" href="#popinitialurl">#</a></h4><div><p>If the app launch was triggered by an app link, it will pop the link url,
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