Files
react-native/docs/linking.html
T
2016-02-10 17:00:59 +00:00

58 lines
29 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.
<!DOCTYPE html><html><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><title>Linking React Native | A framework for building native apps using React</title><meta name="viewport" content="width=device-width"><meta property="og:title" content="Linking 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="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"><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><li><a href="https://github.com/facebook/react-native/releases" class="">Releases</a></li><li><a href="http://reactnative.cc" class="">Newsletter</a></li><li><a href="/react-native/showcase.html" class="">Showcase</a></li></ul><div class="algolia-search-wrapper"><input id="algolia-doc-search" 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-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/android-setup.html#content">Android Setup</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/linux-windows-support.html#content">Linux and Windows Support</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/images.html#content">Images</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/animations.html#content">Animations</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/accessibility.html#content">Accessibility</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/direct-manipulation.html#content">Direct Manipulation</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/javascript-environment.html#content">JavaScript Environment</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/navigator-comparison.html#content">Navigator Comparison</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/known-issues.html#content">Known Issues</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/performance.html#content">Performance</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/upgrading.html#content">Upgrading</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/platform-specific-code.html#content">Platform Specific Code</a></li></ul></div><div class="nav-docs-section"><h3>Guides (iOS)</h3><ul><li><a style="margin-left:0;" class="" href="/react-native/docs/native-modules-ios.html#content">Native Modules</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/native-components-ios.html#content">Native UI Components</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/linking-libraries-ios.html#content">Linking Libraries</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/running-on-device-ios.html#content">Running On Device</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/embedded-app-ios.html#content">Integrating with Existing Apps</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/communication-ios.html#content">Communication between native and React Native</a></li></ul></div><div class="nav-docs-section"><h3>Guides (Android)</h3><ul><li><a style="margin-left:0;" class="" href="/react-native/docs/native-modules-android.html#content">Native Modules</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/native-components-android.html#content">Native UI Components</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/running-on-device-android.html#content">Running On Device</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/embedded-app-android.html#content">Integrating with Existing Apps</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/signed-apk-android.html#content">Generating Signed APK</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/android-ui-performance.html#content">Profiling Android UI Performance</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/android-building-from-source.html#content">Building React Native from source</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/drawerlayoutandroid.html#content">DrawerLayoutAndroid</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/modal.html#content">Modal</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/picker.html#content">Picker</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/progressbarandroid.html#content">ProgressBarAndroid</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/progressviewios.html#content">ProgressViewIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/pulltorefreshviewandroid.html#content">PullToRefreshViewAndroid</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/refreshcontrol.html#content">RefreshControl</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/segmentedcontrolios.html#content">SegmentedControlIOS</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/statusbar.html#content">StatusBar</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/switch.html#content">Switch</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/toolbarandroid.html#content">ToolbarAndroid</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/touchablenativefeedback.html#content">TouchableNativeFeedback</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/viewpagerandroid.html#content">ViewPagerAndroid</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/actionsheetios.html#content">ActionSheetIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/alert.html#content">Alert</a></li><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/animated.html#content">Animated</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/appstate.html#content">AppState</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/backandroid.html#content">BackAndroid</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/datepickerandroid.html#content">DatePickerAndroid</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/dimensions.html#content">Dimensions</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/intentandroid.html#content">IntentAndroid</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/linking.html#content">Linking</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/linkingios.html#content">LinkingIOS</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/nativemethodsmixin.html#content">NativeMethodsMixin</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/timepickerandroid.html#content">TimePickerAndroid</a></li><li><a style="margin-left:0;" class="" href="/react-native/docs/toastandroid.html#content">ToastAndroid</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/shadowproptypesios.html#content">ShadowPropTypesIOS</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><li><a style="margin-left:0;" class="" href="/react-native/docs/colors.html#content">Colors</a></li></ul></div></div><div class="inner-content"><a id="content"></a><table width="100%"><tbody><tr><td><h1><a class="anchor" name="linking"></a>Linking <a class="hash-link" href="#linking">#</a></h1></td><td style="text-align:right;"><a target="_blank" href="https://github.com/facebook/react-native/blob/master/Libraries/Linking/Linking.js">Edit on GitHub</a></td></tr></tbody></table><div><div><p><code>Linking</code> gives you a general interface to interact with both incoming
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 an external url registered to your app you can
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>
<span class="token keyword">var</span> url <span class="token operator">=</span> Linking<span class="token punctuation">.</span><span class="token function">getInitialURL<span class="token punctuation">(</span></span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">then<span class="token punctuation">(</span></span>url<span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">&gt;</span> <span class="token punctuation">{</span>
<span class="token keyword">if</span> <span class="token punctuation">(</span>url<span class="token punctuation">)</span> <span class="token punctuation">{</span>
console<span class="token punctuation">.</span><span class="token function">log<span class="token punctuation">(</span></span><span class="token string">&#x27;Initial url is: &#x27;</span> <span class="token operator">+</span> url<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token keyword">catch</span><span class="token punctuation">(</span>err <span class="token operator">=</span><span class="token operator">&gt;</span> console<span class="token punctuation">.</span><span class="token function">error<span class="token punctuation">(</span></span><span class="token string">&#x27;An error occurred&#x27;</span><span class="token punctuation">,</span> err<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span></div><p>NOTE: For instructions on how to add support for deep linking on Android,
refer <a href="http://developer.android.com/training/app-indexing/deep-linking.html#adding-filters" target="_blank">Enabling Deep Links for App Content - Add Intent Filters for Your Deep Links</a>.</p><p>NOTE: For iOS, in case you also want to listen to incoming app links during your app&#x27;s
execution you&#x27;ll need to add the following lines to you <code>*AppDelegate.m</code>:</p><div class="prism language-javascript">#import <span class="token string">&quot;RCTLinkingManager.h&quot;</span>
<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>
<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>
<span class="token punctuation">}</span>
<span class="token comment" spellcheck="true">
// Only if your app is using [Universal Links](https://developer.apple.com/library/prerelease/ios/documentation/General/Conceptual/AppSearch/UniversalLinks.html).
</span><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 continueUserActivity<span class="token punctuation">:</span><span class="token punctuation">(</span>NSUserActivity <span class="token operator">*</span><span class="token punctuation">)</span>userActivity
restorationHandler<span class="token punctuation">:</span><span class="token punctuation">(</span>void <span class="token punctuation">(</span><span class="token operator">^</span><span class="token punctuation">)</span><span class="token punctuation">(</span>NSArray <span class="token operator">*</span> _Nullable<span class="token punctuation">)</span><span class="token punctuation">)</span>restorationHandler
<span class="token punctuation">{</span>
<span class="token keyword">return</span> <span class="token punctuation">[</span>RCTLinkingManager application<span class="token punctuation">:</span>application
continueUserActivity<span class="token punctuation">:</span>userActivity
restorationHandler<span class="token punctuation">:</span>restorationHandler<span class="token punctuation">]</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span></div><p>And then on your React component you&#x27;ll be able to listen to the events on
<code>Linking</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>
Linking<span class="token punctuation">.</span><span class="token function">addEventListener<span class="token punctuation">(</span></span><span class="token string">&#x27;url&#x27;</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>
<span class="token punctuation">}</span><span class="token punctuation">,</span>
<span class="token function">componentWillUnmount<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
Linking<span class="token punctuation">.</span><span class="token function">removeEventListener<span class="token punctuation">(</span></span><span class="token string">&#x27;url&#x27;</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>
<span class="token punctuation">}</span><span class="token punctuation">,</span>
<span class="token function">_handleOpenURL<span class="token punctuation">(</span></span>event<span class="token punctuation">)</span> <span class="token punctuation">{</span>
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>
<span class="token punctuation">}</span></div><p>Note that this is only supported on iOS.</p><h4><a class="anchor" name="opening-external-links"></a>Opening external links <a class="hash-link" href="#opening-external-links">#</a></h4><p>To start the corresponding activity for a link (web URL, email, contact etc.), call</p><div class="prism language-javascript">Linking<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><span class="token keyword">catch</span><span class="token punctuation">(</span>err <span class="token operator">=</span><span class="token operator">&gt;</span> console<span class="token punctuation">.</span><span class="token function">error<span class="token punctuation">(</span></span><span class="token string">&#x27;An error occurred&#x27;</span><span class="token punctuation">,</span> err<span class="token punctuation">)</span><span class="token punctuation">)</span><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">Linking<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><span class="token function">then<span class="token punctuation">(</span></span>supported <span class="token operator">=</span><span class="token operator">&gt;</span> <span class="token punctuation">{</span>
<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>
console<span class="token punctuation">.</span><span class="token function">log<span class="token punctuation">(</span></span><span class="token string">&#x27;Can\&#x27;t handle url: &#x27;</span> <span class="token operator">+</span> url<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span>
<span class="token keyword">return</span> Linking<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>
<span class="token punctuation">}</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token keyword">catch</span><span class="token punctuation">(</span>err <span class="token operator">=</span><span class="token operator">&gt;</span> console<span class="token punctuation">.</span><span class="token function">error<span class="token punctuation">(</span></span><span class="token string">&#x27;An error occurred&#x27;</span><span class="token punctuation">,</span> err<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span></div></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 Linking changes by listening to the <code>url</code> event type
and providing the handler</p><p>@platform ios</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><p>@platform ios</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><p>You can use other URLs, like a location (e.g. &quot;geo:37.484847,-122.148386&quot;), a contact,
or any other URL that can be opened with the installed apps.</p><p>NOTE: This method will fail if the system doesn&#x27;t know how to open the specified URL.
If you&#x27;re passing in a non-http(s) URL, it&#x27;s best to check {@code canOpenURL} first.</p><p>NOTE: For web URLs, the protocol (&quot;http://&quot;, &quot;https://&quot;) must be set accordingly!</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)</span> <a class="hash-link" href="#canopenurl">#</a></h4><div><p>Determine whether or not an installed app can handle a given URL.</p><p>NOTE: For web URLs, the protocol (&quot;http://&quot;, &quot;https://&quot;) must be set accordingly!</p><p>NOTE: As of iOS 9, your app needs to provide the <code>LSApplicationQueriesSchemes</code> key
inside <code>Info.plist</code>.</p><p>@param URL the URL to open</p></div></div><div class="prop"><h4 class="propTitle"><a class="anchor" name="getinitialurl"></a><span class="propType">static </span>getInitialURL<span class="propType">()</span> <a class="hash-link" href="#getinitialurl">#</a></h4><div><p>If the app launch was triggered by an app link with,
it will give the link url, otherwise it will give <code>null</code></p><p>NOTE: 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></div></div></div></span></div><div class="docs-prevnext"><a class="docs-next" href="linkingios.html#content">Next →</a></div></div><noscript></noscript></section><footer class="wrap"><div class="center">© 2016 Facebook Inc.</div></footer></div><div id="fb-root"></div><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','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-41298772-2', 'facebook.github.io');
ga('send', 'pageview');
!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)
){js=d.createElement(s);js.id=id;js.src="https://platform.twitter.com/widgets.js";
fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");
</script><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script src="/react-native/js/scripts.js"></script></body></html>