react-native/website/_versioned_docs/version-0.20/linkingios.md

id, original_id, title

id	original_id	title
version-0.20-linkingios	linkingios	linkingios

LinkingIOS #

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NOTE: LinkingIOS is being deprecated. Use Linking instead.

LinkingIOS gives you a general interface to interact with both incoming and outgoing app links.

Basic Usage #

Handling deep links #

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

componentDidMount() { var url = LinkingIOS.popInitialURL(); }

In case you also want to listen to incoming app links during your app's execution you'll need to add the following lines to you AppDelegate.m:

- (BOOL)application:(UIApplication )application openURL:(NSURL )url sourceApplication:(NSString )sourceApplication annotation:(id)annotation { return [RCTLinkingManager application:application openURL:url sourceApplication:sourceApplication annotation:annotation]; } // Only if your app is using Universal Links. - (BOOL)application:(UIApplication )application continueUserActivity:(NSUserActivity )userActivity restorationHandler:(void (^)(NSArray * _Nullable))restorationHandler { return [RCTLinkingManager application:application continueUserActivity:userActivity restorationHandler:restorationHandler]; }

And then on your React component you'll be able to listen to the events on LinkingIOS as follows

componentDidMount() { LinkingIOS.addEventListener('url', this._handleOpenURL); }, componentWillUnmount() { LinkingIOS.removeEventListener('url', this._handleOpenURL); }, _handleOpenURL(event) { console.log(event.url); }

Triggering App links #

To trigger an app link (browser, email or custom schemas), call

LinkingIOS.openURL(url)

If you want to check if any installed app can handle a given URL beforehand, call

LinkingIOS.canOpenURL(url, (supported) => { if (!supported) { AlertIOS.alert('Can't handle url: ' + url); } else { LinkingIOS.openURL(url); } });

Methods #

static addEventListener(type: string, handler: Function) #

Add a handler to LinkingIOS changes by listening to the url event type and providing the handler

@deprecated

static removeEventListener(type: string, handler: Function) #

Remove a handler by passing the url event type and the handler

@deprecated

static openURL(url: string) #

Try to open the given url with any of the installed apps.

@deprecated

static canOpenURL(url: string, callback: Function) #

Determine whether or not an installed app can handle a given URL. The callback function will be called with bool supported as the only argument

NOTE: As of iOS 9, your app needs to provide the LSApplicationQueriesSchemes key inside Info.plist.

@deprecated

static popInitialURL() #

If the app launch was triggered by an app link, it will pop the link url, otherwise it will return null

@deprecated

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