How to open a page in Facebook app in Android with Flutter (deep link)

Maybe, if you are here, it means that you already tried to launch the Facebook URL of a page failing because the browser is launched instead of the native app.

Well, to open the Facebook app on a specific page it’s quite simple if you know the correct way.

First of all you can use the launchUrlString() method of the url_launcher() package (launch() is deprecated since v6.1.0).

The URL must be in this form:

• “fb://page/page_id” where page_id is the numeric id of the Facebook page
• “fb://profile/profile_id” where profile_id is the numeric id of the Facebook profile

To discover the id (only for pages!) you can simply use the following script:

So the method call should be something like this:

launchUrlString("fb://page/510641739115082"); // For pages
launchUrlString("fb://profile/........"); // For profiles

String pageid = "510641739115082";
Padding(
  padding: EdgeInsets.only(right: 20.0),
  child: IconButton(
    icon: Icon(FontAwesomeIcons.facebook, color: Theme
        .of(context)
        .buttonColor, size: 40.0),
    onPressed: () {
    		String facebookApp = "fb://page/${pageid}";
            canLaunchUrlString(facebookApp).then((canLaunch) {
              if (canLaunch) {
                launchUrlString(facebookApp);
              } else {
               	// Do something else
              }
            });
         });
    },
  ),
)

…and the app will be launched 🙂

Happy coding!

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