Open Facebook page from Android app?

Question

from my Android app, I would like to open a link to a Facebook profile in the official Facebook app (if the app is installed, of course). For iPhone, there exists the

Answer 1

As of March 2020 this works perfectly.

private void openFacebookPage(String pageId) {
    String pageUrl = "https://www.facebook.com/" + pageId;

    try {
        ApplicationInfo applicationInfo = getPackageManager().getApplicationInfo("com.facebook.katana", 0);

        if (applicationInfo.enabled) {
            int versionCode = getPackageManager().getPackageInfo("com.facebook.katana", 0).versionCode;
            String url;

            if (versionCode >= 3002850) {
                url = "fb://facewebmodal/f?href=" + pageUrl;
            } else {
                url = "fb://page/" + pageId;
            }

            startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
        } else {
            throw new Exception("Facebook is disabled");
        }
    } catch (Exception e) {
        startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(pageUrl)));
    }
}