Abdroid Fb messger chat

fbmessgr.java

    public static void invokeMessenger(Activity activity) {
        try {
            if (AppUtils.isPackageInstalled(activity.getApplicationContext(), "com.facebook.orca")) {

                /**
                 * get id of your facebook page from here:
                 * https://findmyfbid.com/
                 *
                 * Suppose your facebook page url is: http://www.facebook.com/hiponcho
                 *
                 * Visit https://findmyfbid.com/ and put your url and click on "Find Numeric Id"
                 * You will get and ID like this: 788720331154519
                 *
                 * Append an extra 'l' with the number and please
                 * bellow. This is not 1 (one), this is l (l for long)
                 * So, final ID: 788720331154519l
                 */

                activity.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("fb://messaging/" + 788720331154519l))); // replace id
            } else {
                AppUtils.showToast(activity.getApplicationContext(),
                        activity.getApplicationContext().getResources().getString(R.string.install_messenger));
                activity.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://play.google.com/store/apps/details?id=com.facebook.orca")));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }