if(session.isOpen()), facebook login on android always returning false

Question

I\'m trying to implement a simple activity in my android application where a user is asked to login via facebook so that the user\'s \'likes\' are retrieved. So obviously fi

Answer 1

I had the similar problem it was the hashkey was wrong in facebook, by following the below code you can get the hash key that has been sent to facebook. Just copy this hashkey and replace it. It will start working.

    try {
        PackageInfo info = getPackageManager().getPackageInfo(
                "your.root.package", 
                PackageManager.GET_SIGNATURES);
        for (Signature signature : info.signatures) {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT));
            }
    } catch (NameNotFoundException e) {

    } catch (NoSuchAlgorithmException e) {

    }