How to avoid already-authorized in Android Facebook SDK

Question

I\'m getting a completely useless page when I use the Single Sign on for Facebook\'s Android SDK.

\"You have already authorized happyapp. Press \"O

Answer 1

I ran into this issue after any device had authorized my app with facebook. My emulator continued to work perfectly but I could not get the phone to get past the "okay" dialog screen and do anything meaningful. I added the facebook.FORCE_DIALOG_AUTH parameter to the authorize() call. Now it asks me to login once per device and sets the TOKEN and expiration in shared preferences as it should.

Button button_facebook = (Button) findViewById(R.id.button_share_on_facebook);
button_facebook.setOnClickListener(new View.OnClickListener() {
    public void onClick(View arg0) {
        if (access_token != null) {
            facebook.setAccessToken(access_token);
        }

        if (expires != 0) {
            facebook.setAccessExpires(expires);
        }

        if (!facebook.isSessionValid()) {
            facebook.authorize(YourActivity.this, new String[] { "user_photos,publish_checkins,publish_actions,publish_stream" }, facebook.FORCE_DIALOG_AUTH, new DialogListener() {
                @Override
                public void onComplete(Bundle values) {
                    SharedPreferences mPrefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
                    SharedPreferences.Editor editor = mPrefs.edit();
                    editor.putString("access_token", facebook.getAccessToken());
                    editor.putLong("access_expires", facebook.getAccessExpires());
                    editor.commit();
                    postSomethingToFacebook();
                }

                @Override
                public void onFacebookError(FacebookError e) {
                    Log.e("Facebook-Authorize", "FacebookError Error: " + e.getMessage());
                }

                @Override
                public void onError(DialogError e) {
                    Log.e("Facebook-Authorize", "DialogError Error: "   + e.getMessage());
                }

                @Override
                public void onCancel() {
                    Log.w("Facebook-Authorize", "Cancelled.");
                }
            });
        } else {
            postSomethingToFacebook();
        }
});