Check if google authenticator is on device for no account prompt

import android.accounts.AccountManager;

import android.accounts.AccountManagerCallback;

import android.accounts.AccountManagerFuture;

import android.accounts.AuthenticatorDescription;

import android.accounts.AuthenticatorException;

import android.accounts.OperationCanceledException;

import android.app.Activity;

    /**

     * Returns true if the "no account" prompt should be shown

     * (according to {@link SharedPreferences}), otherwise return false.

     * (according to {@link SharedPreferences}), otherwise return false. Since this prompt is

     * Google-specific for the time being, this method will also return false if the Google

     * account type is not available from the {@link AccountManager}.

     */

    public static boolean shouldShowAccountPrompt(Context context) {

        // TODO: Remove the filtering of account types once there is an API in

        // {@link AccountManager} to show a similar account prompt

        // (see {@link AccountManager#addAccount()} in {@link #launchAccountPrompt()}

        // for any type of account. Bug: 5375902

        AuthenticatorDescription[] allTypes =

                AccountManager.get(context).getAuthenticatorTypes();

        for (AuthenticatorDescription authenticatorType : allTypes) {

            if (GoogleAccountType.ACCOUNT_TYPE.equals(authenticatorType.type)) {

                return getSharedPreferences(context).getBoolean(KEY_SHOW_ACCOUNT_PROMPT, true);

            }

        }

        return false;

    }

    /**

     * Remember to never show the "no account" prompt again by saving this to