Java tutorial
//package com.java2s; //License from project: Apache License import android.accounts.Account; import android.accounts.AccountManager; import android.content.Context; import android.text.TextUtils; public class Main { /** * Check if exist auth token for specified account * @param context context * @param account account to check * @param authTokenType auth token type * @return <code>true</code> if authToken for this account exist */ public static boolean isAccountEnabled(Context context, Account account, String authTokenType) { if (account == null) return false; final AccountManager accountManager = AccountManager.get(context); String authToken = accountManager.peekAuthToken(account, authTokenType); if (TextUtils.isEmpty(authToken)) { return false; } else { return true; } } }