Здесь приведен код, который автоматически активирует учетную запись
final AccountManager accountManager = AccountManager.get(this);
String authority = getString(R.string.acc_authority);
String accountType = getString(R.string.acc_name);
String accountName = getString(R.string.app_name);
Account[] existingAccs = accountManager.getAccountsByType(accountType);
if (existingAccs.length > 0) {
return;
}
Account account = new Account(accountName, accountType);
if (accountManager.addAccountExplicitly(account, null, null)) {
ContentResolver.setIsSyncable(account, authority, 1);
ContentResolver.setSyncAutomatically(account, authority, true);
ContentResolver.requestSync(account, authority, new Bundle());
ContentResolver.addPeriodicSync(account, authority, new Bundle(), 60*10);
}