* @param clientSecret client secret to use when authenticating with the API
* @param redirectUrl redirect URL to use with OAuth
*/
@Override
public void initializeAuthFlow(Object activity, String clientId, String clientSecret, String redirectUrl) {
client = new BoxClient(clientId, clientSecret, null, null, (new BoxConfigBuilder()).build());
initializeAuthFlow(activity, clientId, clientSecret, redirectUrl, client);
}