code: public void login(String token) {
          TokenAuth tokenAuth = new TokenAuth(token);
          Object[] methodArgs = new Object[1];
          methodArgs[0] = tokenAuth;
          getDDP().call("login", methodArgs, new DDPListener() {
              @Override
              public void onResult(Map<String, Object> jsonFields) {
                  handleLoginResult(jsonFields);
              }
          });
      }
docs: Logs in using resume token
  @param token resume token