FacebookFriendlistLoader.java 文件源码

@Override
public List<String> getThirdPartyFriendIds() throws SocialNetworkException {
    if (!isAuthorizedToSocialNetwork()) {
        throw new NotAuthorizedToSocialNetworkException();
    }
    GraphResponse response = new GraphRequest(
        facebookTokenHolder.getToken(),
        FACEBOOK_FRIENDS_GRAPH_PATH,
        Bundle.EMPTY,
        HttpMethod.GET
    ).executeAndWait();

    facebookTokenHolder.clearToken();

    FacebookRequestError responseError = response.getError();
    if (responseError != null) {
        throw new SocialNetworkException("Internal facebook failure: "
            + responseError.getErrorMessage() + " [" + responseError.getErrorCode() + "]");
    }

    return extractFacebookFriendIds(response);
}