Reference website:
Sina Weibo: https://github.com/sinaweibosdk/weibo_android_sdk
QQ:http://wiki.connect.qq.com/sdk%E4%B8%8B%E8%BD%BD
WeChat: https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&id=open1419317851&token=&lang=zh_CN