b比較常用的2中彈窗 →
csdn資源:http://download.csdn.net/detail/knowingnow/9449589
git 資源:https://github.com/kolyvan/kxmenu
CSDN資源:http://download.csdn.net/detail/knowingnow/9449620
git 資源 :https://github.com/martinjuhasz/MJPopupViewController
注:使用方法自己百度搜一下很多^_^