http://android-developers.blogspot.com/2011/07/custom-class-loading-in-dalvik.html
http://my.oschina.net/853294317/blog/308583?fromerr=ROdTOkhs
http://tech.meituan.com/mt-android-auto-split-dex.html
Cookie(或者说是TOKEN过期时),我们应该使用进入登录成功后进入原来的页面 http://blog.csdn.net/ToCpp/article/details/4680946