http://www.blogjava.net/zhaojianhua/archive/2012/02/09/369676.html
Android平板开发精确适配不同的dpi和屏幕尺寸http://blog.csdn.net/chenliangyin_love/article/details/8593299
Supporting Multiple Screens
http://developer.android.com/guide/practices/screens_support.html
android project 文件夹
原文：http://www.cnblogs.com/xiaokang088/p/4054491.html
