android Dialog大小修改
http://bbs.189works.com/thread-46820-1-1.html
Android中自定义Activity和Dialog的位置大小背景和透明度等
http://blog.csdn.net/assassin4824/article/details/6531410
dialog的宽和高度
http://www.eoeandroid.com/thread-39687-1-1.html
Android自定义Dialog
http://www.cnblogs.com/and_he/archive/2011/09/16/2178716.html
Android自定义对话框(Dialog)位置,大小
http://www.cnblogs.com/angeldevil/archive/2012/03/31/2426242.html