将sd卡中的xml文件设置为android中的布局

In my application i want to get layout file from server and set that file as content view of activity.I want to know whether it is possible..For this what i had in mind is I'll download file from server and will store it in SD card and will access it from there.But is it possible to set the file as content view..Please help me..In my application i want to get layout file fro