We write application layout xml in different layout directories, for example, we put Landscape layout at res/layout-land, Portrait layout at res/layout-port.

Code:
# res/layout/ // Layouts that fit all screens come in here (maybe a mainmenu or so)
# res/layout-land/
# res/layout-land-320x240/
# res/layout-port/
# res/layout-port-320x240/

But, How could the framework knows when to use which xml within your res/layout-xxx directories???
Please help me !!!

Check the resource docs for this, they explain it pretty thouroughly.

MrSnowflake wrote:Check the resource docs for this, they explain it pretty thouroughly.

Thanks but could you please give more clue...
I really googled code.google.com/android but no directly related docs...

If you know...
Thanks ~~