how to set shadow to a View in android?

Question

I want to know how to add a shadow layer to any general View in android. for eg: suppose i have a layout xml, showing something like this..

Answer 1

Assuming u would use a linear layout(i have considered a vertical linear layout)..and have a view just below your linear layout.Now for this view provide a start colour and end colour.. I also wanted to get this thing,its working for me..If you need a even better effect,then just work around the start and end colour.

activity_main

layout_back_bgn.xml

shadow.xml

I tried to post an image which i have it after using the above code,but stackoverflow doesnot allow me coz i dont have reputation..Sorry about that.