How to create a semi-transparent instruction page in Android?

Question

I am new to Android and trying to work on this problem for last 2 days but could find a solution. Any help will be highly appreciated. How to create a semi-transparent page for

Answer 1

I have tried to do something similar. I have made message dialog with use of Activity. For this activity I wrote in Manifest:

In the body of this activity I don't have anything special fro transparency.

I hope it will help you.