android:Quick search

I want implement the search box some what like twitter and IO Conference schedule app.There will be search icon in top bar,when click there will be search box to enter the user query then query will be submit to activity,can any please help me out with steps how to do it need to do in 2.2 Please开发者_JAVA技巧 check this out here http://www.androidtapp.com/wp-content/uploads/2010/05/Twitter-for-Android-Search-120x200.jpg

Thank you.