how to show a drop down like face book chat head in android

Question

I need to show a drop down view when user clicks on icon. ]1

How can i design please help me

Answer 1

You can check this:

How is Facebook Chat Heads implemented?

What APIs in Android is Facebook using to create Chat Heads?

The one which I refered is

http://www.piwai.info/chatheads-basics/

http://myandroidtuts.blogspot.in/2013/05/facebook-chat-heads-feature.html

You can bring the ICon on Home screen and based on the click event you can attach more Views to the same.