Send button halts until file is uploded to the server?

I am uploding files from my phone to the server when i click on the send button the开发者_如何学Go activity hangs up until the complete file gets uploaded on the server..how to remove this behavior..should i use a broadcast for this or something else..Plz suggest.

the code for sending the file is inside the on click method of the button.

http://developer.android.com/resources/articles/painless-threading.html describes how to property do long-running operations in Android without hanging up UI