Open Serial Port for whole project

[GoogleCodeExporter]

I have more the 10 activity screen in my project. each activiy should access 
the serial port. if i code and move to another activity, i could not send and 
read the serial port. Getting input stream error (Bad File number).


What is the expected output? What do you see instead?


What version of the product are you using? On what operating system?
my operating system is 4.0.

Please provide any additional information below.

Original issue reported on code.google.com by sdling...@gmail.com on 18 Mar 2015 at 4:10