if you know the basic android applications development it is simple. Jy-mcu simply connect to your UART port ie. p1.1 and p1.2.
You first pair the jy-mcu and bluetooth in your phone .You can get android api in google
In controller side you just send data to jy-mcu as your serial terminal and receive as such
if you are using Energia , type this on setup.
this is for default baud rate .
You can also use an additional serial ie. softwareserial to see the data on bluetooth communication