Android application using Zephyr HXM BT sensor -- 2

I am working on an Android project which has the purpose to connect the mobile device to a Bluetooth sensor (Zephyr HXM BT) and receive and manipulate the data from it. I have succeeded in connecting the sensor to my device but I have difficulties in receiving the data and working with it. I have added the archive of my current state of code and here is a link from where much more can be used in order to do what must be done [login to view URL] What you must do is to get the data from the sensor and save them in a database in the device and show them on a chart on device's screen