Electrical Contact to Digital Signal
Easiest way to do this is with a Bluetooth IO module.  You buy a working Bluetooth device (the toughest part of the design).  IO is what translates the switch data into Bluetooth packets.

It is not an out of the box solution though.  You will have to hook up your switches to provide the right voltage to the IO pins.  You will also have to write some code to transfer the data, although there are usually examples that will get you close.

This is not really a beginner's project.  

An example of a Bluetooth IO module is below but may or may not work depending on the specifics of your design.

http://www.connectblue.com/products/bluetooth-products/bluetooth-modules/bluetooth-io-module-obi411/