将主活动中的数据流发送到不同类中的线程

Currently I have an app which has code in its main activity that reads data from an xbee. My problem is that I want to relay this data to 4 different threads in 4 different classes throughout my project. I looked into bundling it, but that seems like a one time data transfer, not a stream of it.Currently I have an app which has code in its m