Called whenever the State.isConnected() value changes for any of the DOF's connections. This method is called immediately for all connections when the listener is added, and then will be called whenever a connection's connected state changes. For each connection, the library guarantees that calls to this method will occur in the same order as the associated state change, so that, for example, if a connection rapidly connects and then disconnects, you won't mistakenly receive the disconnect notification before the connect notification.

void stateChanged(
	DOFRuntime runtime,
	DOFConnection connection,
	DOFConnectionState state
)