Based on your requirement, it sounds like you want to use Background sending. If you enable background sending and have a connection set to stay connected the client will attempt to process transactions in the background upon apply. If the connection is available it will be processed but if not it will retry a set number of times before keeping the transaction on the device until a transmit occurs.
Certainly as Steve indicated, Open UI is the way to go to truly determine your connection state but background sending may get you what you want. The thing to remember about it in context of Work Manager is that many of the transactions don't actually generate until you hit the transmit button since they are bundling up all workorder / notification related events into one transaction. If you are looking for a more real time update if a connection is available you may need to adjust those transactions somewhat.
--Bill
