onUnexpectedReaderDisconnect
The Terminal disconnected unexpectedly from the reader.
In your implementation of this method, you may want to notify your user that the reader disconnected. You may also call Terminal.discoverReaders to begin scanning for readers, and attempt to automatically reconnect to the disconnected reader. Be sure to either set a timeout or make it possible to cancel calls to Terminal.discoverReaders
When connected to a Bluetooth or USB reader, you can get more information about the disconnect by implementing the ReaderListener.onDisconnect method.
Parameters
reader
The previously connected reader.