start

context

Sets an instance of the Context class for the caller.
Example) Sets Context acquired by getBaseContext() within Activity.

filterOption

In order to filter the search result, set the filter option in the FilterOption type and specify it in the parameter. When null is specified, search is run with the default settings.

The following information is stored in the FilterOption type.

• portType
  Selects the port to search.

• Value	Description
  Discovery.PORTTYPE_ALL (default)	Search for all devices which can be connected via TCP, Bluetooth or USB.
  Discovery.PORTTYPE_TCP	Search for devices connected to the network.
  Discovery.PORTTYPE_BLUETOOTH	Search for devices which can be connected via Bluetooth.
  Discovery.PORTTYPE_USB	Search for devices which can be connected via USB.

• broadcast
  Specify a Broadcast Address for TCP search as a string.

• Value	Description
  "255.255.255.255" (default)	-

• deviceModel
  Specifies the device model to search for.

• Value	Description
  Discovery.MODEL_ALL	Search for all models.

• epsonFilter
  Filters the search result by the Epson printers.
  Search can be performed for printers connected via Bluetooth or USB.

• Value	Description
  Discovery.FILTER_NAME(default)	Filters the search result by the Epson printers.
  Discovery.FILTER_NONE	Does not filter the search result.

• deviceType
  Specifies the device type to search for.
  The device type settings other than "Discovery.TYPE_ALL" can be used for the following systems connected using Wi-Fi or Ethernet.
  • Customer Display Models (SSL/TLS communication only)
  • TM Printer + DM-D + barcode scanner model
  • TM Printer + barcode scanner model
  • POS Terminal Model

• Value	Description
  Discovery.TYPE_ALL (default)	Search for all devices.
  Discovery.TYPE_PRINTER	Search for printers.
  Discovery.TYPE_HYBRID_PRINTER	Searches for hybrid model printers.
  Discovery.TYPE_DISPLAY	Search for customer displays.
  Discovery.TYPE_KEYBOARD	Search for keyboards.
  Discovery.TYPE_SCANNER	Search for barcode scanners.
  Discovery.TYPE_SERIAL	Search for serial communication devices.
  Discovery.TYPE_POS_KEYBOARD	Search for the POS keyboard.
  Discovery.TYPE_MSR	Search for the MSR.
  Discovery.TYPE_GFE	Search for German fiscal element (TSE).
  Discovery.TYPE_OTHER_PERIPHERAL	Search for other peripheral devices.

• bondedDevices
  Specifies the search target when searching for a device that can be connected via Bluetooth.

• Value	Description
  Discovery.TRUE	Search for devices that can be connected, and devices that were previously connected.
  Discovery.FALSE (default)	Search for devices that can be connected.

• usbDeviceName
  Specifies whether to search USB devices by their names or not.

• Value	Description
  Discovery.TRUE	Search for USB compatible devices by their name.
  Discovery.FALSE (default)	Does not search for USB compatible devices by their name.

listener

Specifies an object which has a notification target method.

deviceInfo

The device information of the detected device is stored in the DeviceInfo type.

The following device information is stored.

• deviceType
  The device type is stored.

• Device type	Status
  For a printer	Discovery.TYPE_PRINTER
  For hybrid model printers	Discovery.TYPE_HYBRID_PRINTER
  For a customer display	Discovery.TYPE_DISPLAY
  For a keyboard	Discovery.TYPE_KEYBOARD
  For a barcode scanner	Discovery.TYPE_SCANNER
  For a serial communication device	Discovery.TYPE_SERIAL
  For POS keyboard	Discovery.TYPE_POS_KEYBOARD
  For MSR	Discovery.TYPE_MSR
  For German fiscal element (TSE)	Discovery.TYPE_GFE
  For other peripheral devices	Discovery.TYPE_OTHER_PERIPHERAL

• target
  The connection target of a device which can be specified by connectAPI is stored as a string.
  Example)
  "TCP:192.168.192.168"
  "BT:00:22:15:7D:70:9C"
  "USB:/dev/udev/*"
  "USB:000000000000000000"
  "TCP:192.168.192.168[local_printer]"
  "TCP:192.168.192.168[local_display]"
  "TCP:12:34:56:78:56:78"

• deviceName
  The name set to the device is stored.
  If it could not be acquired, "" (blank character) or "TM Printer" is stored.
  Example)
  For a printer: "TM-T88V"

• ipAddress
  The IP address is stored.
  If it could not be acquired, "" (blank character) is stored.
  Example)
  TCP: "192.168.192.168"
  BT: ""(blank character)

• macAddress
  The MAC address is stored.
  If it could not be acquired, "" (blank character) is stored.
  Example)
  TCP: "12:34:56:78:56:78"
  BT: ""(blank character)

• bdAddress
  The BD address is stored.
  If it could not be acquired, "" (blank character) is stored.
  Example)
  TCP: ""(blank character)
  BT: "12:34:56:78:56:78"