Printing.kt
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package com.printer.sdk.serial
import android.bluetooth.BluetoothDevice
import android.content.Context
import android.hardware.usb.UsbDevice
import android.os.Handler
import android.os.Looper
import android.util.Log
import etelligens.com.foodsafety.PrintLabel.PrintClasses.DeviceCallback
import java.io.File
class Printing(private var printer: Printer, val context: Context) {
private lateinit var printables: List<Printable>
private lateinit var messages:String
// 将字符串转换为字节数组
private val byteArray = messages.toByteArray()
private var serialPort = SerialPort(context);
var printingCallback: PrintingCallback? = null
var extraLinesAtEnd: Byte = 0
init {
initSerialCallback()
initDeviceCallback()
}
private fun initSerialCallback() {
serialPort.setSerialPortCallback(object : SerialPortCallback {
override fun onSerialPortTurningOn() {}
override fun onSerialPortOn() {
serialPort.connectToAddress()
}
override fun onSerialPortTurningOff() {}
override fun onSerialPortOff() {}
override fun onUserDeniedActivation() {}
})
}
private fun initDeviceCallback() {
serialPort.setDeviceCallback(object : DeviceCallback {
override fun onDeviceConnected(device: BluetoothDevice) {
}
override fun onDeviceDisconnected(device: BluetoothDevice, message: String) {}
override fun onMessage(message: String) {
}
override fun onError(message: String) {
}
override fun onConnectError(device: BluetoothDevice, message: String) {
}
override fun onSerialDeviceConnected(device: File) {
sendMessage()
printPrintables()
printingCallback?.printingOrderSentSuccessfully()
}
override fun onSerialDeviceDisconnected(device: File, message: String) {
TODO("Not yet implemented")
}
override fun onSerialMessage(message: String) {
printingCallback?.onMessage(message)
}
override fun onSerialError(message: String) {
printingCallback?.onError(message)
}
override fun onSerialConnectError(device: File, message: String) {
printingCallback?.connectionFailed(message)
}
override fun onUsbDeviceConnected(device: UsbDevice) {
TODO("Not yet implemented")
}
override fun onUsbDeviceDisconnected(device: UsbDevice, message: String) {
TODO("Not yet implemented")
}
override fun onUsbMessage(message: String) {
TODO("Not yet implemented")
}
override fun onUsbError(message: String) {
TODO("Not yet implemented")
}
override fun onUsbConnectError(device: UsbDevice, message: String) {
TODO("Not yet implemented")
}
})
}
private fun sendMessage() {
serialPort.send(printer.initPrinterCommand) // init printer
// send message
serialPort.send(byteArray)
//Feed 2 lines to cut the paper
if (extraLinesAtEnd > 0) {
serialPort.send(printer.feedLineCommand.plus(extraLinesAtEnd))
}
Handler(Looper.getMainLooper()).postDelayed({
serialPort.disconnect()
}, 300)
}
private fun printPrintables() {
serialPort.send(printer.initPrinterCommand) // init printer
this.printables.forEach {
it.getPrintableByteArray(printer).forEach { ops ->
serialPort.send(ops)
}
}
//Feed 2 lines to cut the paper
if (extraLinesAtEnd > 0) {
serialPort.send(printer.feedLineCommand.plus(extraLinesAtEnd))
}
Handler(Looper.getMainLooper()).postDelayed({
serialPort.disconnect()
}, 300)
}
fun printMessage(messageStr: String) {
this.messages = messageStr
printingCallback?.connectingWithPrinter()
if (!serialPort.isEnabled) {
serialPort.enable();
}
else{
serialPort.connectToAddress();
}
//serialPort.onStart()
}
fun print(printables: ArrayList<Printable>) {
this.printables = printables
printingCallback?.connectingWithPrinter()
if (!serialPort.isEnabled) serialPort.enable() else serialPort.connectToAddress()
//serialPort.onStart()
}
fun cutPaper() {
var cutData = byteArrayOf(0x1d, 0x56, 0x00)
try {
if (serialPort.isEnabled) serialPort.send(cutData);
} catch (e: Exception) {
e.printStackTrace()
}
}
}