f7a13682
 “wangming”
项目初始化
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package com.printer.sdk.usb
import android.bluetooth.BluetoothDevice
import android.content.Context
import android.hardware.usb.UsbDevice
import android.os.Handler
import android.os.Looper
import etelligens.com.foodsafety.PrintLabel.PrintClasses.*
import java.io.File
class Printing(private var printer: Printer, val context: Context) {
private lateinit var printables: List<Printable>
private var usbPort = UsbPort(context);
var printingCallback: PrintingCallback? = null
var extraLinesAtEnd: Byte = 0
init {
initUSBCallback()
initDeviceCallback()
}
private fun initUSBCallback() {
usbPort.setUsbPortCallback(object : USBCallback {
override fun onUSBTurningOn() {
TODO("Not yet implemented")
}
override fun onUSBOn() {
usbPort.connectToAddress();
}
override fun onUSBTurningOff() {
TODO("Not yet implemented")
}
override fun onUSBOff() {
TODO("Not yet implemented")
}
override fun onUserDeniedActivation() {
TODO("Not yet implemented")
}
});
}
private fun initDeviceCallback() {
usbPort.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) {
}
override fun onSerialDeviceDisconnected(device: File, message: String) {
TODO("Not yet implemented")
}
override fun onSerialMessage(message: String) {
}
override fun onSerialError(message: String) {
}
override fun onSerialConnectError(device: File, message: String) {
}
override fun onUsbDeviceConnected(device: UsbDevice) {
printPrintables()
printingCallback?.printingOrderSentSuccessfully()
}
override fun onUsbDeviceDisconnected(device: UsbDevice, message: String) {
TODO("Not yet implemented")
}
override fun onUsbMessage(message: String) {
printingCallback?.onMessage(message)
}
override fun onUsbError(message: String) {
printingCallback?.onError(message)
}
override fun onUsbConnectError(device: UsbDevice, message: String) {
printingCallback?.connectionFailed(message)
}
})
}
private fun printPrintables() {
usbPort.send(printer.initPrinterCommand) // init printer
this.printables.forEach {
it.getPrintableByteArray(printer).forEach { ops ->
usbPort.send(ops)
}
}
//Feed 2 lines to cut the paper
if (extraLinesAtEnd > 0) {
usbPort.send(printer.feedLineCommand.plus(extraLinesAtEnd))
}
Handler(Looper.getMainLooper()).postDelayed({
usbPort.disconnect()
}, 2000)
}
fun print(printables: ArrayList<Printable>) {
this.printables = printables
printingCallback?.connectingWithPrinter()
// usbPort.onStart()
if (!usbPort.isEnabled) usbPort.enable() else usbPort.connectToAddress();
}
}
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