ScanningActivity
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package com.printer.sdk.usb
import android.annotation.SuppressLint
import android.app.Activity
import android.bluetooth.BluetoothDevice
import android.content.Context
import android.hardware.usb.UsbDevice
import android.os.Bundle
import android.os.Handler
import android.util.Log
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.*
import androidx.appcompat.app.AppCompatActivity
import androidx.appcompat.widget.Toolbar
import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
import etelligens.com.foodsafety.PrintLabel.PrintClasses.DiscoveryCallback
import etelligens.com.foodsafety.R
import java.io.File
class ScanningActivity : AppCompatActivity() {
private lateinit var usbPort: UsbPort
private var devices = ArrayList<UsbDevice>()
var toolbar: Toolbar? = null
var printers: ListView? = null
// var refreshLayout: SwipeRefreshLayout? = null
private lateinit var usbAdapter: UsbDevicesAdapter
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_scanning)
toolbar = findViewById(R.id.my_toolbar) as Toolbar?
printers = findViewById(R.id.printers)
usbAdapter = UsbDevicesAdapter(this)
usbPort = UsbPort(this)
setup()
}
private fun setup() {
initViews()
initListeners()
initDeviceCallback()
}
private fun initDeviceCallback() {
usbPort.setDiscoveryCallback(object : DiscoveryCallback {
override fun onDiscoveryStarted() {
}
override fun onDiscoveryFinished() {
}
override fun onDeviceFound(device: BluetoothDevice) {
}
override fun onDevicePaired(device: BluetoothDevice) {
// FinalPrint.setPrinter(device.name, device.address)
// Toast.makeText(this@ScanningActivity, "Device Paired", Toast.LENGTH_SHORT).show()
// bluetoothAdapter.notifyDataSetChanged()
// setResult(Activity.RESULT_OK)
// this@ScanningActivity.finish()
}
override fun onDeviceUnpaired(device: BluetoothDevice) {
// Toast.makeText(this@ScanningActivity, "Device unpaired", Toast.LENGTH_SHORT).show()
// val pairedPrinter = FinalPrint.getPairedPrinter()
// if (pairedPrinter != null && pairedPrinter.address == device.address)
// FinalPrint.removeCurrentPrinter()
// devices.remove(device)
// bluetoothAdapter.notifyDataSetChanged()
// bluetooth.startScanning()
}
override fun onError(message: String) {
}
override fun onSerialDiscoveryStarted() {
TODO("Not yet implemented")
}
override fun onSerialDiscoveryFinished() {
TODO("Not yet implemented")
}
override fun onSerialDeviceFound(device: File) {
TODO("Not yet implemented")
}
override fun onSerialDevicePaired(device: File) {
TODO("Not yet implemented")
}
override fun onSerialDeviceUnpaired(device: File) {
TODO("Not yet implemented")
}
override fun onSerialError(message: String) {
TODO("Not yet implemented")
}
override fun onUsbDiscoveryStarted() {
// refreshLayout?.isRefreshing = true
toolbar?.title = "Scanning.."
devices.clear()
// devices.addAll(bluetooth.pairedDevices)
// Log.e("devices===", devices.toString())
usbAdapter.notifyDataSetChanged()
}
override fun onUsbDiscoveryFinished() {
toolbar?.title = if (devices.isNotEmpty()) "Select a Printer" else "No devices"
// refreshLayout?.isRefreshing = false
}
override fun onUsbDeviceFound(device: UsbDevice) {
if (!devices.contains(device)) {
devices.add(device)
usbAdapter.notifyDataSetChanged()
}
}
override fun onUsbError(message: String) {
Toast.makeText(this@ScanningActivity, "Error while pairing", Toast.LENGTH_SHORT).show()
usbAdapter.notifyDataSetChanged()
}
})
}
private fun initListeners() {
// refreshLayout?.setOnRefreshListener { bluetooth.startScanning() }
printers?.setOnItemClickListener { _, _, i, _ ->
val device = devices[i]
val vid=device.vendorId;
val pid=device.productId;
FinalPrint.setPrinter(device.deviceName,"vid:$vid\npid:$pid");
setResult(Activity.RESULT_OK)
this@ScanningActivity.finish()
usbAdapter.notifyDataSetChanged()
}
}
private fun initViews() {
printers?.adapter = usbAdapter
}
override fun onStart() {
super.onStart()
usbPort.onStart()
Handler().postDelayed({
usbPort.startScanning()
}, 1000)
}
override fun onStop() {
super.onStop()
usbPort.onStop()
}
companion object {
const val SCANNING_FOR_PRINTER = 115
}
/* inner class BluetoothDevicesAdapter(private val devices: List<BluetoothDevice>) : RecyclerView.Adapter<BluetoothDevicesAdapter.ViewHolder>() {
// create new views
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
// inflates the card_view_design view
// that is used to hold list item
val view = LayoutInflater.from(parent.context)
.inflate(R.layout.bluetooth_device_row, parent, false)
return ViewHolder(view)
}
// binds the list items to a view
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
val BluetoothDevice = devices[position]
if (devices[position].name.isNullOrEmpty()){
holder.name.setText(devices[position].address)
}else{
holder.name.setText(devices[position].name)
}
when (devices[position].bondState) {
BluetoothDevice.BOND_BONDED -> "Paired"
BluetoothDevice.BOND_BONDING -> "Pairing.."
// sets the image to the imageview from our itemHolder class
// holder.imageView.setImageResource(ItemsViewModel.image)
// sets the text to the textview from our itemHolder class
// holder.textView.text = ItemsViewModel.text
}
// return the number of the items in the list
override fun getItemCount(): Int {
return devices.size
}
// Holds the views for adding it to image and text
inner class ViewHolder(ItemView: View) : RecyclerView.ViewHolder(ItemView) {
val name: TextView = itemView.findViewById(R.id.name)
val deviceStatus: TextView = itemView.findViewById(R.id.pairStatus)
}
}
*/
/* inner class BluetoothDevicesAdapter(private val context: Context, private val device: ArrayList<BluetoothDevice>) : BaseAdapter() {
override fun getCount(): Int {
Log.e("size==", device.size.toString())
return device.size
}
override fun getItem(position: Int): Any {
return position
}
override fun getItemId(position: Int): Long {
return position.toLong()
}
override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
return LayoutInflater.from(context)
.inflate(R.layout.bluetooth_device_row, parent, false).apply {
findViewById<TextView>(R.id.name).text = if (device[position].name.isNullOrEmpty()) device[position].address else device[position].name
findViewById<TextView>(R.id.pairStatus).visibility = if (device[position].bondState != BluetoothDevice.BOND_NONE) View.VISIBLE else View.INVISIBLE
findViewById<TextView>(R.id.pairStatus).text = when (device[position].bondState) {
BluetoothDevice.BOND_BONDED -> "Paired"
BluetoothDevice.BOND_BONDING -> "Pairing.."
else -> ""
}
}
}
}*/
inner class UsbDevicesAdapter(context: Context) : ArrayAdapter<UsbDevice>(context, android.R.layout.simple_list_item_1) {
override fun getCount(): Int {
return devices.size
}
@SuppressLint("ViewHolder", "CutPasteId")
override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
val device = devices[position];
val name=device.deviceName;
val vid=device.vendorId;
val pid=device.productId;
val textShowStr="$name\nvid:$vid,pid:$pid";
return LayoutInflater.from(context)
.inflate(R.layout.bluetooth_device_row, parent, false).apply {
findViewById<TextView>(R.id.name).text = textShowStr;
findViewById<TextView>(R.id.pairStatus).visibility = View.INVISIBLE
// findViewById<TextView>(R.id.pairStatus).text = when (devices[position].bondState) {
// BluetoothDevice.BOND_BONDED -> "Paired"
// BluetoothDevice.BOND_BONDING -> "Pairing.."
// else -> ""
// }
findViewById<ImageView>(R.id.pairedPrinter).visibility = View.GONE
}
}
}
}