JAVA / Footsafety-Android

package com.printer.sdk.serial

import android.Manifest
import android.annotation.SuppressLint
import android.app.Activity
import android.app.ProgressDialog
import android.content.Context
import android.content.pm.PackageManager
import android.os.Build
import android.os.Bundle
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 com.gainscha.sdk2.ConnectionListener
import com.gainscha.sdk2.Printer
import com.gainscha.sdk2.PrinterFinder
import com.gainscha.sdk2.model.*
import etelligens.com.foodsafety.R
import etelligens.com.foodsafety.model.MacAddressModal
import java.io.File
import java.io.IOException
import javax.crypto.Mac


class ScanningActivity : AppCompatActivity() {

    private val finder: PrinterFinder = PrinterFinder()

//    private lateinit var serialPort: SerialPort
    private var devices = ArrayList<PrinterDevice>()
    var toolbar: Toolbar? = null
    private lateinit var printers: ListView
    private var progress: ProgressDialog? = null


    // var refreshLayout: SwipeRefreshLayout? = null
    private lateinit var serialAdapter: SerialDevicesAdapter

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_scanning)
        toolbar = findViewById<Toolbar>(R.id.my_toolbar)
        printers = findViewById<ListView>(R.id.printers)
        serialAdapter = SerialDevicesAdapter(this)
//        serialPort = SerialPort(this)
        printers.adapter = serialAdapter
        setup()
    }

    private fun setup() {
        initViews()
        initListeners()
        //initDeviceCallback()

        // add printer connection listener
        //设置输出日志，日志文件
        Printer.setLogEnable(true, File("/sdcard/printer/printer.log"))
        Printer.addConnectionListener(connectionListener)
        // find printer devices(bluetooth wifi usb serial_port)
        if (checkBluetoothPermission()) {
            loaderShow()
            finder.searchPrinters(searchPrinterListener)
        }
    }

    private val connectionListener: ConnectionListener = object : ConnectionListener{

        override fun onPrinterConnected(p0: Printer?) {
            //TODO("Not yet implemented")
            Log.d("ScanningActivity", "onPrinterConnected:$p0")
            runOnUiThread {
                setResult(Activity.RESULT_OK)
                loaderHide()
                finish()
                showToast("Connected")
            }

        }

        override fun onPrinterConnectFail(p0: Printer?) {
            //TODO("Not yet implemented")
            Log.d("ScanningActivity", "onPrinterConnectFail:$p0")
            runOnUiThread {
                loaderHide()
                showToast("connect failed")
            }
        }

        override fun onPrinterDisconnect(p0: Printer?) {
           // TODO("Not yet implemented")
            Log.d("ScanningActivity", "onPrinterDisconnect:$p0")
        }

    }

    private fun showToast(res:String){
        Toast.makeText(this,res,Toast.LENGTH_LONG).show()
    }

    private val searchPrinterListener: PrinterFinder.SearchPrinterResultListener = object :
        PrinterFinder.SearchPrinterResultListener {
        override fun onSearchBluetoothPrinter(device: BluetoothPrinterDevice?) {
            if (device != null) {
                devices.add(device)
                // 获取 SharedPreferences 对象
                val sharedPreferences = getSharedPreferences("connection_printer_mac", Context.MODE_PRIVATE)
                // 获取 SharedPreferences.Editor 对象，用于编辑数据
                val editor = sharedPreferences.edit()
                // 存储数据（键值对）
                editor.putString("mac", device.bluetoothDevice.address) // 存储字符串
                // 应用编辑（提交保存）
                editor.apply()
                serialAdapter.notifyDataSetChanged()
            }

        }

        override fun onSearchUsbPrinter(device: UsbPrinterDevice?) {
            //TODO("Not yet implemented")
            if (device != null) {
                devices.add(device)
                serialAdapter.notifyDataSetChanged()
            }

        }

        override fun onSearchUsbPrinter(device: UsbAccessoryPrinterDevice?) {
            //TODO("Not yet implemented")
        }

        override fun onSearchNetworkPrinter(device: WifiPrinterDevice?) {
            //TODO("Not yet implemented")
        }

        override fun onSearchSerialPortPrinter(device: SerialPortPrinterDevice?) {
            //TODO("Not yet implemented")
        }

        override fun onSearchCompleted() {
           loaderHide()
        }

    }

    private fun initDeviceCallback() {
//        serialPort.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() {
//                // refreshLayout?.isRefreshing = true
//                toolbar?.title = "Scanning.."
//                devices.clear()
//                //   devices.addAll(bluetooth.pairedDevices)
//                //    Log.e("devices===", devices.toString())
//                serialAdapter.notifyDataSetChanged()
//            }
//
//            override fun onSerialDiscoveryFinished() {
//                toolbar?.title = if (devices.isNotEmpty()) "Select a Printer" else "No devices"
//                // refreshLayout?.isRefreshing = false
//            }
//
//            override fun onSerialDeviceFound(device: String) {
////                if (!devices.contains(device)) {
////                    devices.add(device)
////                    serialAdapter.notifyDataSetChanged()
////                }
//            }
//
//            override fun onSerialDevicePaired(device: String) {
//                TODO("Not yet implemented")
//            }
//
//            override fun onSerialDeviceUnpaired(device: String) {
//                TODO("Not yet implemented")
//            }
//            override fun onSerialError(message: String) {
//                Toast.makeText(this@ScanningActivity, "Error while pairing", Toast.LENGTH_SHORT).show()
//                serialAdapter.notifyDataSetChanged()
//            }
//
//            override fun onUsbDiscoveryStarted() {
//
//            }
//
//            override fun onUsbDiscoveryFinished() {
//
//            }
//
//            override fun onUsbDeviceFound(device: UsbDevice) {
//
//            }
//
//            override fun onUsbError(message: String) {
//
//            }
//        })
    }

    private fun initListeners() {
        // refreshLayout?.setOnRefreshListener { bluetooth.startScanning() }
        printers?.setOnItemClickListener { _, _, i, _ ->
            val device = devices[i]
            loaderShow()
            Printer.connect(device)
        }
    }

    private fun initViews() {
        printers?.adapter = serialAdapter

    }


    fun loaderShow() {
        if (progress == null) {
            progress = ProgressDialog(this, R.style.progressTheme)
        }
        progress!!.setTitle("Food Safety")
        progress!!.setMessage(getString(R.string.loading))
        progress!!.show()
    }

    fun loaderHide() {
        if (progress == null) {
            progress = ProgressDialog(this)
        }
        progress!!.dismiss()
    }


    private fun checkBluetoothPermission(): Boolean {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
            return true
        }
        val pms: Array<String> = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
            arrayOf(
                Manifest.permission.BLUETOOTH_SCAN,
                Manifest.permission.BLUETOOTH_CONNECT,
                Manifest.permission.ACCESS_FINE_LOCATION
            )
        } else {
            arrayOf(
                Manifest.permission.BLUETOOTH,
                Manifest.permission.ACCESS_FINE_LOCATION
            )
        }
        for (pm in pms) {
            if (checkSelfPermission(pm) != PackageManager.PERMISSION_GRANTED) {
                requestPermissions(pms, 100)
                return false
            }
        }
        return true
    }

    override fun onRequestPermissionsResult(
        requestCode: Int,
        permissions: Array<String?>,
        grantResults: IntArray
    ) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
        if (requestCode == 100) {
            var grantAll = true
            for (r in grantResults) {
                if (r != PackageManager.PERMISSION_GRANTED) {
                    grantAll = false
                    break
                }
            }
            if (grantAll) {
                finder.searchPrinters(searchPrinterListener)
            }
        }
    }

    override fun onStart() {
        super.onStart()

//        serialPort.onStart()
//        Handler().postDelayed({
//            serialPort.startScanning()
//        }, 1000)


    }

    override fun onStop() {
        super.onStop()
//        serialPort.onStop()
    }

    override fun onDestroy() {
        super.onDestroy()
        // stop find printer device
        finder.stopSearchDevice()
        Printer.removeConnectionListener(connectionListener)
    }

    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 SerialDevicesAdapter(context: Context) : ArrayAdapter<PrinterDevice>(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];
            return LayoutInflater.from(context)
                    .inflate(R.layout.bluetooth_device_row, parent, false).apply {
                        findViewById<TextView>(R.id.name).text = device.printerName
                        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
                    }
        }
    }
}