scanner

package com.axinan.samwise

import android.app.ProgressDialog
import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.content.IntentFilter
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.support.v7.widget.LinearLayoutManager
import android.util.Log
import android.widget.Toast
import com.axinan.samwise.data.API
import com.axinan.samwise.data.model.ReturnProduct
import kotlinx.android.synthetic.main.activity_multiple_items.*
import retrofit2.Call
import retrofit2.Callback
import java.text.FieldPosition

class MultipleItemsActivity : AppCompatActivity() {

    private var scanner: ScannerInterface = ScannerInterface(this)
    private var intentFilter: IntentFilter = IntentFilter()
    private var scanReceiver: BroadcastReceiver = ScannerResultReceiver()
    private val api: API = API()
    private var itemList: ArrayList<ReturnProduct> = ArrayList()
    private var scanningItem: DataHolder.ScanningItemPosition? = DataHolder.ScanningItemPosition(null)


    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_multiple_items)

        actionBar?.setDisplayHomeAsUpEnabled(true)

        itemList = intent.getParcelableArrayListExtra<ReturnProduct>("products")

        stockInItems?.setHasFixedSize(false)
        stockInItems?.layoutManager = LinearLayoutManager(this)
        // init scanner
        initScanner()

        stockInItems.adapter = ItemListAdapter(itemList, "scanItem", scanner, scanningItem, this)
        Toast.makeText(this, itemList[0].axinanId.toString(), Toast.LENGTH_SHORT).show()
    }

    private fun initScanner() {
        scanner.resultScan()
        scanner.enablePlayBeep(true)
        scanner.enableFailurePlayBeep(true)
        scanner.enableAddKeyValue(1)
        scanner.setOutputMode(1)
        scanner.lockScanKey()

        intentFilter = IntentFilter(RES_ACTION)
        scanReceiver = ScannerResultReceiver()
        registerReceiver(scanReceiver, intentFilter)
    }


    override fun onDestroy() {
        super.onDestroy()
        finishScanner()
    }

    private fun finishScanner() {
        scanner.scan_stop()
        unregisterReceiver(scanReceiver)
    }

    private inner class ScannerResultReceiver : BroadcastReceiver() {
        override
        fun onReceive(context: Context, intent: Intent) {
            if (intent.getAction().equals(RES_ACTION)) {
                DisplayProgressDialog()
                val scanResult = intent.getStringExtra("value")
                itemList[scanningItem!!.position!!].axinanId = scanResult
                stockInItems.adapter.notifyItemChanged(scanningItem!!.position!!)
            }
        }

        lateinit var pDialog: ProgressDialog
        fun DisplayProgressDialog() {
            pDialog = ProgressDialog(this@MultipleItemsActivity)
            pDialog!!.setMessage("Loading..")
            pDialog!!.setCancelable(false)
            pDialog!!.isIndeterminate = false
            pDialog!!.show()
        }
    }
    companion object {
        private val RES_ACTION = "android.intent.action.SCANRESULT"
    }
}

notify list changes