Pass binary messenger to barcode handler

@@ -2,15 +2,15 @@ package dev.steenbakker.mobile_scanner
 
 import android.os.Handler
 import android.os.Looper
-import io.flutter.embedding.engine.plugins.FlutterPlugin
+import io.flutter.plugin.common.BinaryMessenger
 import io.flutter.plugin.common.EventChannel
 
-class BarcodeHandler(flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) : EventChannel.StreamHandler {
+class BarcodeHandler(binaryMessenger: BinaryMessenger) : EventChannel.StreamHandler {
 
     private var eventSink: EventChannel.EventSink? = null
 
     private val eventChannel = EventChannel(
-        flutterPluginBinding.binaryMessenger,
+        binaryMessenger,
         "dev.steenbakker.mobile_scanner/scanner/event"
     )