C:\projects_rust\sgbstock\sgbstock\android\app\src\main\kotlin\com\sgbstock\sgbstock\MainActivity.kt
package com.sgbstock.sgbstockimport android.content.IntentFilter
import android.util.Log
import io.flutter.embedding.android.FlutterActivity
import io.flutter.embedding.engine.FlutterEngine
import io.flutter.plugin.common.EventChannelclass MainActivity : FlutterActivity() {companion object {private const val TAG = "MainActivity"private const val CHANNEL = "barcode_scanner/event"}private lateinit var eventSink: EventChannel.EventSinkprivate lateinit var barcodeReceiver: BarcodeBroadcastReceiveroverride fun configureFlutterEngine(flutterEngine: FlutterEngine) {super.configureFlutterEngine(flutterEngine)// Initialize EventChannelval channel = EventChannel(flutterEngine.dartExecutor.binaryMessenger, CHANNEL)channel.setStreamHandler(object : EventChannel.StreamHandler {override fun onListen(arguments: Any?, events: EventChannel.EventSink?) {Log.d(TAG, "EventChannel onListen")eventSink = events!!registerBroadcastReceiver()}override fun onCancel(arguments: Any?) {Log.d(TAG, "EventChannel onCancel")unregisterBroadcastReceiver()}})}private fun registerBroadcastReceiver() {// Create broadcast receiver with callbackbarcodeReceiver = BarcodeBroadcastReceiver {sendBarcodeToFlutter(it)}// Create intent filter for barcode scanner broadcastsval filter = IntentFilter()filter.addAction("com.android.decodewedge.decode_action")filter.addAction("com.symbol.datawedge.api.NOTIFICATION_ACTION")filter.addAction("com.zebra.scan.service.BARCODE_DECODED")filter.addAction("com.sunmi.scanner.ACTION_DATA_CODE_RECEIVED")filter.addAction("com.xcheng.scanner.action.BARCODE_DECODING_BROADCAST")// Register broadcast receiverregisterReceiver(barcodeReceiver, filter)Log.d(TAG, "Broadcast receiver registered")}private fun unregisterBroadcastReceiver() {try {unregisterReceiver(barcodeReceiver)Log.d(TAG, "Broadcast receiver unregistered")} catch (e: Exception) {Log.e(TAG, "Error unregistering receiver: ${e.message}")}}private fun sendBarcodeToFlutter(barcode: String) {if (::eventSink.isInitialized) {Log.d(TAG, "Sending barcode to Flutter: $barcode")eventSink.success(mapOf("barcode" to barcode))}}override fun onDestroy() {super.onDestroy()// Ensure broadcast receiver is unregisteredtry {unregisterBroadcastReceiver()} catch (e: Exception) {// Ignore if already unregistered}}
}
C:\projects_rust\sgbstock\sgbstock\android\app\src\main\kotlin\com\sgbstock\sgbstock\BarcodeBroadcastReceiver.kt
package com.sgbstock.sgbstockimport android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.util.Logclass BarcodeBroadcastReceiver(private val callback: (String) -> Unit) : BroadcastReceiver() {companion object {private const val TAG = "BarcodeBroadcastReceiver"// Common broadcast actions for barcode scannersprivate val ACTIONS = arrayOf("com.android.decodewedge.decode_action","com.symbol.datawedge.api.NOTIFICATION_ACTION","com.zebra.scan.service.BARCODE_DECODED","com.sunmi.scanner.ACTION_DATA_CODE_RECEIVED","com.xcheng.scanner.action.BARCODE_DECODING_BROADCAST")}override fun onReceive(context: Context, intent: Intent) {val action = intent.actionLog.d(TAG, "Received broadcast: $action")// Try to extract barcode from common intent extrasval barcode = extractBarcode(intent)if (barcode.isNotEmpty()) {Log.d(TAG, "Extracted barcode: $barcode")callback(barcode)}}private fun extractBarcode(intent: Intent): String {// Try common extra keys for barcode dataval extras = intent.extrasif (extras != null) {// Common keys for barcode dataval barcodeKeys = arrayOf("com.android.decode.intentwedge.barcode_string","com.android.decode.intentwedge.barcode_data","com.symbol.datawedge.data_string","com.zebra.scan.service.BARCODE","data","source_byte","EXTRA_BARCODE_DECODING_DATA")for (key in barcodeKeys) {val value = extras.getString(key)if (value != null && value.isNotEmpty()) {return value}}// Also try getStringExtra directlyfor (key in barcodeKeys) {val value = intent.getStringExtra(key)if (value != null && value.isNotEmpty()) {return value}}}return ""}
}