flutter_imin_lark_scanner

A Flutter plugin for the built-in barcode scanner on iMIN Lark Android devices. It configures the iMIN scanner service for broadcast output and streams scan results to Dart.

Features

  • Configure the iMIN built-in scanner to deliver results via Android broadcast
  • Stream barcode values to Dart through an EventChannel
  • Example app included

Platform support

Platform Support
Android Yes — iMIN Lark devices with the built-in scanner service
iOS Not supported

This plugin communicates with the iMIN scanner API over Android intents and broadcasts. It is intended for iMIN Lark POS / handheld devices only.

Requirements

  • Flutter >=3.3.0
  • Dart ^3.10.7
  • Android minSdk 24
  • iMIN device with the built-in scanner service installed

Installation

Add the dependency to your pubspec.yaml:

dependencies:
  flutter_imin_lark_scanner: ^0.0.1

Then run:

flutter pub get

Usage

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter_imin_lark_scanner/flutter_imin_lark_scanner.dart';

class ScannerPage extends StatefulWidget {
  const ScannerPage({super.key});

  @override
  State<ScannerPage> createState() => _ScannerPageState();
}

class _ScannerPageState extends State<ScannerPage> {
  StreamSubscription<String>? _scanSubscription;

  @override
  void initState() {
    super.initState();

    final scanner = FlutterIminLarkScanner.instance;
    unawaited(scanner.prepare());

    _scanSubscription = scanner.barcodes.listen((barcode) {
      debugPrint('Scanned: $barcode');
    });
  }

  @override
  void dispose() {
    _scanSubscription?.cancel();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return const Scaffold(
      body: Center(child: Text('Scan with the hardware trigger')),
    );
  }
}

Call prepare() once to configure broadcast output and register the native receiver. Listen to barcodes to receive scan results when the hardware scanner is used.

Example

See the example/ app for a complete working demo.

cd example
flutter run

How it works

On Android, the plugin:

  1. Sends a broadcast to configure the iMIN scanner for broadcast output
  2. Registers a receiver for com.imin.scanner.api.RESULT_ACTION
  3. Forwards decoded barcode values to Dart through an EventChannel

Troubleshooting

No scans received

  • Confirm you are running on an iMIN Lark device with the built-in scanner service
  • Call prepare() before listening to barcodes
  • Ensure no other app has exclusive control of the scanner
  • Check logcat for the FLUTTER_IMIN tag

Contributing

Issues and pull requests are welcome in the repository:

https://bitbucket.org/patel-apps/imin_lark_scanner_flutter

License

See LICENSE.

Libraries

flutter_imin_lark_scanner