insurance_card_scanner 0.1.2

A library that makes it easy to add health insurance card scanning to any flutter application.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:insurance_card_scanner/insurance_card_scanner.dart';
import 'package:permission_handler/permission_handler.dart';

void main() {
  runApp(const MyApp());
}

// set a valid session token here
const token = 'XXX';

//camera permissions request -- must happen before CardScanModal is created.
Future<void> requestCameraPermission(BuildContext context) async {
  var status = await Permission.camera.status;
  debugPrint("Camera Status - $status");

  status = await Permission.camera.request();

  if (status.isDenied) {
    showMessage(context, 'Camera Access Denied');
  } else {
    debugPrint("Camera Status request - $status");
  }
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Card Scanner Example',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MainScreen(),
    );
  }
}

class MainScreen extends StatelessWidget {
  const MainScreen({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    requestCameraPermission(context);

    return Scaffold(
      appBar: AppBar(
        title: const Text('Card Scanner Example'),
      ),
      body: Center(
        child: Column(
          mainAxisSize: MainAxisSize.max,
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            MaterialButton(
              onPressed: () => showWidget(context),
              child: const Text('Show widget'),
              color: Colors.blue,
              textColor: Colors.white,
            ),
            const SizedBox(height: 40),
            MaterialButton(
              onPressed: () => showModal(context),
              child: const Text('Show modal'),
              color: Colors.green,
              textColor: Colors.white,
            )
          ],
        ),
      ),
    );
  }

  void showWidget(BuildContext context) {
    Navigator.of(context).push(
      MaterialPageRoute(
        builder: (ctx) => const ScannerWidgetScreen(),
      ),
    );
  }

  void showModal(BuildContext context) {
    Navigator.of(context).push(
      CardScanModal(
        sessionToken: token,
        onCardScanSuccess: (card) {
          debugPrint("Scanned card: $card");
          showMessage(context, 'Scan success');
        },
        onCardScanError: (message) {
          showMessage(context, message ?? 'Scan failed');
        },
        onWebViewLoadError: () {
          showMessage(context, 'WebView failed to load');
        },
        onCardScanCancel: () {
          Navigator.of(context).pop();
        },
      ),
    );
  }
}

class ScannerWidgetScreen extends StatelessWidget {
  const ScannerWidgetScreen({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Scanner widget'),
      ),
      body: CardScanner(
        sessionToken: token,
        onCardScanSuccess: (card) {
          debugPrint("Scanned card: $card");
          showMessage(context, 'Scan success');
        },
        onCardScanError: (message) {
          showMessage(context, message ?? 'Scan failed');
        },
        onWebViewLoadError: () {
          showMessage(context, 'WebView failed to load');
        },
        onCardScanCancel: () {
          Navigator.of(context).pop();
        },
      ),
    );
  }
}

void showMessage(BuildContext context, String message) {
  showDialog(
    context: context,
    builder: (ctx) => AlertDialog(
      title: Text(message),
      actions: [
        TextButton(
          onPressed: () => Navigator.of(context).pop(),
          child: const Text("OK"),
        )
      ],
    ),
  );
}