huawei_scan 1.2.2

HUAWEI Scan Flutter Plugin scans all major 1D and 2D barcodes as well as generates barcodes to help you quickly build barcode scanning functions into your apps.

example/lib/main.dart

/*
 * Copyright 2020. Huawei Technologies Co., Ltd. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import 'package:flutter/material.dart';
import 'package:flutter/services.dart' show DeviceOrientation, SystemChrome;

import 'package:huawei_scan/HmsScanLibrary.dart';

import 'package:huawei_scan_example/screens/BuildBitmapScreen.dart';
import 'package:huawei_scan_example/screens/CustomizedViewScreen.dart';
import 'package:huawei_scan_example/screens/DecodeWithBitmapScreen.dart';
import 'package:huawei_scan_example/screens/DefaultViewScreen.dart';
import 'package:huawei_scan_example/screens/MultiProcessorCameraScreen.dart';
import 'package:huawei_scan_example/screens/MultiProcessorScreen.dart';
import 'package:huawei_scan_example/widgets/CustomButton.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  SystemChrome.setPreferredOrientations([
    DeviceOrientation.portraitUp,
  ]);
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: HomeScreen(),
    );
  }
}

class HomeScreen extends StatefulWidget {
  @override
  _HomeScreenState createState() => _HomeScreenState();
}

class _HomeScreenState extends State<HomeScreen> {
  String permissionState = "Permissions Are Not Granted.";
  bool hmsLoggerStatus = true;

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

  permissionRequest() async {
    bool permissionResult =
        await HmsScanPermissions.hasCameraAndStoragePermission();
    if (permissionResult == false) {
      await HmsScanPermissions.requestCameraAndStoragePermissions();
    } else {
      setState(() {
        permissionState = "All Permissions Are Granted";
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.redAccent,
        title: Text("HMS Flutter Scan Kit"),
      ),
      body: SingleChildScrollView(
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            SizedBox(
              height: 12.0,
            ),
            ConstrainedBox(
              constraints: BoxConstraints(
                maxHeight: MediaQuery.of(context).size.height / 8,
              ),
              child: Image.asset(
                "assets/scan_kit_logo.png",
                fit: BoxFit.fitHeight,
              ),
            ),
            Padding(
                padding: const EdgeInsets.all(8.0),
                child: Column(
                  children: [
                    Text(
                      "Huawei Scan Kit Flutter Plugin",
                      textAlign: TextAlign.center,
                      style: TextStyle(fontWeight: FontWeight.bold),
                    ),
                    SizedBox(
                      height: 8.0,
                    ),
                    Text(
                      "HUAWEI Scan Kit scans and parses all major 1D and 2D barcodes, helping you quickly build barcode scanning functions into your apps.",
                      textAlign: TextAlign.center,
                    ),
                  ],
                )),
            SizedBox(
              height: 12.0,
            ),
            Padding(
              padding: const EdgeInsets.all(8.0),
              child: Row(
                mainAxisSize: MainAxisSize.max,
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  Column(
                    children: [
                      Text(
                        "Permission State",
                        style: TextStyle(fontWeight: FontWeight.bold),
                      ),
                      Text(permissionState),
                    ],
                  )
                ],
              ),
            ),
            CustomButton(
              text: "Enable/Disable Hms Logger",
              onPressed: () {
                if (hmsLoggerStatus) {
                  HmsScanUtils.disableLogger();
                  hmsLoggerStatus = false;
                } else {
                  HmsScanUtils.enableLogger();
                  hmsLoggerStatus = true;
                }
              },
            ),
            CustomButton(
              text: "Request Permissions",
              onPressed: () {
                permissionRequest();
              },
            ),
            CustomButton(
              text: "Default View Mode",
              onPressed: () {
                Navigator.push(
                  context,
                  MaterialPageRoute(builder: (context) => DefaultViewScreen()),
                );
              },
            ),
            CustomButton(
              text: "Customized View Mode",
              onPressed: () {
                Navigator.push(
                  context,
                  MaterialPageRoute(
                      builder: (context) => CustomizedViewScreen()),
                );
              },
            ),
            CustomButton(
              text: "Build Bitmap",
              onPressed: () {
                Navigator.push(
                  context,
                  MaterialPageRoute(builder: (context) => BuildBitmapScreen()),
                );
              },
            ),
            CustomButton(
              text: "Decode With Bitmap",
              onPressed: () {
                Navigator.push(
                  context,
                  MaterialPageRoute(
                      builder: (context) => DecodeWithBitmapScreen()),
                );
              },
            ),
            CustomButton(
              text: "Multi Processor Camera",
              onPressed: () {
                Navigator.push(
                  context,
                  MaterialPageRoute(
                      builder: (context) => MultiProcessorCameraScreen()),
                );
              },
            ),
            CustomButton(
              text: "Decode with Multi Processor",
              onPressed: () {
                Navigator.push(
                  context,
                  MaterialPageRoute(
                      builder: (context) => MultiProcessorScreen()),
                );
              },
            ),
            SizedBox(
              height: 30.0,
            ),
          ],
        ),
      ),
    );
  }
}