Flutter文档阅读及RFID识别插件flutter_document_reader_core_fullrfid的使用

Flutter文档阅读及RFID识别插件flutter_document_reader_core_fullrfid的使用

Document Reader Core (Flutter)

Regula Document Reader SDK允许您读取各种类型的身份证件、护照、驾驶执照、身份证等。所有处理都在您的设备上完全离线进行。没有任何数据离开您的设备。

文档

文档可以在这里找到。

示例应用程序

示例应用程序可以在这里找到：https://github.com/regulaforensics/DocumentReader-Flutter。

以下是一个关于如何使用flutter_document_reader_core_fullrfid插件的完整示例demo：

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

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Document Reader Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: DocumentReaderScreen(),
    );
  }
}

class DocumentReaderScreen extends StatefulWidget {
  [@override](/user/override)
  _DocumentReaderScreenState createState() => _DocumentReaderScreenState();
}

class _DocumentReaderScreenState extends State<DocumentReaderScreen> {
  String _result = "Scan a document to see the result";

  // 初始化Document Reader SDK
  void _initDocumentReader() async {
    bool isInitialized = await FlutterDocumentReaderCore.initReader();
    if (isInitialized) {
      print("Document Reader initialized successfully");
    } else {
      print("Failed to initialize Document Reader");
    }
  }

  // 开始扫描文档
  void _startDocumentScanning() async {
    try {
      var result = await FlutterDocumentReaderCore.startRecognition(
          recognitionParams: RecognitionParams());
      setState(() {
        _result = result.toString(); // 显示扫描结果
      });
    } catch (e) {
      print("Error during document scanning: $e");
    }
  }

  [@override](/user/override)
  void initState() {
    super.initState();
    _initDocumentReader(); // 在初始化时启动SDK
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Document Reader'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            ElevatedButton(
              onPressed: _startDocumentScanning, // 按钮点击开始扫描
              child: Text('Start Scanning'),
            ),
            SizedBox(height: 20),
            Text(_result), // 显示扫描结果
          ],
        ),
      ),
    );
  }
}

代码解释

1. 导入必要的包：

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

   这里我们导入了Flutter的基本组件和flutter_document_reader_core插件。

2. 初始化Document Reader SDK：

   void _initDocumentReader() async {
     bool isInitialized = await FlutterDocumentReaderCore.initReader();
     if (isInitialized) {
       print("Document Reader initialized successfully");
     } else {
       print("Failed to initialize Document Reader");
     }
   }
   

   使用initReader()方法初始化SDK，确保在使用前成功初始化。

3. 开始扫描文档：

   void _startDocumentScanning() async {
     try {
       var result = await FlutterDocumentReaderCore.startRecognition(
           recognitionParams: RecognitionParams());
       setState(() {
         _result = result.toString(); // 显示扫描结果
       });
     } catch (e) {
       print("Error during document scanning: $e");
     }
   }
   

   使用startRecognition()方法开始扫描，并将结果显示在界面上。

4. 界面布局：

   [@override](/user/override)
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
         title: Text('Document Reader'),
       ),
       body: Center(
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: <Widget>[
             ElevatedButton(
               onPressed: _startDocumentScanning, // 按钮点击开始扫描
               child: Text('Start Scanning'),
             ),
             SizedBox(height: 20),
             Text(_result), // 显示扫描结果
           ],
         ),
       ),
     );
   }