scansdk_flutter_plugin 0.0.3

A new Flutter plugin.

example/lib/main.dart

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

import 'package:flutter/services.dart';
import 'package:flutter_full_pdf_viewer/flutter_full_pdf_viewer.dart';
import 'package:scansdk_flutter_plugin/scanner_configure.dart';
import 'package:scansdk_flutter_plugin/scanner_image_pdf.dart';
import 'package:scansdk_flutter_plugin/scansdk_flutter_plugin.dart';

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'ScanApp Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'ScanApp Flutter Demo'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  static const platform = const MethodChannel('scansdk_flutter_plugin');
  ScannerImagePdf imagePdf = null;

  Future<ScannerImagePdf> _getDocumentScanner() async {
    ScannerConfigure scanner = ScannerConfigure();
    scanner.scannerViewScreen.automaticButton.fontSize = "18";
    scanner.scannerViewScreen.multiplePagesButton.title = "Multiple pages";
    scanner.cropScreen.cancelButton.title = "Cancel";
    scanner.pageReviewScreen.cropLabel.title = "Crop";
    scanner.scannerViewScreen.lightingButton.font =
        "assets/fonts/robotocondensed-light.ttf";

    String str = scanner.toString();
    print("Flutter Object --> " + str);

    ScannerImagePdf imagePdf = null;
    try {
      final String result =
          await platform.invokeMethod('getDocumentScanner', <String, dynamic>{
        'ScanAppConfigure': str,
        'Key': "******* LICENSE_KEY *******",
      });
      Map userMap = jsonDecode(result);
      imagePdf = ScannerImagePdf.fromJson(userMap);
    } on PlatformException catch (ex) {
      print(ex.message);
    } on Exception catch (exp) {
      print(exp.toString());
    }
    setState(() {
      this.imagePdf = imagePdf;
    });
    return imagePdf;
  }

  Widget _getButtonList(BuildContext context, int position) {
    return ElevatedButton(
        child: Text(position == 0 ? "Show PDF" : "Show Images"),
        onPressed: () => {
              // We need to prepare the test PDF, and then we can display the PDF.
              Navigator.push(
                context,
                MaterialPageRoute(
                    builder: (context) => (position == 0)
                        ? FullPdfViewerScreen(imagePdf.pdfPath)
                        : FullImageViewerScreen(imagePdf.lstImages)),
              )
            });
  }

  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(
      appBar: AppBar(
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: Text(widget.title),
      ),
      body: Center(
        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
        child: Column(
          // Column is also a layout widget. It takes a list of children and
          // arranges them vertically. By default, it sizes itself to fit its
          // children horizontally, and tries to be as tall as its parent.
          //
          // Invoke "debug painting" (press "p" in the console, choose the
          // "Toggle Debug Paint" action from the Flutter Inspector in Android
          // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
          // to see the wireframe for each widget.
          //
          // Column has various properties to control how it sizes itself and
          // how it positions its children. Here we use mainAxisAlignment to
          // center the children vertically; the main axis here is the vertical
          // axis because Columns are vertical (the cross axis would be
          // horizontal).
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            ((imagePdf == null)
                ? ElevatedButton(
                    child: Text('Get PDF And Images'),
                    onPressed: () => {
                      // We need to prepare the test PDF, and then we can display the PDF.
                      _getDocumentScanner().then((str) {
                        if (str != null) {
                          _getButtonList(context, 0);
                        }
                      })
                    },
                  )
                : (_getButtonList(context, 0))),
            SizedBox(height: 20),
            ((imagePdf != null) ? _getButtonList(context, 1) : Container()),
          ],
        ),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}

class FullPdfViewerScreen extends StatelessWidget {
  final String pdfPath;

  FullPdfViewerScreen(this.pdfPath);

  @override
  Widget build(BuildContext context) {
    print(this.pdfPath.toString());
    return PDFViewerScaffold(
        appBar: AppBar(
          title: Text("PDF"),
        ),
        path: pdfPath);
  }
}

class FullImageViewerScreen extends StatelessWidget {
  final List<String> lstImages;

  FullImageViewerScreen(this.lstImages);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Images"),
      ),
      body: Scrollbar(
        child: Expanded(
          child: ListView.builder(
            itemCount: lstImages.length,
            padding: EdgeInsets.all(8.0),
            itemBuilder: (context, position) {
              return Card(
                elevation: 1,
                child: ListTile(
                  title: Text(position.toString()),
                  subtitle: Image.memory(base64Decode(lstImages[position])),
                  //onTap: ()=> _navigateToPost(context, lstImages[position]),
                ),
              );
            },
          ),
        ),
      ),
    );
  }
}