native_text_recognition 0.0.2

native_text_recognition: ^0.0.2 copied to clipboard

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:image_picker/image_picker.dart';
import 'package:native_text_recognition/native_text_recognition.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'native_text_recognition Example',
      theme: ThemeData(useMaterial3: true, colorSchemeSeed: Colors.indigo),
      home: const HomePage(),
    );
  }
}

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

  @override
  State<HomePage> createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  final _controller = TextEditingController();
  final _ocr = NativeTextRecognition();
  final _picker = ImagePicker();
  String _status = 'Idle';
  String _result = '';
  bool _busy = false;

  Future<void> _pickImage() async {
    try {
      final xfile = await _picker.pickImage(source: ImageSource.gallery);
      if (xfile != null) {
        _controller.text = xfile.path;
        setState(() {});
      }
    } catch (e) {
      setState(() => _status = 'Picker error: $e');
    }
  }

  Future<void> _run() async {
    final path = _controller.text.trim();
    if (path.isEmpty) {
      setState(() => _status = 'Enter an absolute image path');
      return;
    }
    setState(() {
      _busy = true;
      _status = 'Running OCR...';
      _result = '';
    });
    try {
      final text = await _ocr.recognizeText(path);
      setState(() {
        _status = 'Done';
        _result = text;
      });
    } catch (e) {
      setState(() {
        _status = 'Error: $e';
      });
    } finally {
      setState(() => _busy = false);
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Text Recognition Example')),
      body: Padding(
        padding: const EdgeInsets.all(16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            Row(
              children: [
                Expanded(
                  child: TextField(
                    controller: _controller,
                    decoration: const InputDecoration(
                      labelText: 'Image absolute path',
                      hintText: '/path/to/image.jpg',
                    ),
                  ),
                ),
                const SizedBox(width: 8),
                IconButton(
                  tooltip: 'Pick image',
                  onPressed: _busy ? null : _pickImage,
                  icon: const Icon(Icons.photo_library_outlined),
                ),
              ],
            ),
            const SizedBox(height: 12),
            FilledButton.icon(
              onPressed: _busy ? null : _run,
              icon: const Icon(Icons.text_snippet_outlined),
              label: const Text('Recognize Text'),
            ),
            const SizedBox(height: 12),
            Text(_status, style: Theme.of(context).textTheme.bodySmall),
            const Divider(height: 24),
            Expanded(
              child: SingleChildScrollView(
                child: SelectableText(
                  _result.isEmpty ? 'No result' : _result,
                  style: const TextStyle(fontFamily: 'monospace'),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}