focused_area_ocr_flutter

Description:

focused area ocr flutter

focused_area_ocr_flutter #
This is a package to get text in the focused area on the camera.
It is created based on OCR technology by google_mlkit_text_recognition.
Features #
With this package, you can get the text in the focused area on the camera.

Getting started #
iOS #
Add the following code to ios/Runner/Info.plist.
<key>NSCameraUsageDescription</key>
<string>your usage description here</string>
<key>NSMicrophoneUsageDescription</key>
<string>your usage description here</string>
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Edit ios/Runner/Info.plist as follows.
platform :ios, '12.0' # or newer version

...

# add this line:
$iOSVersion = '12.0' # or newer version

post_install do |installer|
# add these lines:
installer.pods_project.build_configurations.each do |config|
config.build_settings["EXCLUDED_ARCHS[sdk=*]"] = "armv7"
config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = $iOSVersion
end

installer.pods_project.targets.each do |target|
flutter_additional_ios_build_settings(target)

# add these lines:
target.build_configurations.each do |config|
if Gem::Version.new($iOSVersion) > Gem::Version.new(config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'])
config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = $iOSVersion
end
end

end
end
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Android #
Edit android/app/build.gradle and set the following sdk version.

minSdkVersion: 21
targetSdkVersion: 33
compileSdkVersion: 33

Usage #
This is an example of a Flutter project using focused_area_ocr_flutter.
See example for details.
import 'dart:async';

import 'package:flutter/material.dart';
import 'package:focused_area_ocr_flutter/focused_area_ocr_view.dart';

class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key}) : super(key: key);

@override
State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
final StreamController<String> controller = StreamController<String>();
final double _textViewHeight = 80.0;

@override
Widget build(BuildContext context) {
final double statusBarHeight = MediaQuery.of(context).viewPadding.top;
final Offset focusedAreaCenter = Offset(
0,
(statusBarHeight + kToolbarHeight + _textViewHeight) / 2,
);
return Scaffold(
backgroundColor: Colors.black,
body: Stack(
children: [
FocusedAreaOCRView(
onScanText: (text) {
controller.add(text);
},
focusedAreaCenter: focusedAreaCenter,
),
Column(
children: [
SizedBox(
height: statusBarHeight + kToolbarHeight,
child: AppBar(
title: const Text('Focused Area OCR Flutter'),
backgroundColor: Colors.blue,
foregroundColor: Colors.white,
),
),
Container(
padding: const EdgeInsets.all(16.0),
width: double.infinity,
height: _textViewHeight,
color: Colors.black,
child: StreamBuilder<String>(
stream: controller.stream,
builder:
(BuildContext context, AsyncSnapshot<String> snapshot) {
return Text(
snapshot.data != null ? snapshot.data! : '',
style: const TextStyle(color: Colors.white),
);
},
),
),
],
),
],
),
);
}
}
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Additional information #
Thanks for loving this package.
I welcome your contribution to this package.