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Description:

scan

scan #

scan qrcode & barcode in widget tree.
decode qrcode & barcode image from path.

if you want to generate qrcode image, you should use qr_flutter

Features #

use ScanView in widget tree to show scan view.
custom identifiable area.
decode qrcode from image path by Scan.parse.

prepare #
ios
info.list
<key>NSCameraUsageDescription</key>
<string>Your Description</string>

<key>io.flutter.embedded_views_preview</key>
<string>YES</string>
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android
<uses-permission android:name="android.permission.CAMERA" />

<application>
<meta-data
android:name="flutterEmbedding"
android:value="2" />
</application>
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scan: ^newest
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import 'package:scan/scan.dart';
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Usage #

show scan view in widget tree

ScanController controller = ScanController();
String qrcode = 'Unknown';

Container(
width: 250, // custom wrap size
height: 250,
child: ScanView(
controller: controller,
// custom scan area, if set to 1.0, will scan full area
scanAreaScale: .7,
scanLineColor: Colors.green.shade400,
onCapture: (data) {
// do something
},
),
),
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you can use controller.resume() and controller.pause() resume/pause camera

controller.resume();
controller.pause();
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get qrcode string from image path

String result = await Scan.parse(imagePath);
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toggle flash light

controller.toggleTorchMode();
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proguard-rules #
-ignorewarnings
-keepattributes *Annotation*
-keepattributes Exceptions
-keepattributes InnerClasses
-keepattributes Signature
-keepattributes SourceFile,LineNumberTable
-keep class com.huawei.hianalytics.**{*;}
-keep class com.huawei.updatesdk.**{*;}
-keep class com.huawei.hms.**{*;}
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License #
MIT License