code_scanner 0.0.3
code_scanner: ^0.0.3 copied to clipboard

scanning qr code by camera & reading from qr code garrely image.

code_scanner #

pub

QR code scanner plugin for flutter. This plugin responds to camera/photo-lirary usage permission requests. This plugin function is Scan/Read. "Scan" is scanning QR code by scanner, "Read" is reading qr code by picking up qr code image from photo library.

iOS #

Support for iOS > 8.0
Please add as follows in info.plist

<key>NSCameraUsageDescription</key>
<string></string>
<key>NSPhotoLibraryUsageDescription</key>
<string></string>
<key>io.flutter.embedded_views_preview</key>
<true/>

Android #

minSdkVersion 23

Please add as follows in Manifest.xml

<manifest ... xmlns:tools="http://schemas.android.com/tools">
                    :
  <uses-sdk tools:overrideLibrary="com.google.zxing.client.android" />
</manifest>

Dependent library #

iOS: MTBBarcodeScanner
Android: zxing-android-embedded

How to use #

View & View Controller #

/// Scan Widget
CodeScanner(
  controller : controller,
  isScanFrame : true, // optional
  scanFrameSize : Size(200, 200), // optional
  frameWidth : 8, // optional
  frameColor : Color(0xcc222222), // optional
)

/// Widget Controller
controller = CodeScannerController();

How to get scan/read data #

How to get scan data #

Listen for scanDataStream.

/// scan data
controller.scanDataStream

How to get read data #

If reading qr image from photo gallery is success, true value flows through isSuccessReadDataStream.
If reading qr image from photo gallery is failure, false value flows through isSuccessReadDataStream.
You can detect read result without isSuccessReadDataStream. You Listen for only readDataStream, it is flowed two value pattern, one is actual read data, another is null when reading is failure

/// flag of successful read
controller.isSuccessReadDataStream

/// read data
controller.readDataStream

Method #

####stop scanning (this method is called on controller dispose method as default.)

await controller.stopScan();
await controller.readDataFromGallery();

Turn on light

await controller.lightON();

Turn off light

await controller.lightOFF();

Toggle light

await controller.toggleLight();
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scanning qr code by camera & reading from qr code garrely image.

Repository (GitHub)
View/report issues

Documentation

API reference

License

MIT (LICENSE)

Dependencies

flutter

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