flutter_zxing library

Classes

CameraController: Controls a device camera.
CameraImage: A single complete image buffer from the platform camera.
Code
CodeHitRegion: A detected code together with the on-screen rect it occupies.
Codes
DecodeParams
Encode
EncodeParams
Format
ImageFormat: Pixel formats accepted by the decoder, mirroring ZXing::ImageFormat.
Messages
MultiResultOverlay
MultiScanPainter
Position: Represents the position of a barcode in an image.
ReaderWidget: Widget to scan a code from the camera stream
ScannerOverlayBorder: Universal border for a scanner overlay with a transparent cut-out. cutOutSize > 1 — size in pixels, <= 1 — percentage of the smaller side. Offsets: -1.0..1.0 (left/right, up/down).
WriterWidget: Widget to create a code from a text and barcode format
XFile: A CrossFile is a cross-platform, simplified File abstraction.
Zxing

codeHitRegions(List<Code> codes, Size size, {Offset offset = Offset.zero}) → List<CodeHitRegion>: Maps each code's Position onto the overlay's coordinate space.
convertImage(CameraImage image) → Future<Uint8List>: Extracts the bytes the decoder should scan from a camera frame.
pngFromBytes(Uint8List bytes, int width, int height) → Uint8List: Encodes a single-channel (grayscale) buffer as a PNG.
resizeToMaxSize(Image image, int? maxSize) → Image: Scales image down so that neither side exceeds maxSize, preserving the aspect ratio. Returns image untouched when maxSize is null or not positive, or when the image already fits.
rgbBytes(Image image) → Uint8List: Returns image as a tightly packed 8-bit RGB buffer of width * height * 3 bytes.
tightlyPackedYPlaneFromCameraImage(CameraImage image) → Uint8List: Returns the luminance (Y) plane of image without its row padding.