Reader class abstract

Implementations of this interface can decode an image of a barcode in some format into the String it encodes. For example, {@link com.google.zxing.qrcode.QRCodeReader} can decode a QR code. The decoder may optionally receive hints from the caller which may help it decode more quickly or accurately.

See {@link MultiFormatReader}, which attempts to determine what barcode format is present within the image as well, and then decodes it accordingly.

@author Sean Owen @author [e-mail] (Daniel Switkin)

Implementers

• QRCodeReader

Constructors

Reader()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

decode(BinaryBitmap image, {DecodeHints? hints}) → Result

Locates and decodes a barcode in some format within an image. This method also accepts hints, each possibly associated to some data, which may help the implementation decode.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

reset() → void

Resets any internal state the implementation has after a decode, to prepare it for reuse.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited