com.google.zxing.pdf417

类 PDF417Reader

java.lang.Object

com.google.zxing.pdf417.PDF417Reader

所有已实现的接口:

MultipleBarcodeReader, Reader

public final class PDF417Reader
extends java.lang.Object
implements Reader, MultipleBarcodeReader

This implementation can detect and decode PDF417 codes in an image.

作者:

Guenther Grau

构造器概要

构造器

构造器和说明
PDF417Reader()

方法概要

限定符和类型	方法和说明
Result	decode(BinaryBitmap image) Locates and decodes a PDF417 code in an image.
Result	decode(BinaryBitmap image, java.util.Map<DecodeHintType,?> hints) Locates and decodes a barcode in some format within an image.
Result[]	decodeMultiple(BinaryBitmap image)
Result[]	decodeMultiple(BinaryBitmap image, java.util.Map<DecodeHintType,?> hints)
void	reset() Resets any internal state the implementation has after a decode, to prepare it for reuse.

从类继承的方法 java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

PDF417Reader

public PDF417Reader()

方法详细资料

decode

public Result decode(BinaryBitmap image)
              throws NotFoundException,
                     FormatException,
                     ChecksumException

Locates and decodes a PDF417 code in an image.

指定者:

decode 在接口中 Reader

参数:

image - image of barcode to decode

返回:

a String representing the content encoded by the PDF417 code

抛出:

NotFoundException - if a PDF417 code cannot be found,

FormatException - if a PDF417 cannot be decoded

ChecksumException - if a potential barcode is found but does not pass its checksum

decode

public Result decode(BinaryBitmap image,
                     java.util.Map<DecodeHintType,?> hints)
              throws NotFoundException,
                     FormatException,
                     ChecksumException

从接口复制的说明: Reader

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.

指定者:

decode 在接口中 Reader

参数:

image - image of barcode to decode

hints - passed as a Map from DecodeHintType to arbitrary data. The meaning of the data depends upon the hint type. The implementation may or may not do anything with these hints.

返回:

String which the barcode encodes

抛出:

NotFoundException - if no potential barcode is found

FormatException - if a potential barcode is found but format is invalid

ChecksumException - if a potential barcode is found but does not pass its checksum

decodeMultiple

public Result[] decodeMultiple(BinaryBitmap image)
                        throws NotFoundException

指定者:

decodeMultiple 在接口中 MultipleBarcodeReader

抛出:

NotFoundException

decodeMultiple

public Result[] decodeMultiple(BinaryBitmap image,
                               java.util.Map<DecodeHintType,?> hints)
                        throws NotFoundException

指定者:

decodeMultiple 在接口中 MultipleBarcodeReader

抛出:

NotFoundException

reset

public void reset()

从接口复制的说明: Reader

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

指定者:

reset 在接口中 Reader