org.tio.utils.qr

类 QRCode

java.lang.Object

org.tio.utils.qr.AbstractQRCode

org.tio.utils.qr.QRCode

public class QRCode
extends AbstractQRCode

字段概要

字段

限定符和类型	字段和说明
static com.google.zxing.client.j2se.MatrixToImageConfig	DEFAULT_CONFIG
protected com.google.zxing.client.j2se.MatrixToImageConfig	matrixToImageConfig
protected String	text

从类继承的字段 org.tio.utils.qr.AbstractQRCode

height, hints, imageType, qrWriter, width

构造器概要

构造器

限定符	构造器和说明
protected	QRCode(String text)

方法概要

限定符和类型	方法和说明
File	file() returns a File representation of the QR code.
File	file(String name) returns a File representation of the QR code.
static QRCode	from(Schema schema) Creates a a QR Code from the given Schema.
static QRCode	from(String text) Create a QR code from the given text.
QRCode	to(ImageType imageType) Overrides the imageType from its default ImageType.PNG
QRCode	withCharset(String charset) Overrides the default charset by supplying a EncodeHintType.CHARACTER_SET hint to QRCodeWriter.encode(java.lang.String, com.google.zxing.BarcodeFormat, int, int)
QRCode	withColor(int onColor, int offColor)
QRCode	withErrorCorrection(com.google.zxing.qrcode.decoder.ErrorCorrectionLevel level) Overrides the default error correction by supplying a EncodeHintType.ERROR_CORRECTION hint to QRCodeWriter.encode(java.lang.String, com.google.zxing.BarcodeFormat, int, int)
QRCode	withHint(com.google.zxing.EncodeHintType hintType, Object value) Sets hint to QRCodeWriter.encode(java.lang.String, com.google.zxing.BarcodeFormat, int, int)
QRCode	withSize(int width, int height) Overrides the size of the qr from its default 125x125
protected void	writeToStream(OutputStream stream)

从类继承的方法 org.tio.utils.qr.AbstractQRCode

createMatrix, createTempFile, createTempFile, getQrWriter, setQrWriter, stream, writeTo

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_CONFIG

public static final com.google.zxing.client.j2se.MatrixToImageConfig DEFAULT_CONFIG

text

protected final String text

matrixToImageConfig

protected com.google.zxing.client.j2se.MatrixToImageConfig matrixToImageConfig

构造器详细资料

QRCode

protected QRCode(String text)

方法详细资料

from

public static QRCode from(String text)

Create a QR code from the given text.

There is a size limitation to how much you can put into a QR code. This has been tested to work with up to a length of 2950 characters.

The QRCode will have the following defaults:
{size: 100x100}
{imageType:PNG}

Both size and imageType can be overridden:
Image type override is done by calling to(ImageType) e.g. QRCode.from("hello world").to(JPG)
Size override is done by calling withSize(int, int) e.g. QRCode.from("hello world").to(JPG).withSize(125, 125)

参数:

text - the text to encode to a new QRCode, this may fail if the text is too large.

返回:

the QRCode object

from

public static QRCode from(Schema schema)

Creates a a QR Code from the given Schema.

The QRCode will have the following defaults:
{size: 100x100}
{imageType:PNG}

参数:

schema - the schema to encode as QRCode

返回:

the QRCode object

to

public QRCode to(ImageType imageType)

Overrides the imageType from its default ImageType.PNG

参数:

imageType - the ImageType you would like the resulting QR to be

返回:

the current QRCode object

withSize

public QRCode withSize(int width,
                       int height)

Overrides the size of the qr from its default 125x125

参数:

width - the width in pixels

height - the height in pixels

返回:

the current QRCode object

withCharset

public QRCode withCharset(String charset)

Overrides the default charset by supplying a EncodeHintType.CHARACTER_SET hint to QRCodeWriter.encode(java.lang.String, com.google.zxing.BarcodeFormat, int, int)

参数:

charset - the charset as string, e.g. UTF-8

返回:

the current QRCode object

withErrorCorrection

public QRCode withErrorCorrection(com.google.zxing.qrcode.decoder.ErrorCorrectionLevel level)

Overrides the default error correction by supplying a EncodeHintType.ERROR_CORRECTION hint to QRCodeWriter.encode(java.lang.String, com.google.zxing.BarcodeFormat, int, int)

参数:

level - the error correction level to use by QRCodeWriter.encode(java.lang.String, com.google.zxing.BarcodeFormat, int, int)

返回:

the current QRCode object

withHint

public QRCode withHint(com.google.zxing.EncodeHintType hintType,
                       Object value)

Sets hint to QRCodeWriter.encode(java.lang.String, com.google.zxing.BarcodeFormat, int, int)

参数:

hintType - the hintType to set

value - the concrete value to set

返回:

the current QRCode object

file

public File file()

从类复制的说明: AbstractQRCode

returns a File representation of the QR code. The file is set to be deleted on exit (i.e. File.deleteOnExit()). If you want the file to live beyond the life of the jvm process, you should make a copy.

指定者:

file 在类中 AbstractQRCode

返回:

qrcode as file

file

public File file(String name)

从类复制的说明: AbstractQRCode

returns a File representation of the QR code. The file has the given name. The file is set to be deleted on exit (i.e. File.deleteOnExit()). If you want the file to live beyond the life of the jvm process, you should make a copy.

指定者:

file 在类中 AbstractQRCode

参数:

name - name of the created file

返回:

qrcode as file

另请参阅:

AbstractQRCode.file()

writeToStream

protected void writeToStream(OutputStream stream)
                      throws IOException,
                             com.google.zxing.WriterException

指定者:

writeToStream 在类中 AbstractQRCode

抛出:

IOException

com.google.zxing.WriterException

withColor

public QRCode withColor(int onColor,
                        int offColor)