Package com.google.zxing.qrcode

Class QRCodeWriter

  • All Implemented Interfaces:
    Writer
    public final class QRCodeWriter
extends java.lang.Object
implements Writer
    This object renders a QR Code as a BitMatrix 2D array of greyscale values.

    • Constructor Summary

      Constructors 
      Constructor Description
      QRCodeWriter()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      BitMatrix encode​(java.lang.String contents, BarcodeFormat format, int width, int height)
      Encode a barcode using the default settings.
      BitMatrix encode​(java.lang.String contents, BarcodeFormat format, int width, int height, java.util.Map<EncodeHintType,​?> hints)  

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • QRCodeWriter

        public QRCodeWriter()

    • Method Detail

      • encode

        public BitMatrix encode​(java.lang.String contents,
                        BarcodeFormat format,
                        int width,
                        int height)
                 throws WriterException
        Description copied from interface: Writer
        Encode a barcode using the default settings.
        Specified by:
        encode in interface Writer
        Parameters:
        contents - The contents to encode in the barcode
        format - The barcode format to generate
        width - The preferred width in pixels
        height - The preferred height in pixels
        Returns:
        BitMatrix representing encoded barcode image
        Throws:
        WriterException - if contents cannot be encoded legally in a format

      • encode

        public BitMatrix encode​(java.lang.String contents,
                        BarcodeFormat format,
                        int width,
                        int height,
                        java.util.Map<EncodeHintType,​?> hints)
                 throws WriterException
        Specified by:
        encode in interface Writer
        Parameters:
        contents - The contents to encode in the barcode
        format - The barcode format to generate
        width - The preferred width in pixels
        height - The preferred height in pixels
        hints - Additional parameters to supply to the encoder
        Returns:
        BitMatrix representing encoded barcode image
        Throws:
        WriterException - if contents cannot be encoded legally in a format