drawQRCode abstract method

dynamic drawQRCode(
  1. String context,
  2. PrinterOffset offset,
  3. PrinterSize size,
  4. ECCLevelEnum ecc,
)

打印二维码

context 内容

offset 偏移位置

size 大小

ecc 纠错等级

Implementation

drawQRCode(
    String context, PrinterOffset offset, PrinterSize size, ECCLevelEnum ecc);