RasterizedReceiptPrinting

Printing Unicode with Command mode to Receipt printers are not reliable. The best solution so far is to printing to a UIImage and then send the whole image over to printer. With this approach, developer can control totally the Unicode printing work and it''s easier to manage the layout. However, Mono-Font must be used to make alignment more precise.

Usage

Firstly, we must create a NSAttributedString.

• Implement Swift:

  let printTemplate = NSMutableAttributedString(string: "")

Then, we can append new attributed string for this template like this.

• Implement Swift:

  printTemplate.append("Hello World!!!\n")
  printTemplate.appendCenter("This is a center body.\n")
  printTemplate.appendBold("End World!!!\n")

Finally, create image from custom string with page width setting.

• Implement Swift:

  let image = printTemplate.rasterize(width: 576)

Congratulations! You're done. 🎉

Installation

RasterizedReceiptPrinting is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'RasterizedReceiptPrinting'

Before using module

Swift

Add the following line in your Swift file:

import RasterizedReceiptPrinting

Example

To run the example project, clone the repo, and run pod install from the Example directory first.

Requirements

• Swift 4.0
• iOS 9.0 or later

Author

• Chinh Nguyen, [email protected]
• Tien Pham, [email protected]

License

RasterizedReceiptPrinting is available under the MIT license. See the LICENSE file for more info.