Flutter ZebraUtility

Zebra utility is a plugin for working easily with zebra printers in your flutter project.

Discovery bluetooth and wifi printers in android and bluetooth printers in iOS.
Connect and disconnect to printers
Set mediatype, darkness, calibrate command without writing any ZPL code for ZPL printers.
Rotate ZPL without changing your zpl.

Installation

Android

Add this code to android block in build.gradle (Module level).

android {
    packagingOptions {
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE.txt'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/DEPENDENCIES'
    }
}

iOS

Add Supported external accessory protocols in your info.plist and then add com.zebra.rawportto its. Add Privacy - Local Network Usage Description in your info.plist.

Example

Getting Started

for initial new object of printer use this.

     ZebraPrinter zebraPrinter = await Zebrautility.getPrinterInstance(
  onPrinterFound, onPrinterDiscoveryDone, onChangePrinterStatus,
  onPermissionDenied: onPermissionDenied);

You must pass 3 functions onPrinterFound, onPrinterDiscoveryDone and onChangePrinterStatus. onPrinterFound is called, when a new printer found. you can implement like this:

  Function onPrinterFound = (name, ipAddress) {
      print("PrinterFound :" + name + ipAddress);
    };

onPrinterDiscoveryDone is called, when discovery printers is done and finished. You can implement like this:

 Function onPrinterDiscoveryDone = () {
      print("Discovery Done");
    };

onChangePrinterStatus when the Status of printer changes, You can implement like this:

   Function onChangePrinterStatus = (status, color) {
      print("change printer status: " + status + color);
    };

onPermissionDenied is called, when android user deny location permission. You can implement like this:

  Function onPermissionDenied = () {
      print("Permission Deny.");
    };

Methods

For start Discovery bluetooth and wifi printres, use this method:

  zebraPrinter.discoveryPrinters();

For connecting to printer, pass ipAddreess for wifi printer or macAddress for bluetooth printer to connectToPrinter method.

 zebraPrinter.connectToPrinter("192.168.47.50");

You can set media type between Lable, Journal and BlackMark. You can choose media type by EnumMediaType.

  zebraPrinter.setMediaType(EnumMediaType.BlackMark);

You may callibrate printer after set media type. You can use this method.

zebraPrinter.calibratePrinter();

You can set darkness. the valid darkness value are -99,-75,-50,-25,0,25,50,75,100,125,150,175,200.

  zebraPrinter.setDarkness(25);

For print ZPL, you pass ZPL to print method.

  zebraPrinter.print("Your ZPL");

For rotate your ZPL without changing your ZPL, you can use this method. You can call this again for normal printing.

  zebraPrinter.rotate();

For disconnect from printer, use disconnect method. For battery saver, disconnect from printer when you not need printer.

  zebraPrinter.disconnect();