An example that use Zebra Link-OS SDK's PrintStoredFormat

MainActivity.cs

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Android.App;
using Android.Net;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using AndroidX.AppCompat.App;
using Zebra.Sdk.Comm;
using Zebra.Sdk.Printer;

namespace BluetoothPrinter
{
    [Activity(Label = "@string/app_name", Theme = "@style/AppTheme", MainLauncher = true)]
    public class MainActivity : AppCompatActivity
    {
        Button buttonPrint;

        protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);
            Xamarin.Essentials.Platform.Init(this, savedInstanceState);
            // Set our view from the "main" layout resource
            SetContentView(Resource.Layout.activity_main);

            buttonPrint = FindViewById<Button>(Resource.Id.buttonPrint);
           

            buttonPrint.Click += async (sender, e) =>
            {
                await Task.Run(async () => {

                    string btAddress = "48:A4:93:89:63:97";
                    Connection connection = new BluetoothConnection(btAddress);
                  
                    try
                    {
                        connection.Open();

                        ZebraPrinter printer = ZebraPrinterFactory.GetInstance(connection);

                        Dictionary<int, string> vars = new Dictionary<int, string>
                        {
                        };


                        printer.PrintStoredFormat("E:HELLO2.ZPL", vars, "utf-8");

                        await Task.Delay(5000);


                    }
                    catch (Exception e)
                    {
                        Console.WriteLine(e.ToString());
                    }
                    finally
                    {
                        connection.Close();
                    }

                });

            };
              
        }
        public override void OnRequestPermissionsResult(int requestCode, string[] permissions, [GeneratedEnum] Android.Content.PM.Permission[] grantResults)
        {
            Xamarin.Essentials.Platform.OnRequestPermissionsResult(requestCode, permissions, grantResults);

            base.OnRequestPermissionsResult(requestCode, permissions, grantResults);
        }
    }
}