Hi there
 
I'm hoping someone can point me in the right direction, currently Im able to send text to the printer without any issues but i would like to print an png asset as well but all i get is a string output. i am following this stackoverflow post - http://stackoverflow.com/questions/26100430/print-image-via-bluetooth-p… as i cant seem to find any offical documentation on how to do this correctly.
 
here is my test code:
 
package com.example.gareth.myzebraprinter;
 
import android.content.res.AssetManager;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
 
import com.zebra.sdk.comm.BluetoothConnection;
import com.zebra.sdk.comm.Connection;
import com.zebra.sdk.comm.ConnectionException;
import com.zebra.sdk.graphics.ZebraImageFactory;
import com.zebra.sdk.graphics.ZebraImageI;
import com.zebra.sdk.printer.PrinterLanguage;
import com.zebra.sdk.printer.ZebraPrinter;
import com.zebra.sdk.printer.ZebraPrinterFactory;
import com.zebra.sdk.printer.ZebraPrinterLanguageUnknownException;
import com.zebra.sdk.util.internal.Base64;
 
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
 
public class MainActivity extends AppCompatActivity {
 
   private ZebraPrinter zebraPrinter;
   private Connection connection;
 
   @Override   protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
 
  connect();
  printTest();
  }
 
   private void printTest(){
 
   if(zebraPrinter != null){
 
   try {
  InputStream inputStream = getAssets().open("ic_launcher.png");
  ZebraImageI zebraImageI = ZebraImageFactory.getImage(BitmapFactory.decodeStream(inputStream));
   zebraPrinter.printImage(zebraImageI,250,0,0,-1,false);
  } catch (IOException e) {
  e.printStackTrace();
  } catch (ConnectionException e) {
  e.printStackTrace();
  }
 
// byte[] rcpt = "------------\n\r test test test".getBytes();// try {// connection.write(rcpt);// } catch (ConnectionException e) {// Log.e("printTest",e.getMessage());// }   }
  }
 
   private void connect(){
 
 
   connection = new BluetoothConnection("AC3FA41EF22E");
 
   try   {
   connection.open();
  }
   catch (ConnectionException ex)
  {
  Log.e("connect","ConnectionException " + ex.getMessage());
  mSleeper.sleep(1000);
  closeConnection();
  }
   catch(Exception ex)
  {
  Log.e("connect","Exception "+ex.getMessage());
  }
 
   try   {
   zebraPrinter = ZebraPrinterFactory.getInstance(connection);
  PrinterLanguage pl = zebraPrinter.getPrinterControlLanguage();
  Log.i("PrinterPanguage",pl.toString());
  }
   catch (ConnectionException ex)
  {
  Log.e("connect","ConnectionException " + ex.getMessage());
   zebraPrinter = null;
  mSleeper.sleep(1000);
  closeConnection();
  } catch(Exception ex)
  {
  Log.e("connect","Exception " + ex.getMessage());
   zebraPrinter = null;
  mSleeper.sleep(1000);
  closeConnection();
  }
  }
 
   private void closeConnection(){
 
   if(connection != null){
   try   {
   connection.close();
  }
   catch (ConnectionException exx)
  {
  Log.e("closeConnection", exx.getMessage());
  }
  }
  }
}