how to print png image on imz220 (android)

G Gareth Price 2 years 11 months ago
140 2 0

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());
  }
  }
  }
}

Please register or login to post a reply

2 Replies

J Joe Wallace

I can't find many samples, source code is not complete or even not working in some cases, there are many broken links on the posts and there are pages with almost nothing of help for the developer. Please fix that.

Pd.: GitHub - Zebra/LinkOS-Android-Samples has only a user license agreement and zero android samples, it is too bad.

V Vedsatx Saddvv

Hi Gareth,
Sorry for the delayed response. We had some bug in our system and all the posts were hidden.

You can have a look at our ImagePrintDemo app for your reference on how to print graphics. Please find the below link and let me know if you have any questions. Hope it helps.

https://km.zebra.com/kb/index?page=content&id=SA172

Thank you,
Mounika Jasti.

CONTACT
Can’t find what you’re looking for?