The "Send 2 Printer" application hooks into existing applications to
enable printing but you can also send the following data formats to
Send 2 Printer for printing from your own applications:
- HTML content
- Text
- Image
- Canvas draw commands (via serialized Picture)
- Canvas draw commands rendered to a Bitmap

For example:


The following post contains sample code to print the above formats and
include a sample "Test Print" eclipse project:

http://hit-mob.com/forums/viewtopic.php?f=13&t=66

More information about the "Send 2 Printer" application:

http://hit-mob.com/forums/viewtopic.php?f=13&t=58

Thanks for sharing.


Canvas Print

i need an help in receipt printer,...

hi i am using this code to acces a recieved sms write to a file and then send that file to a buetooth printer to print...i want use the built in bluetooth app using the action_send intent ..is my code correct?? cos its givin force close...and will bluetooth printer print any file i jus send to it??pls help,,,

Code: Select all

package com.example.sms;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.telephony.SmsMessage;
//import android.util.Log;
import android.widget.Toast;
//import android.widget.Toast;
public class sms extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        SMSReceiver ss = new SMSReceiver();
        final String SMS_RECEIVED="android.provider.Telephony.SMS_RECEIVED";
        IntentFilter filter = new IntentFilter(SMS_RECEIVED);
        registerReceiver(ss, filter);
    }
/**
* The class is called when SMS is received.
*/
public class SMSReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
   Bundle bundle = intent.getExtras();
   Object messages[] = (Object[]) bundle.get("pdus");
   SmsMessage smsMessage[] = new SmsMessage[messages.length];
   for (int n = 0; n<messages.length; n++) {
   smsMessage[n] = SmsMessage.createFromPdu((byte[]) messages[n]);
   }
   try{ //       
       File root = new File(Environment.getExternalStorageDirectory(), "Notes");
           if (!root.exists()) {
               root.mkdirs();
           }
           //String sFileName = null;
         File gpxfile = new File(root,"sample.txt");
           FileWriter writer = new FileWriter(gpxfile);
           writer.append(smsMessage[0].getMessageBody());
           writer.flush();
           writer.close();
           //Toast.makeText(this, "Saved", Toast.LENGTH_SHORT).show();
            Toast t = Toast.makeText(context,gpxfile.getAbsolutePath(),Toast.LENGTH_LONG);
            t.show();
            Intent in = new Intent(); 
            in.setAction(Intent.ACTION_SEND); 
            in.setType("*/*"); 

            in.putExtra(Intent.EXTRA_STREAM,Uri.fromFile(gpxfile)); 
            startActivity(intent); 
       
         
       

} catch (IOException ioe) {
        ioe.printStackTrace();
}


}


}
}


N4Spd wrote:The "Send 2 Printer" application hooks into existing applications to
enable printing but you can also send the following data formats to
Send 2 Printer for printing from your own applications:
- HTML content
- Text
- Image
- Canvas draw commands (via serialized Picture)
- Canvas draw commands rendered to a Bitmap

For example:

Syntax: [ Download ] [ Hide ]

Syntax: [ Download ] [ Show ]

Using java Syntax Highlighting

1.     void printCanvasExample()
2.     {
3.        // create canvas to render on
4.        Picture picture = new Picture();
5.        Canvas c = picture.beginRecording( 240, 240 );
6.        
7.        // fill background with WHITE
8.        c.drawRGB( 0xFF, 0xFF, 0xFF );
9.        
10.        // draw text
11.        Paint p = new Paint();
12.        Typeface font = Typeface.create(Typeface.SANS_SERIF, Typeface.BOLD);
13.         p.setTextSize( 18 );
14.         p.setTypeface( font );
15.         p.setAntiAlias(true);        
16.        Rect textBounds = new Rect();
17.        p.getTextBounds( HELLO_WORLD, 0, HELLO_WORLD.length(), textBounds );
18.        int x = (c.getWidth() - (textBounds.right-textBounds.left)) / 2;
19.        int y = (c.getHeight() - (textBounds.bottom-textBounds.top)) / 2;
20.        c.drawText( HELLO_WORLD, x, y, p );
21.        
22.        // draw icon
23.        Bitmap icon = BitmapFactory.decodeResource( getResources(), R.drawable.icon );
24.        c.drawBitmap( icon, 0, 0, null );
25.  
26.        // stop drawing
27.        picture.endRecording();
28.        
29.        // queue canvas for printing
30.        File f = PrintUtils.saveCanvasPictureToTempFile( picture );
31.        if( f != null )
32.        {
33.           PrintUtils.queuePictureStreamForPrinting( this, f );
34.        }
35.     }
36.  

Parsed in 0.035 seconds, using GeSHi 1.0.8.4

The following post contains sample code to print the above formats and
include a sample "Test Print" eclipse project:

http://hit-mob.com/forums/viewtopic.php?f=13&t=66

More information about the "Send 2 Printer" application:

http://hit-mob.com/forums/viewtopic.php?f=13&t=58

This is the example of - Canvas draw commands rendered to a Bitmap
void printCanvasAsBitmapExample()
{
// create canvas to render on
Bitmap b = Bitmap.createBitmap( 240, 240, Bitmap.Config.RGB_565 );
Canvas c = new Canvas( b );

// fill background with WHITE
c.drawRGB( 0xFF, 0xFF, 0xFF );

// draw text
Paint p = new Paint();
Typeface font = Typeface.create(Typeface.SANS_SERIF, Typeface.BOLD);
p.setTextSize( 18 );
p.setTypeface( font );
p.setAntiAlias(true);
Rect textBounds = new Rect();
p.getTextBounds( HELLO_WORLD, 0, HELLO_WORLD.length(), textBounds );
int x = (c.getWidth() - (textBounds.right-textBounds.left)) / 2;
int y = (c.getHeight() - (textBounds.bottom-textBounds.top)) / 2;
c.drawText( HELLO_WORLD, x, y, p );

// draw icon
Bitmap icon = BitmapFactory.decodeResource( getResources(), R.drawable.icon );
c.drawBitmap( icon, 0, 0, null );

// queue bitmap for printing
try
{
File f = PrintUtils.saveBitmapToTempFile( b, Bitmap.CompressFormat.PNG );
if( f != null )
{
PrintUtils.queueBitmapForPrinting( this, f, Bitmap.CompressFormat.PNG );
}
}
catch( Exception e )
{
Log.e( TAG, "failed to save/queue bitmap", e );
}
}