contact information

[Blackberrylerner]

Hi All

I am trying to get BlackBerry contact information through code like Nmae,number etc.Please help me

How can i get contact information?

[imorio]

What have you tried so far?

[Blackberrylerner]

What have you tried so far?

Thanks for reply.
Honestly i just find api

javax.microedition.pim.*

I try to find article.If you have any article link or Idea then please give me

[imorio]

All java classes from java at:
All Classes (Java 2 Platform SE v1.4.2)

[Blackberrylerner]

All java classes from java at:
All Classes (Java 2 Platform SE v1.4.2)

Thank for reply
I know that where is java classes.My problem is how to start to get contact information?
Can you give me some example link.
Thanks in advance

[Eranga]

Did you read the following?

BlackBerry JDE 4.5.0 API Reference: Interface Contact

[Blackberrylerner]

Thanks for response ..

When i try to run PhotoExample of BlackBerry JDE 4.5.0 API Reference: Interface Contact.Then i am getting Uncaught exception: Java.long.NullPointrtException.

[Eranga]

Okay, those things are general exceptions comes up with in developments. And you are working on the IDE as well. So why don't you try to debug the code my friend. Just add some break-points and try it out. And also look at the exception stack trace, you can find a lot from there.

Post the message here to see.

[Blackberrylerner]

I debug code i found where is exception generate.

 import java.io.IOException;
 import javax.microedition.pim.Contact;
 import javax.microedition.pim.ContactList;
 import javax.microedition.pim.PIM;
 import javax.microedition.pim.PIMException;
 import javax.microedition.pim.PIMItem;
 import net.rim.device.api.io.Base64InputStream;
 import net.rim.device.api.io.Base64OutputStream;
 
 public class PhotoExample
 {
 
     private Contact _contact;
 
     public PhotoExample() throws PIMException
     {
         ContactList contactList = (ContactList) PIM.getInstance().openPIMList(
                 PIM.CONTACT_LIST, PIM.READ_WRITE );
         _contact = contactList.createContact();
     }
 
     public void setPhoto() throws IOException
     {
         byte[] photo = getSamplePhoto();
         byte[] photoEncoded = Base64OutputStream.encode( photo, 0,
                 photo.length, false, false );
         if( _contact.countValues( Contact.TEL ) > 0 ) {
             _contact.setBinary( Contact.TEL, 0, PIMItem.ATTR_NONE,
                     photoEncoded, 0, photo.length );
         } else {
             _contact.addBinary( Contact.TEL, PIMItem.ATTR_NONE, photoEncoded,
                     0, photo.length );
         }
     }
 
     public byte[] getPhoto() throws IOException
     {
         if( _contact.countValues( Contact.TEL ) > 0 ) {
             byte[] photoEncoded = _contact.getBinary( Contact.TEL, 0 );
             return Base64InputStream.decode( photoEncoded, 0,
                     photoEncoded.length );
         } else {
             return null;
         }
     }
 
     private static byte[] getSamplePhoto()
     {
         // return the raw bytes of the photo to use
         return null;
     }
 
     public static void main( String[] args ) throws Throwable
     {
         PhotoExample example = new PhotoExample();
         example.setPhoto();
         example.getPhoto();
     }
 
 }

exception Generate here

  private static byte[] getSamplePhoto()
     {
         // return the raw bytes of the photo to use
         return null;
     }

getSamplePhoto retun Null.
What i do here i have no idea.Can you tell me what i do here?
Thanks in advance..

[Eranga]

Yes, you've return a null from that method. And it cause for the exception.

[Eranga]

You've to read an image and pass the relevant byte stream, which is not implement yet.

[Blackberrylerner]

You've to read an image and pass the relevant byte stream, which is not implement yet.

Yes you are right i havn't read image or contact number.
So can you tell me how can i read?

[Eranga]

What you want to do read, a contact or an image. First of all decide that. Because those things should be done in two ways.

[Blackberrylerner]

What you want to do read, a contact or an image. First of all decide that. Because those things should be done in two ways.

contact number nothing more

[Eranga]

Okay then you want to access the contacts with an image, and the image need to be transfer as a byte stream. Not as a string or else. But the contact number is possible.

Check the code body of getPhoto(), can you understand what it is really doing?

[Blackberrylerner]

Check the code body of getPhoto(), can you understand what it is really doing?

No really i don't understand?
Please help me

[Blackberrylerner]

Please help me

[Eranga]

So, debug that method. And check really what happen there. If you are stuck on anything let me know.

[Blackberrylerner]

So, debug that method. And check really what happen there. If you are stuck on anything let me know.

Ok Thanks for reply.I debug this method

public byte[] getPhoto() throws IOException
     {
         if( _contact.countValues( Contact.TEL ) > 0 ) {
             byte[] photoEncoded = _contact.getBinary( Contact.TEL, 0 );
             return Base64InputStream.decode( photoEncoded, 0,
                     photoEncoded.length );
         } else {
             return null;
         }
     }

It's always return null.
Please help me

[Eranga]

Think about that lol. Why it returns null, because it fails the following condition.

_contact.countValues( Contact.TEL ) > 0

What it really does?