unable to get contacts details in android

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Hi ,
Im trying to get the contact details but im getting error
couldnt read row 0 col -1 make sure cursor is initialized correclty.

following is my code :

<pre lang="java"><pre>try{
			
			final String[] projection = new String[] {
					RawContacts.CONTACT_ID,	// the contact id column
					//RawContacts.DELETED		// column if this contact is deleted
					};
			
			
			
		
			 Cursor rawContacts = getContentResolver().query(RawContacts.CONTENT_URI,projection , null,	null , null);
			List<HashMap<String, String>> map = new ArrayList<HashMap<String,String>>();
			 List<String> a = new ArrayList<String>();
			 //rawContacts.moveToPosition(2);
			if(rawContacts.moveToNext()) {
				final String name = rawContacts.getString(rawContacts.getColumnIndex(Contacts.DISPLAY_NAME));
					final String nmbr = rawContacts.getString(rawContacts.getColumnIndex(Contacts.HAS_PHONE_NUMBER));
					con = new HashMap<String, String>();
					con.put(NAME, nmbr);
					map.add(con);
					a.add(name);
				}
			rawContacts.close();
			ListView lst = (ListView) findViewById(R.id.lstContacts);
			SimpleAdapter ad = new SimpleAdapter(this,map,R.layout.activity_contacts, null,null);
			
			
			lst.setAdapter(ad);		
		}
		catch(Exception ex)
		{
			Toast.makeText(this, ex.getMessage(), Toast.LENGTH_SHORT).show();
		}

Posted 7-Apr-13 23:34pm

shanalikhan

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Prasad Khandekar · Answer 1 · 2013-04-08T05:06:00

Hello,

According to documentation youi can retrieve all contacts using following code.

Java

Cursor c = getContentResolver().query(RawContacts.CONTENT_URI, 
                new String[]{RawContacts._ID}, 
                RawContacts.CONTACT_ID + "=?", 
                new String[]{String.valueOf(contactId)}, null);

And the best way to read a raw contact along with all the data associated with it is by using the ContactsContract.RawContacts.Entity directory. More info[^].

For your problem change projection declaration as

Java

final String[] projection = new String[] {RawContacts.CONTACT_ID};

Regards,