android - How to fetch the E Mail ID of A contact -

i trying fetch e mail address of contact. found how contact email id? not use this.

i have written following code fetch email

             cursor c1;             c1 = getcontentresolver().query(contactscontract.contacts.content_uri, null, null, null, contactscontract.contacts.display_name);               if(c1==null)         return;                     if(c1.getcount() > 0)             {                     while(c1.movetonext())                     {                          string id = c1.getstring(c1.getcolumnindex(contacts._id));                                                     if(id==null)                             continue;                                                     cursor email_crsr = getcontentresolver().query(commondatakinds.email.content_uri, null, commondatakinds.phone.contact_id +" = ?", new string[]{id}, null);                         if(email_crsr!=null)                               email = phone_crsr.getstring(phone_crsr.getcolumnindex(commondatakinds.email.data));        }     } 

i following exception : 04-09 10:38:59.487: e/androidruntime(8150): caused by: android.database.cursorindexoutofboundsexception: index -1 requested, size of 4

this may helps

    public arraylist<string> getnameemaildetails(){         arraylist<string> names = new arraylist<string>();         contentresolver cr = getcontentresolver();         cursor cur = cr.query(contactscontract.contacts.content_uri,null, null, null, null);         if (cur.getcount() > 0) {             while (cur.movetonext()) {                 string id = cur.getstring(cur.getcolumnindex(contactscontract.contacts._id));                 cursor cur1 = cr.query(                          contactscontract.commondatakinds.email.content_uri, null,                         contactscontract.commondatakinds.email.contact_id + " = ?",                                  new string[]{id}, null);                  while (cur1.movetonext()) {                      //to contact names                     string name=cur1.getstring(cur1.getcolumnindex(contactscontract.commondatakinds.phone.display_name)); //                    log.e("name :", name);                     string email = cur1.getstring(cur1.getcolumnindex(contactscontract.commondatakinds.email.data)); //                    log.e("email", email);                     if(email!=null){                         names.add(email);                     }                 }                  cur1.close();             }         }         return names;     }