Cannot read phone contacts in android

Question

I use this code for reading ohone contact.

     Cursor cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI,null, null, null, null); 
         if(cursor.moveToFirst()&&cursor.getCount()>0&&cursor!=null){

               // String contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone._ID)); 
                String name      = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
                String phone     =  cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

}     

But these "ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME" ,"ContactsContract.CommonDataKinds.Phone.NUMBER" return -1 that causes exception.

How should I sove this prblem?

Answer 1

Try this code

Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,null,null, null);
while (phones.moveToNext())
{
  String name=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
  String phone = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

}
phones.close();