umjesto
Uri allContacts=Uri.parse("content://contacts/people");
mozemo pisati
Uri allContacts=ContactsContract.Contacts.CONTENT_URI;

umjesto
Uri allContacts=Uri.parse("content://contacts/people/1");
mozemo pisati
Uri allContacts=ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI,1);