Edit item by position in listview

Question

Hi I'm a new android developer. I try to change some element in my item once on click, this is my code

ListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                ImageView img = findViewById(R.id.imageView2);
                img.setImageResource(R.drawable.validate);
                TextView txtNumTicket, txtCaisse;
                txtNumTicket = findViewById(R.id.ref);
                txtCaisse = findViewById(R.id.textView);
                txtNumTicket.setTextColor(ContextCompat.getColor(Commande.this, R.color.bon));
                txtCaisse.setTextColor(ContextCompat.getColor(Commande.this, R.color.bon));
                Toast.makeText(getApplicationContext(), "You have selected item no."
                        + (i + 1) + "", Toast.LENGTH_SHORT).show();

            }
        });

I wanna return to the initial state (change image to R.id.novalidate and color textview) when position equal 6, How can I do it ?

Answer 1

UPDATED after comment:

if (yourListView.getAdapter().getCount()  == 6) {
    img.setImageResource(R.drawable.novalidate);
    txtNumTicket.setTextColor(ContextCompat.getColor(Commande.this, R.color.your_new_colour));
    txtCaisse.setTextColor(ContextCompat.getColor(Commande.this, R.color.your_new_colour));
}

2ndUPDATE: Based on this answer , here's how you can get a view in a specific position of your list

public View getViewByPosition(int pos, ListView listView) {
    final int firstListItemPosition = listView.getFirstVisiblePosition();
    final int lastListItemPosition = firstListItemPosition + listView.getChildCount() - 1;

    if (pos < firstListItemPosition || pos > lastListItemPosition ) {
        return listView.getAdapter().getView(pos, null, listView);
    } else {
        final int childIndex = pos - firstListItemPosition;
        return listView.getChildAt(childIndex);
    }
}

So you could get the view you wanted by calling:

View view = getViewByPosition (number_of_the_view_you_want_to_change, name_of_your_listview);

Then bind the textviews/imageviews of that item (view.findViewById(...)) and set the colours and text as described above