Question

I am using a listview with an arrayadapter.. and i wish to know how to change an object property directly with an adapter ? without having to remove it and readding it. It is possible ?

Currently i use ..

    btnModifierNom.setOnClickListener(new OnClickListener(){            
               @Override            
               public void onClick(View v) {
                    int itemPosition = lstPersonnes.getCheckedItemPosition();
                    selectedItem = lstPersonnes.getItemAtPosition(itemPosition).toString();

                    String personne = adapter.getItem(itemPosition);

                    adapter.remove(personne);
                    personne = txtNouveauNom.getText().toString();
                    adapter.insert(personne, itemPosition);

                    adapter.notifyDataSetChanged();             }
            });

But its not a very elegant way.. if possible i would love to avoid removing it and reinserting it.

Any ideas ?

Thanks!

Answer 1

Why can’t you just change the value like this:

int itemPosition = lstPersonnes.getCheckedItemPosition();
String personne = adapter.getItem(itemPosition);
personne = txtNouveauNom.getText().toString();
adapter.notifyDataSetChanged();

And if adapter.notifyDataSetChanged() didn’t work with this, then try listView1.setAdapter(adapter) to refresh the listview.

UPDATE:

Try this:

btnModifierNom.setOnClickListener(new OnClickListener()
{            
    @Override            
    public void onClick(View v)
    {
        int itemPosition = lstPersonnes.getCheckedItemPosition();            
        // Gets the textview of the item at the position in the listview
        ((TextView)lstPersonnes.getChildAt(itemPosition)).setText(txtNouveauNom.getText().toString());

        // Put this
        adapter.notifyDataSetChanged();
        // Or this to refresh listview
        lstPersonnes.setAdapter(adapter);
    }
});