Question

I created a ArrayList with an Custom Adapter to show a delete-Button next to each item.
How can I delete one item in the List by clicking it’s corresponding delete-Button?

I read that I have to add the following Code in my getView() method:

btnDel.setTag(position);

Next I should convert the position into an int since setTag returns an Object. How do I manage this?

And then, I should create a onClickListener() Function in my getView() like this:

btnDel.setOnClick....{
arrayList.remove(index);
adapter.notifyDataSetChanged();}

How do I get the number of the current selected remove-Button or what should I put in the remove()?

I’m new to android, so please give code-examples or easy-to-understand hints 🙂

Thanks.

Answer 1

You need to create something similar to this (at least this is the way which I was going to create this functionallity) :

public View getView(int position, View convertView, ViewGroup parent) {
    View vi = convertView;
    ViewHolder holder;
    if (convertView == null) {
        vi = inflater.inflate(R.layout.item, null);
        holder = new ViewHolder();
        holder.name = (Button) vi.findViewById(R.id.delete);
        vi.setTag(holder);
    } else
        holder = (ViewHolder) vi.getTag();
        holder.name.setText("Delete");

        holder.name.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {

            arrayList.remove(position);

            adapter.notifyDataSetChanged();

        }
    });

    return vi;
}

Something similar to this should work for you.
Hope it helps! : )