如何使用Custom Adapter类获取最后一个ListView项位置？

Question

嗨我在我的应用程序中是android的新手我使用Custom Adapter类创建了一个ListView。

在ListView页脚中，我添加了两个按钮，如下图所示，当我点击ADDNEW按钮时，我想找到ListView丢失的项目位置。

ListViewAdapter： -

public class ListViewAdapter extends ArrayAdapter<Friend> {

    ViewHolder holder;
    private List<Friend> myFriends;
    private Activity activity;

    public ListViewAdapter(Activity context, int resource, List<Friend> objects) {

        super(context, resource, objects);
        this.activity = context;
        this.myFriends = objects;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        LayoutInflater inflater = (LayoutInflater) activity.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);

        // If holder not exist then locate all view from UI file.
        if (convertView == null) {
            // inflate UI from XML file
            convertView = inflater.inflate(R.layout.item_listview, parent, false);
            // get all UI view
            holder = new ViewHolder(convertView);
            // set tag for holder
            convertView.setTag(holder);

        } else {
            // if holder created, get tag from view
            holder = (ViewHolder) convertView.getTag();
        }

        holder.goButton.setTag(position);

        holder.binNumberEditText.setText(getItem(position).getBinNumberEditText());
        holder.qtyEditText.setText(getItem(position).getQtyEditText());
        holder.goButton.setOnClickListener(onConfirmListener());

        return convertView;
    }

     public void adding(String result){

            int position = ListViewadapter.getPosition();

            if (position != null && !position.isEmpty() && !position.equals("null")){

                myFriends.add(new Friend("", ""));
                notifyDataSetChanged();

            }else{
                System.out.println("Yes there is null value");
            }
        }

Answer 1

public Friend getLastFriend(){
    return myFriend.get(myFriend.size() - 1);
}

告诉我你是否这样做。