BaseAdapter的问题

Question

嗨，我已经扩展了BaseAdapter，我的列表大小是20，但它只显示了7条记录，在第7条记录之后，它又从0开始显示。

公共类ContactsAdapter扩展了BaseAdapter {私有列表元素；私有上下文c；

public ContactsAdapter(Context c, List<ContactBean> Tweets) {
    this.elements = Tweets;
    this.c = c; }

public int getCount() {
    return elements.size(); }

public Object getItem(int position) {
    System.out.println(":: ::"+position);
    System.out.println("Printing Postions ::"+elements.get(position));
    return elements.get(position);  }

public long getItemId(int id) {
    return id;  }

public void Remove(int id) {        notifyDataSetChanged(); }

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

    LinearLayout rowLayout;
    ContactBean t = elements.get(position);

    if (convertView == null) {
        rowLayout = (LinearLayout) LayoutInflater.from(c).inflate(
                R.layout.list_view, parent, false);
        TextView tv_name = (TextView) rowLayout.findViewById(R.id.txt_contacts_name);
        tv_name.setText(t.getFirstName());
    } else {
        rowLayout = (LinearLayout) convertView;
    }
    return rowLayout;
}

}

请帮帮忙

Answer 1

视图被重用，因此您应该将tv_name.setText(t.getFirstName());放在if-else块之后：

if (convertView == null) {
    rowLayout = (LinearLayout) LayoutInflater.from(c).inflate(R.layout.list_view, parent, false);
} else {
    rowLayout = (LinearLayout) convertView;
}

TextView tv_name = (TextView) rowLayout.findViewById(R.id.txt_contacts_name);
tv_name.setText(t.getFirstName());