Question

使用android studio我正在尝试创建自定义ListView。该应用不会崩溃但我没有尝试在items上展示ListView。当我在这里运行它是list但行中没有任何东西;我也可以滚动它，我可以毫无问题地点击行。这是ListView中的MainActivity：

CustomList adapter = new CustomList(this,myRssFeed.getList());
                adapter.addAll();
                setListAdapter(adapter);

我的CustomAdapter：

public class CustomList extends ArrayAdapter<RSSItem> {

private final Activity context;
private final List<RSSItem> web;

public CustomList(Activity context, List<RSSItem> web) {
    super(context, R.layout.list_item, web);
    this.context = context;
    this.web = web;
}

@Override
public View getView(int position, View view, ViewGroup parent) {
    LayoutInflater inflater = context.getLayoutInflater();
    View rowView = inflater.inflate(R.layout.list_item, null, true);

    TextView txtTitle = (TextView) rowView.findViewById(R.id.item);
    txtTitle.setText((CharSequence) getTitle());

    return rowView;
}

private RSSItem getTitle() {
    return null;
}

Answer 1

尝试更新如下

TextView txtTitle = (TextView) rowView.findViewById(R.id.item);
txtTitle.setText(web.get(pos).getTitle());

Answer 2

改变这个：

private RSSItem getTitle() {
    return null;
}

要：

private RSSItem getTitle(int position) {
    return web.get(position);
}

并改变这一点：

txtTitle.setText((CharSequence) getTitle());

要：

txtTitle.setText((CharSequence) getTitle(position));

创建自定义ListView

2 个答案: