使用CursorAdapter

Question

这是我的游标适配器类。我将此适配器设置为listview。我也做了notifydatasethanged()。但是，我仍然没有得到任何结果，即当添加项时，列表视图仍然显示为空白。

public class tasksCursorAdapter extends CursorAdapter {
public tasksCursorAdapter(Context context, Cursor c, boolean autoRequery) {
    super(context, c, autoRequery);
}

@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {

    LayoutInflater inflater = LayoutInflater.from(parent.getContext());
    View retView = inflater.inflate(R.layout.single_row, parent, false);
    return retView;
}

@Override
public void bindView(View view, Context context, Cursor cursor) {

    TextView tvTask, tvDate, tvTime;
    tvTask = (TextView) view.findViewById(R.id.task_added);
    tvDate = (TextView) view.findViewById(R.id.date_added);
    tvTime = (TextView) view.findViewById(R.id.time_added);
    tvTask.setText(cursor.getString(1));
    tvDate.setText(cursor.getString(2));
    tvTime.setText(cursor.getString(3));

}
}

Answer 1

除非添加getCount方法，否则将看不到添加到列表视图中的视图