android - 在可扩展列表中隐藏组 View

Question

我有一个使用两个游标的 expandableList:1 个用于组，另一个用于与组相关的子项。用户可以在此可扩展列表上使用过滤器 (alphaindexer)。我想在没有 child 时完全删除组 View (不仅是图标 :))。就像我删除了空组的行。

我尝试在 bindgroupview 方法中将可见性设置为消失。我尝试为组 View 设置布局高度....结果是一样的，空间仍然保留并显示。

这可能吗？我该如何实现此功能？

下面的一些代码:

// mMapSeqArticle is TreeMap<Object, ArrayList<Object>)
mSequenceAdapter = new SequenceCommandeAdapter(getActivity(), mMapSeqArticle);

public class SequenceCommandeAdapter extends BaseExpandableListAdapter {
        Object[] mGroupSeq = null;
        Map<Sequence, ArrayList<TicketArticle>> mContent;

        public SequenceCommandeAdapter(Context c,
                Map<Sequence, ArrayList<TicketArticle>> map) {
            mContent = map;
            mGroupSeq = mContent.keySet().toArray();
        }

        @Override
        public Object getChild(int groupPosition, int childPosition) {
            Sequence s = (Sequence) mGroupSeq[groupPosition];
            return ((ArrayList<TicketArticle>) (mContent.get(s)))
                    .get(childPosition);
        }

        @Override
        public long getChildId(int groupPosition, int childPosition) {
            Sequence s = (Sequence) mGroupSeq[groupPosition];
            return ((ArrayList<TicketArticle>) (mContent.get(s)))
                    .get(childPosition).mId;
        }

        @Override
        public View getChildView(int groupPosition, int childPosition,
                boolean isLastChild, View convertView, ViewGroup parent) {
            // retrouve la valeur de la sequence
            TicketArticle ta = (TicketArticle) getChild(groupPosition,
                    childPosition);
            if (convertView == null) {
                convertView = LayoutInflater.from(getActivity()).inflate(
                        R.layout.adapter_row_article_details_table, null);
            }



            convertView.setTag(groupPosition + ":" + childPosition);
            return convertView;
        }

        @Override
        public int getChildrenCount(int groupPosition) {
            Sequence s = (Sequence) mGroupSeq[groupPosition];
            return ((ArrayList<TicketArticle>) (mContent.get(s))).size();
        }

        @Override
        public Object getGroup(int groupPosition) {
            return (Sequence) mGroupSeq[groupPosition];// mContent.get(groupPosition);
        }

        @Override
        public int getGroupCount() {
            return mContent.size();
        }

        @Override
        public long getGroupId(int groupPosition) {
            return ((Sequence) mGroupSeq[groupPosition]).key;
        }

        @Override
        public View getGroupView(int groupPosition, boolean isExpanded,
                View convertView, ViewGroup parent) {
            if (convertView == null) {
                convertView = LayoutInflater.from(getActivity()).inflate(
                        R.layout.adapter_header_sequence_details_table, null);
            }


            convertView.setTag(null);
            return convertView;
        }

        @Override
        public boolean hasStableIds() {
            // TODO Auto-generated method stub
            return false;
        }

        @Override
        public boolean isChildSelectable(int groupPosition, int childPosition) {
            // TODO Auto-generated method stub
            return true;
        }
    }

Answer 1

我在您的代码中没有看到 bindGroupView 方法，但根据您的描述，您似乎走在了正确的轨道上。我必须将所有 subview (包括布局)的可见性设置为 GONE，以便组行从可扩展 ListView 中完全消失。否则，将保留空行。

如果你发布 R.layout.adapter_header_sequence_details_table 的内容，我会更好地了解你需要做的其他事情。