ExpandableListView 未展开

Question

我使用下面的代码在MainActivity 中设置onGroupClickListener，我还将OnLongClickListener 设置为在名为MyExpandableListAdapter 的自定义适配器的getGroupView() 中查看。

然后当我运行程序 onGroupClickListener 从不触发时，我从 OnGroupClickListener() 返回 true 或 false。如果我从 getGroupView() 中删除 OnlongClickListener 程序正常运行，onGroupClickListener() 将触发！这里发生了什么以及如何解决？

如果不是，则意味着无法将longClickListener 设置为ExpandableListView 的组？！！！这是MainActivity 中OnGroupClickListener() 的代码

exListView.setOnGroupClickListener(new OnGroupClickListener(){

        @Override
        public boolean onGroupClick(ExpandableListView parent, View v,
                int groupPosition, long id) {                               
            gallery.setAdapter(new ImageAdapter(getBaseContext(),(Bitmap[]) exListAdapter.getChild(groupPosition, 7)));             
            lastClickedGroup=groupPosition;                 
            return false;               
        }

    }); 

这是MyExpandableListAdapter中长按的代码：

arg2.setOnLongClickListener(new OnLongClickListener(){

        @Override
        public boolean onLongClick(View view) {
            DetailDialog.getDialog(screen.getContext(),(String)getChild(arg0,5));
            return true;
        }

    });

Answer 1

试试这个可能对你有帮助

exListView.setOnGroupClickListener(new OnGroupClickListener(){

        @Override
        public boolean onGroupClick(ExpandableListView parent, View v,
                int groupPosition, long id) {                               
            gallery.setAdapter(new ImageAdapter(getBaseContext(),(Bitmap[]) exListAdapter.getChild(groupPosition, 7)));             
            lastClickedGroup=groupPosition;                 
            exListView.expandGroup(groupPosition);//UPDATE HERE
            return false;               
        }

    });