bindChildView和bindGroupView相同的游标

Question

使用getChildrenCursor如何使bindChildView获得与bindGroupView相同的光标？

        @Override
        protected Cursor getChildrenCursor(Cursor groupCursor) {


            Cursor childCursor = groupCursor;//bd.ReadData("select * from images where _id="+2);


            return childCursor;
        }

这种方式返回所有组的Cursor，而不是特定于一个Group ...

Answer 1

通过让GroupId能够为每个孩子查询正确的行，如下所示

        @Override
        protected Cursor getChildrenCursor(Cursor groupCursor) {

            int groupPos = groupCursor.getPosition();
            int groupId = groupCursor.getInt(groupCursor.getColumnIndex("_id"));
            Log.d("data","Show data groupPos->" + groupPos + "ID->" + groupId);

            Cursor childCursor = bd.ReadData("select * from images where _id="+groupId);

            return childCursor;

        }

        @Override
        public int getChildrenCount(int groupPosition) {
            return 1;
        }