ExpandableListView動態改變高度

 

        private void setListViewHeight(ExpandableListView listView,
                                   int group) {
        ExpandableListAdapter listAdapter = (ExpandableListAdapter) listView.getExpandableListAdapter();
        int totalHeight = 0;
        int desiredWidth = View.MeasureSpec.makeMeasureSpec(listView.getWidth(),
                View.MeasureSpec.EXACTLY);
        for (int i = 0; i < listAdapter.getGroupCount(); i++) {
            View groupItem = listAdapter.getGroupView(i, false, null, listView);
            groupItem.measure(desiredWidth, View.MeasureSpec.UNSPECIFIED);

            totalHeight += groupItem.getMeasuredHeight();

            if (((listView.isGroupExpanded(i)) && (i != group))
                    || ((!listView.isGroupExpanded(i)) && (i == group))) {
                for (int j = 0; j < listAdapter.getChildrenCount(i); j++) {
                    View listItem = listAdapter.getChildView(i, j, false, null,
                            listView);
                    listItem.measure(desiredWidth, View.MeasureSpec.UNSPECIFIED);

                    totalHeight += listItem.getMeasuredHeight();

                }
            }
        }

        ViewGroup.LayoutParams params = listView.getLayoutParams();
        int height = totalHeight
                + (listView.getDividerHeight() * (listAdapter.getGroupCount() - 1));
        if (height < 10)
            height = 200;
        params.height = height;
        listView.setLayoutParams(params);
        listView.requestLayout();

    }
    private void setListViewHeight(ExpandableListView listView
                                   ) {
        ExpandableListAdapter listAdapter = (ExpandableListAdapter) listView.getExpandableListAdapter();
        int totalHeight = 0;
        int desiredWidth = View.MeasureSpec.makeMeasureSpec(listView.getWidth(),
                View.MeasureSpec.EXACTLY);
        for (int i = 0; i < listAdapter.getGroupCount(); i++) {
            View groupItem = listAdapter.getGroupView(i, false, null, listView);
            groupItem.measure(desiredWidth, View.MeasureSpec.UNSPECIFIED);

            totalHeight += groupItem.getMeasuredHeight();


        }

        ViewGroup.LayoutParams params = listView.getLayoutParams();
        int height = totalHeight
                + (listView.getDividerHeight() * (listAdapter.getGroupCount() - 1));
        if (height < 10)
            height = 200;
        params.height = height;
        listView.setLayoutParams(params);
        listView.requestLayout();

    }