ListContainer代码获取高度不准的问题有懂的吗？

private void setListContainerHeight(ListContainer listContainer){

        if(listContainer == null){

            return;

        }

        BaseItemProvider itemProvider = listContainer.getItemProvider();

        if(itemProvider == null){

            return;

        }

        int totalHeight = 0;

        for (int i = 0; i < itemProvider.getCount(); i++) {

            Component component = itemProvider.getComponent(i, null, listContainer);

            component.estimateSize(0,0);

            totalHeight += component.getEstimatedHeight();

        }

        ComponentContainer.LayoutConfig layoutConfig = listContainer.getLayoutConfig();

        layoutConfig.height = totalHeight;

        listContainer.setLayoutConfig(layoutConfig);

    }
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