scroview嵌套listview，listview全部展开

最新推荐文章于 2023-04-24 15:49:45 发布

翻译最新推荐文章于 2023-04-24 15:49:45 发布 · 808 阅读

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本文介绍了一种根据ListView子项数量动态调整ListView高度的方法。通过遍历ListAdapter获取每个子项的高度并累加，最后设置ListView的总高度。这种方法适用于需要精确控制ListView布局的场景。

public static void setListViewHeightBasedOnChildren(ListView listView, int attHeight) {
        ListAdapter listAdapter = listView.getAdapter();
        if (listAdapter == null) {
            // pre-condition
            return;
        }

        int totalHeight = 0;
        for (int i = 0; i < listAdapter.getCount(); i++) {
            View listItem = listAdapter.getView(i, null, listView);
            listItem.measure(0, 0);
            totalHeight += listItem.getMeasuredHeight();
        }

        ViewGroup.LayoutParams params = listView.getLayoutParams();
        params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount()-1)) + attHeight;
        listView.setLayoutParams(params);
    }