android expandablelistview 高度自适应,计算ExpandableListView高度

项目中各种奇葩需求，记录一下 下次直接copy

public void setExpandableListViewHeightBasedOnChildren(ExpandableListView listView) {

ExpandableListAdapter listAdapter = listView.getExpandableListAdapter();

if (listAdapter == null) {

// pre-condition

return;

}

int totalHeight = 0;

height.clear();

for (int i = 0; i < listAdapter.getGroupCount(); i++) {

View listItem = listAdapter.getGroupView(i, true, null, listView);

listItem.measure(0, 0);

totalHeight += listItem.getMeasuredHeight();

for (int j = 0; j < listAdapter.getChildrenCount(i); j++) {

View childView = listAdapter.getChildView(i, j, false, null,

listView);

childView.measure(0, 0);

totalHeight += childView.getMeasuredHeight();

}

// 存储组的位置，不需要可删除

height.add(totalHeight);

}

ViewGroup.LayoutParams params = listView.getLayoutParams();

params.height = totalHeight

+ (listView.getDividerHeight() * (listAdapter.getGroupCount() - 1));

listView.setLayoutParams(params);

}