关于java：ExpandableListView数组列表不会按照我放的顺序保留

ExpandableListView array lists won't stay in the order I put them

本问题已经有最佳答案，请猛点这里访问。

我正在使用ExpandableListView，我在数组列表中设置了一些列表。
我将它们设置为某个顺序，即：

1	company, day of the week, posh vehicles, topgear vehicles

但是我做了什么，订单还原

1	posh vehicles, company, days of the week, topgear vehicles

任何人都可以帮我解决这里的问题是我用于stringArray的代码吗？

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public static HashMap<String, List<String>> getData() {

HashMap<String, List<String>> expandableListDetail = new HashMap<String, List<String>>();

List<String> listDataHeader = new ArrayList<String>();
// Adding child data
listDataHeader.add("Company");
listDataHeader.add("Please pick a day");
listDataHeader.add("Posh Vehicles");
listDataHeader.add("TopGear Vehicles");

List<String> CompanyName = new ArrayList<>();
CompanyName.add("Posh limos");
CompanyName.add("TopGear limos");

List<String> daysOftheWeek = new ArrayList<>();
daysOftheWeek.add("Monday");
daysOftheWeek.add("Tuesday");
daysOftheWeek.add("Wednesday");
daysOftheWeek.add("Thursday");
daysOftheWeek.add("Thursday");
daysOftheWeek.add("Friday");
daysOftheWeek.add("Saturday");
daysOftheWeek.add("Sunday");

List<String> poshvehicles = new ArrayList<>();
poshvehicles.add("Posh H2 limo");
poshvehicles.add("Iveco party bus");
poshvehicles.add("Merc party bus");
poshvehicles.add("Party coach");

List<String> topGearVehicles = new ArrayList<>();
topGearVehicles.add("TopGear H2 limo");
topGearVehicles.add("TopGear party bus");

expandableListDetail.put(listDataHeader.get(0),CompanyName);
expandableListDetail.put(listDataHeader.get(1),daysOftheWeek);
expandableListDetail.put(listDataHeader.get(2),poshvehicles);
expandableListDetail.put(listDataHeader.get(3),topGearVehicles);

return expandableListDetail;