如何快速排序多维数组？

Question

我需要你的帮助。我做了一个数组，当我在不同的设备或模拟器上启动我的应用程序时，这个数组被分类为不同的类型，但我需要在每个设备上使用相同的顺序。该怎么做？

    var settings = [String: [ [String: String] ]]()
    settings = [ "cards":[ ], "groups":[ ] ]

    ...

    for card in db.prepare(table.order(orderN.asc)) {
       settings["cards"]?.append(["id":String(card[id]), "group_id":String(card[group_id]), "service":card[service], "bgcolor":card[bgcolor], "logoimg":card[logoimg]!, "balance_desc":card[balance_desc], "balance":"0.0", "balance_id":String(card[balance_id]), "uniqueID":card[uniqueID], "balance_currency":String(card[balance_currency]), "orderN":String(card[orderN])])
    }

    ...

    for group in db.prepare(table.order(orderN.asc)) {  
       settings["groups"]?.append(["name":group[name]!,"id":String(group[id]),"orderN":String(group[orderN])])
    }

    ...

例如， 在第一台设备上

print(settings) // ["cards": [["orderN": "0", "bgcolor": "0.0, 0.0, 0.0, 1.0", "balance": "0.0", "logoimg": "example.com/images/img.png", "uniqueID": "00a2413f74f4a3f186e439a67057de67", "group_id": "2", "id": "1", "service": "servicename", "balance_desc": "Description", "balance_id": "1", "balance_currency": "1"]], "groups": [["orderN": "0", "name": "GroupName", "id": "2"]]]

在第二台设备上

print(settings) // ["cards": [["orderN": "0", "uniqueID": "00a2413f74f4a3f186e439a67057de67", "service": "servicename", "id": "1", "bgcolor": "0.0, 0.0, 0.0, 1.0", "balance_currency": "1", "balance": "0.0", "group_id": "2", "logoimg": "example.com/images/img.png", "balance_id": "1", "balance_desc": "Description"]], "groups": [["id": "2", "orderN": "0", "name": "GroupName"]]]

感谢您的关注。

Answer 1

这是因为settings 不是Array，而是Dictionary。字典中键值对的顺序未定义。

如果您需要一些特定的顺序，您应该重新实现settings，可能将它们分开struct 或class，因为您将很难使用嵌套字典。