使用第一个索引 Swift 对数组中的数组重新排序

Question

我正在尝试对数组进行排序，如下所示：

var arrayTst = [
[12443, "Starbucks", "Coffee1", "Coffee11", "Tea1", "Drinks1"],
[12495, "Coffee Bean", "Coffee2", "Tea2", "Cookies2"],
[13000, "GroceryMarket", "Tea3", "Bubble Tea3", "Shaved Ice3", "Mangoes"], 
[10000, "Costco", "Soda4", "Salads4", "Pizza4"]
]

如何使用第一个索引(显示距离(从最小到最大对此列表进行排序？例如，由于我希望这个数组按距离从最小到最大排序，我希望它排序为：

var arrayTst = [
[10000, "Costco", "Soda4","Salads4","Pizza4"],
[12443, "Starbucks", "Coffee1","Coffee11", "Tea1", "Drinks1"],
[12495, "Coffee Bean", "Coffee2", "Tea2","Cookies2"],
[13000, "GroceryMarket", "Tea3", "Bubble Tea3", "Shaved Ice3", "Mangoes"]
]

距离是使用 .distance(from： currentLocation( 计算的，并通过 for 循环放入数组中。

Answer 1

您需要重新考虑数据结构。不仅仅是一个Any数组，看起来你有一个数组...

struct Store {
let distance: Double
let name: String
let products: [String]
}

然后。。。

var arrayTst = [
Store(distance: 12443, name: "Starbucks", products: ["Coffee11", "Tea1", "Drinks1"]),
Store(distance: 12495, name: "Coffee Bean", products: ["Coffee2", "Tea2", "Cookies2"]),
etc…
]
let sortedArray = arrayTst.sorted { $0.distance < $1.distance }