Dictionary [String: String] keys order changed when converted to array swift

问题:

I have a dictionary like below,

var dataSource: [String: String] = ["FirstName": "Austin",                                     "ListName": "Michael",                                     "Address": "Street Address",                                     "City": "Chennai"]

I want to populate these values in a UITableView, so I tried to get all the keys from Dictionary to an Array like below,

let dataArray = Array(dataSource.keys)

I got the output as [String] like,

["LastName", "FirstName", "City", "Address"]

The problem is, the order of the keys has changed, I want the array in the same order as dictionary has.

Can you anyone help?

回答1:

Use plain dictionary as tableview datasource is bad idea.

However Dictionary can not be sorted. So it doesn't matter in what order you add your keys-values to the dictionary.

If you need sorted then use array of dictionary instead.

You should use models instead of plain dictionary that is easy to maintain :]

like

struct User {      var firstName:String?     var lastName:String?     var address:String?     var city:String? }

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