ios - 按工作日名称swift3对字典数组进行排序

Question

我想按工作日名称对根数组进行排序。就像在根数组的第一个索引上应该有星期日、星期一、星期二等。

[{

    day = Monday;
    timingValues =     (
                {
            closeHour = 23;
            closeMin = 55;
            day = Monday;
            id = 2;
            openHour = 00;
            openMin = 00;
        }
    );
}, 

{

 day = Tuesday;

    timingValues =     (

                {
            closeHour = 00;
            closeMin = 11;
            day = Tuesday;
            id = 4;
            openHour = 12;
            openMin = 10;
        }
    );
}, {

    day = Sunday;
    timingValues =   (
                {
            closeHour = 23;
            closeMin = 07;
            day = Sunday;
            id = 5;
            openHour = 11;
            openMin = 07;
        }

);

}]

Answer 1

很多力解包，但你可以得到比较的想法，还需要确保字符串是正确的，我这里只是做1行作为引用，它不安全，在实际代码中应该做可选检查。

let dictArray = [["day": "Monday", "timingValues" : 1],
                     ["day" : "Tuesday", "timingValues" : 2],
                     ["day" : "Saturday", "timingValues" : 3],
                     ["day" : "Sunday", "timingValues" : 4]]
let b = dictArray.sorted(by: { DateFormatter().weekdaySymbols.index(of: ($0["day"]! as! String))! < DateFormatter().weekdaySymbols.index(of: ($1["day"]! as! String))! })

结果:

[["day": "Sunday", "timingValues": 4], ["day": "Monday", "timingValues": 1], ["day": "Tuesday", "timingValues": 2], ["day": "Saturday", "timingValues": 3]]