ios - 从字典中获取日期值

Question

我有一个这样声明的字典:

var result:[Workout] = []

结果中的值如下，使用print(result):

[Workout {
    date = 2019-03-06 22:18:41 +0000;
    name = Legday;
    exercise = Bbb;
    sets = 2;
    reps = 1;
    kg = 77;
    notes = Bb;
}, Workout {
    date = 2019-02-24 18:41:07 +0000;
    name = bvcj;
    exercise = Barbell Bench Press;
    sets = 1;
    reps = 1;
    kg = 87;
    notes = Kjj;
}, Workout {
    date = 2019-02-22 08:02:23 +0000;
    name = Chest;
    exercise = Barbell Bench Press;
    sets = 3;
    reps = 6;
    kg = 95;
    notes = Ok med spot;
}, Workout {
    date = 2019-02-22 08:02:23 +0000;
    name = Chest;
    exercise = Dips;
    sets = 2;
    reps = 6;
    kg = 40;
    notes = Lett, 1 ektra rep på siste sett;
}, Workout {
    date = 2019-02-22 08:02:23 +0000;
    name = Chest;
    exercise = Incline Barbell Bench Press;
    sets = 2;
    reps = 6;
    kg = 72.5;
    notes = Tungt;
}, Workout {
    date = 2019-02-22 08:02:23 +0000;
    name = Chest;
    exercise = Triceps Pushdown;
    sets = 3;
    reps = 12;
    kg = 14.5;
    notes = Ok;
}, Workout {
    date = 2019-02-19 13:38:35 +0000;
    name = Legday;
    exercise = Squat;
    sets = 2;
    reps = 2;
    kg = 77.5;
    notes = Lett;
}, Workout {
    date = 2019-02-19 13:38:35 +0000;
    name = Legday;
    exercise = Leg Press;
    sets = 9;
    reps = 8;
    kg = 100;
    notes = Tungt;
}, Workout {
    date = 2019-02-18 10:54:34 +0000;
    name = Legday;
    exercise = Barbell Squat;
    sets = 3;
    reps = 6;
    kg = 75;
    notes = Tungt;
}, Workout {
    date = 2019-02-18 10:54:34 +0000;
    name = Legday;
    exercise = Leg Extension;
    sets = 10;
    reps = 10;
    kg = 32;
    notes = Lett;
}, Workout {
    date = 2019-02-17 21:48:52 +0000;
    name = Legday;
    exercise = Squat;
    sets = 3;
    reps = 6;
    kg = 60;
    notes = Lett;
}, Workout {
    date = 2019-02-17 21:48:52 +0000;
    name = Legday;
    exercise = Tåhev;
    sets = 4;
    reps = 12;
    kg = 40;
    notes = Tungt;
}, Workout {
    date = 2019-02-17 21:48:52 +0000;
    name = Legday;
    exercise = Leg Extension;
    sets = 3;
    reps = 6;
    kg = 43.5;
    notes = Lett;
}]

我只想获取每次锻炼的日期。我尝试了一些不同的方法，最接近的是使用这个:

var remoteIndexPath = NSIndexPath(row: 0, section: 0)
func didSelectDayView(_ dayView: DayView, animationDidFinish: Bool) {

    let row = result[remoteIndexPath.row]

    for i in result.indices { // Prøv dette i stedet for: for i in 0 ..< Results.count {
        print(result[remoteIndexPath.row].date)
    }
}

问题是它只打印第一个值 13 次:

Optional(2019-03-06 22:18:41 +0000)
Optional(2019-03-06 22:18:41 +0000)
Optional(2019-03-06 22:18:41 +0000)
Optional(2019-03-06 22:18:41 +0000)
Optional(2019-03-06 22:18:41 +0000)
Optional(2019-03-06 22:18:41 +0000)
Optional(2019-03-06 22:18:41 +0000)
Optional(2019-03-06 22:18:41 +0000)
Optional(2019-03-06 22:18:41 +0000)
Optional(2019-03-06 22:18:41 +0000)
Optional(2019-03-06 22:18:41 +0000)
Optional(2019-03-06 22:18:41 +0000)
Optional(2019-03-06 22:18:41 +0000)

有什么想法/提示吗？

Answer 1

你可以试试

let res = result.filter { compareDate(date1:$0.date, date2:savedDate) }
print(res)