如何按升序对字符串中包含日期的数组进行排序 [英] How to sort the Array that contains date in strings in ascending order

问题描述

我有一系列字典，每本字典都包含一个日期参数.日期参数数组(包含在字典中)如下:

I have array of dictionaries ,In every dictionary contains one date parameter . The array of date parameters(contains in dictionaries) as follow:

 [@"16-1-2015 7:00PM",@"15-1-2014 11:30AM",@"14-1-2014 7:00PM",
 @"15-1-2015 6:30AM ".@"16-1-2015 8:30PM"]

我需要这样的输出:

[@"16-1-2015 8:30PM",@"16-1-2015 7:00PM",@"15-1-2015 6:30AM ",
@"15-1-2014 11:30AM",@"14-1-2014 7:00PM"];

推荐答案

你可以试试这个:

NSArray *dateStringArray = @[ @"16-1-2015 7:00PM", @"15-1-2014 11:30AM", @"14-1-2014 7:00PM", @"15-1-2015 6:30AM ", @"16-1-2015 8:30PM" ];

 - (NSArray *)sortDateStringArray:(NSArray *)dateStringArray
    {
        NSDateFormatter *dateFormater = [[NSDateFormatter alloc] init];
        [dateFormater setDateFormat:@"dd-MM-yyyy h:mma"];
        NSArray *sortedArray = [dateStringArray sortedArrayUsingComparator:^NSComparisonResult(NSString *obj1, NSString *obj2) {
          NSDate *date1 = [dateFormater dateFromString:obj1];
          NSDate *date2 = [dateFormater dateFromString:obj2];
          return [date2 compare:date1];
        }];
        return sortedArray;
    }

我认为最好将您的 dateString 转换为 NSDate 然后比较
希望这有帮助！！！

I think it better convert your dateString to NSDate then compare
Hope this help !!!

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