Objective c “如何对日期进行排序”；年月日：年月日；关于日期和时间，按降序排列

如何排序此数组包含日期和时间，我需要为相同的日期排序，如果我有相同的日期多个条目，我需要根据时间按降序排序，它将按顺序显示所有条目

    data= {
     {
            dateAndTime = "04/03/2017 09:52 PM";
            deviceImage = "";
            dialOrReceive = 0;
            number = "+918839752179";
            profilePhoto = "";
        },
            {
            dateAndTime = "02/03/2017 06:54 PM";
            deviceImage = "";
            deviceImage = "";
            dialOrReceive = 0;
            number = "+918839752179";
            profilePhoto = "";
        },
            {
            dateAndTime = "04/03/2017 05:36 PM";
            deviceImage = "";
            dialOrReceive = 0;
            number = "+918839752179";
            profilePhoto = "";
        },
            {
            dateAndTime = "03/03/2017 04:48 PM";
            deviceImage = "";
            dialOrReceive = 0;
            number = "+918839752179";
            profilePhoto = "";
        }, {
            dateAndTime = "03/03/2017 06:48 PM";
            deviceImage = "";
            dialOrReceive = 0;
            number = "+918839752179";
            profilePhoto = "";
        },{
            dateAndTime = "02/03/2017 09:36 PM";
            deviceImage = "";
            dialOrReceive = 0;
            number = "+918839752179";
            profilePhoto = "";
        },
}

试试这个

- (void)sortDict {

    NSDictionary *dict = @{
                           @"data" : @[@{
                                           @"dateAndTime" : @"04/03/2017 09:52 PM",
                                           @"deviceImage" : @"",
                                           @"dialOrReceive" : @0,
                                           @"number" : @"+918839752179",
                                           @"profilePhoto" : @""
                                           },
                                       @{
                                           @"dateAndTime" : @"02/03/2017 06:54 PM",
                                           @"deviceImage" : @"",
                                           @"dialOrReceive" : @0,
                                           @"number" : @"+918839752179",
                                           @"profilePhoto" : @""
                                           },
                                       @{
                                           @"dateAndTime" : @"04/03/2017 05:36 PM",
                                           @"deviceImage" : @"",
                                           @"dialOrReceive" : @0,
                                           @"number" : @"+918839752179",
                                           @"profilePhoto" : @""
                                           },
                                       @{
                                           @"dateAndTime" : @"03/03/2017 04:48 PM",
                                           @"deviceImage" : @"",
                                           @"dialOrReceive" : @0,
                                           @"number" : @"+918839752179",
                                           @"profilePhoto" : @""
                                           },
                                       @{
                                           @"dateAndTime" : @"03/03/2017 06:48 PM",
                                           @"deviceImage" : @"",
                                           @"dialOrReceive" : @0,
                                           @"number" : @"+918839752179",
                                           @"profilePhoto" : @""
                                           },
                                       @{
                                           @"dateAndTime" : @"02/03/2017 09:36 PM",
                                           @"deviceImage" : @"",
                                           @"dialOrReceive" : @0,
                                           @"number" : @"+918839752179",
                                           @"profilePhoto" : @""
                                           },
                                       @{
                                           @"dateAndTime" : @"02/03/2017 07:36 AM",
                                           @"deviceImage" : @"",
                                           @"dialOrReceive" : @0,
                                           @"number" : @"+918839752179",
                                           @"profilePhoto" : @""
                                           }
                                       ]
                            };

    NSDateFormatter *formatter = [NSDateFormatter new];
    formatter.dateFormat = @"dd/MM/yyyy hh:mm a";

    NSArray *arr = [dict objectForKey:@"data"];

    arr = [arr sortedArrayUsingComparator:^NSComparisonResult(id  _Nonnull obj1, id  _Nonnull obj2) {

        NSDate *date1 = [formatter dateFromString:[obj1 objectForKey:@"dateAndTime"]];
        NSDate *date2 = [formatter dateFromString:[obj2 objectForKey:@"dateAndTime"]];

        return [date2 compare:date1];
    }];

    NSLog(@"%@", arr);
}

---

任何尝试，你都尝试了什么？请发布代码段key

data

的对象似乎是数组，而不是字典。您需要将日期字符串映射到

NSDate

才能对数组进行排序。我正在成功地对日期进行排序：NSSortDescriptor*sortOrder=[NSSortDescriptor sortDescriptorWithKey:@“dateAndTime”升序：否]；arr=[arr sortedArrayUsingDescriptors:[NSArray arrayWithObject:sortOrder]]；这一次我遇到了一些问题：（@kumar什么意思是“化妆单”？谢谢@schmidt9I正在排序，但也不是以正确的方式来的时间没有正确排序@schmidt9@kumar请再说一遍，日期和时间需要什么排序顺序？我需要排序顺序：比如2017年04月03日09:52 PM 2017年03月04日05:36 PM 2017年03月03日06:48 PM 2017年03月03日04:48 PM 2017年03月02日09:36 PM 2017年03月02日06:54PM@kumar好的，我编辑了我的答案，它按照这个顺序输出，我又添加了一条记录来检查AM案例