我正在尝试根据具有日期的密钥对字典数组进行排序。因此，排序实际上必须在日期的基础上完成。但我不知道为什么sortedArrayUsingComparator没有对数组进行排序，而是我将旧数组放回原处。尽管如此，这些值在对象（obj1，obj2）中都是正确的。
这是过滤器数组：
(
{
age = 26;
"already_reported" = no;
"already_sync" = no;
"complete_name" = "Ghazalahhhhhhhhhhhhh Khan";
distance = "7.92353";
"first_name" = Ghazalahhhhhhhhhhhhh;
id = 288;
"last_chat_details" = (
{
"from_xmpp_id" = ghazalah41e21475158541;
id = 9614;
message = H;
"message_est_timing" = "2016-11-02 08:30:09";
timestamp = 1478075409813132;
"to_xmpp_id" = annungdg1475217973;
"xmpp_message_id" = "F67A8495-E700-485B-A0B3-49C854E4FA45";
}
);
"last_name" = Khan;
"last_played_music" = (
{
album = "Haan Kargi (Jatt.fm)";
artist = "Ammy Virk (Mr-Jatt.com)";
bpm = 0;
"created_at" = "0000-00-00 00:00:00";
duration = "3.55";
genre = "Single Tracks (Mr-Jatt.com)";
id = 69251;
"is_recently_played" = 1;
"persistent_id" = 7705218523513871878;
title = "Haan Kargi (Mr-Jatt.com)";
"updated_at" = "0000-00-00 00:00:00";
"user_id" = 288;
}
);
"matched_profile_image" = (
{
"est_date_time" = "2016-10-04 04:08:34";
id = 479;
"image_order" = 3;
"is_profile_image" = no;
"main_image_id" = 2225;
"main_image_path" = "/files/profile_images/934820161004080721.jpg";
"thumb_image_path" = "/files/profile_images/t_934820161004080721.jpg";
"user_id" = 288;
},
{
"est_date_time" = "2016-10-04 04:08:34";
id = 480;
"image_order" = 2;
"is_profile_image" = no;
"main_image_id" = 2226;
"main_image_path" = "/files/profile_images/685220161004080800.jpg";
"thumb_image_path" = "/files/profile_images/t_685220161004080800.jpg";
"user_id" = 288;
},
{
"est_date_time" = "2016-10-28 06:08:37";
id = 552;
"image_order" = 1;
"is_profile_image" = yes;
"main_image_id" = 2313;
"main_image_path" = "/files/profile_images/825720161028100832.jpg";
"thumb_image_path" = "/files/profile_images/t_825720161028100832.jpg";
"user_id" = 288;
}
);
"short_description" = Church;
username = ghazalah41e21475158541;
},
{
age = 26;
"already_reported" = no;
"already_sync" = no;
"complete_name" = "Michael Berrin";
distance = "7.92490";
"first_name" = Michael;
id = 310;
"last_chat_details" = (
{
"from_xmpp_id" = michaelgbmh1477565051;
id = 9143;
message = Hi;
"message_est_timing" = "2016-11-01 07:43:46";
timestamp = 1477986226750744;
"to_xmpp_id" = annungdg1475217973;
"xmpp_message_id" = "CD8FD64D-1370-41AD-8731-BC2A4C16EB6D";
}
);
"last_name" = Berrin;
"last_played_music" = (
{
album = "T-Series";
artist = "";
bpm = 0;
"created_at" = "0000-00-00 00:00:00";
duration = "5.04";
genre = "";
id = 72284;
"is_recently_played" = 1;
"persistent_id" = 4446247237416765338;
title = "Dheere Dheere Se Meri Zindagi Video Song (OFFICIAL) Hrithik Roshan, Sonam Kapoor | Yo Yo Honey Singh - YouTube";
"updated_at" = "0000-00-00 00:00:00";
"user_id" = 310;
}
);
"matched_profile_image" = (
{
"est_date_time" = "2016-10-27 07:04:10";
id = 543;
"image_order" = 4;
"is_profile_image" = no;
"main_image_id" = 2303;
"main_image_path" = "/files/profile_images/186120161027110402.jpg";
"thumb_image_path" = "/files/profile_images/t_186120161027110402.jpg";
"user_id" = 310;
},
{
"est_date_time" = "2016-10-27 07:12:52";
id = 544;
"image_order" = 3;
"is_profile_image" = no;
"main_image_id" = 2304;
"main_image_path" = "/files/profile_images/132120161027111225.jpg";
"thumb_image_path" = "/files/profile_images/t_132120161027111225.jpg";
"user_id" = 310;
},
{
"est_date_time" = "2016-10-27 07:12:52";
id = 545;
"image_order" = 1;
"is_profile_image" = yes;
"main_image_id" = 2305;
"main_image_path" = "/files/profile_images/270620161027111236.jpg";
"thumb_image_path" = "/files/profile_images/t_270620161027111236.jpg";
"user_id" = 310;
},
{
"est_date_time" = "2016-10-27 07:12:52";
id = 546;
"image_order" = 2;
"is_profile_image" = no;
"main_image_id" = 2306;
"main_image_path" = "/files/profile_images/920120161027111247.jpg";
"thumb_image_path" = "/files/profile_images/t_920120161027111247.jpg";
"user_id" = 310;
}
);
"short_description" = "";
username = michaelgbmh1477565051;
},
{
age = 22;
"already_reported" = no;
"already_sync" = no;
"complete_name" = "Lisa Benson";
distance = "7.92195";
"first_name" = Lisa;
id = 287;
"last_chat_details" = {
};
"last_name" = Benson;
"last_played_music" = (
{
album = "";
artist = "";
bpm = 125;
"created_at" = "0000-00-00 00:00:00";
duration = "3.1";
genre = "";
id = 76890;
"is_recently_played" = 1;
"persistent_id" = 577117298;
title = "Avicii -";
"updated_at" = "0000-00-00 00:00:00";
"user_id" = 287;
}
);
"matched_profile_image" = (
{
"est_date_time" = "2016-09-29 08:54:10";
id = 459;
"image_order" = 2;
"is_profile_image" = no;
"main_image_id" = 2200;
"main_image_path" = "/files/profile_images/858820160929125409.jpg";
"thumb_image_path" = "/files/profile_images/t_858820160929125409.jpg";
"user_id" = 287;
},
{
"est_date_time" = "2016-10-04 06:58:35";
id = 481;
"image_order" = 1;
"is_profile_image" = no;
"main_image_id" = 2227;
"main_image_path" = "/files/profile_images/292820161004105734.jpg";
"thumb_image_path" = "/files/profile_images/t_292820161004105734.jpg";
"user_id" = 287;
}
);
"short_description" = "";
username = lisavmds1475153650;
}
)
这是我的代码，请帮助：
let tempArr: NSArray! = self.filteredArray.sortedArrayUsingComparator({
(obj1:AnyObject!, obj2:AnyObject!) -> NSComparisonResult in
let dateStr1 = (obj1["last_chat_details"] as! NSArray).firstObject!["message_est_timing"] as! String
let date1: NSDate = dateFormatter.dateFromString(dateStr1 as String)!
let dateStr2 = (obj2["last_chat_details"] as! NSArray).firstObject!["message_est_timing"] as! NSString
let date2: NSDate = dateFormatter.dateFromString(dateStr2 as String)!
return date2.compare(date1)
}
)
print("the temp msgs are\(tempArr)")
enter code here
答案 0 :(得分：0)
这是你想要的吗？
let array = [
["message_est_timing" : Date(timeIntervalSince1970: 100)] ,
["message_est_timing" : Date(timeIntervalSince1970: 300)] ,
["message_est_timing" : Date(timeIntervalSince1970: 400)]
]
let newArr = array.sorted { (dict1, dict2) -> Bool in
let date1 = dict1["message_est_timing"]!
let date2 = dict2["message_est_timing"]!
return date1.compare(date2).rawValue == 1 ? true : false
}
newArr将按日期正确排序。