日付を「@ dd/MM/yyyy hh：mm a」に降順で並べ替える方法

Question

この並べ替えの方法配列には日付と時刻が含まれています。同じ日付で並べ替える必要があります複数のエントリーを日付順に並べ替える必要があり、すべてのエントリーをドレッシング順に表示します。

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 = ""; 
     }, 
} 

Answer 1

この

- (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); 
}