How can we set DateAndTime at Ascending in ios - ios

Question

Hi i am new for ios and i am integrating my app with services and i am getting here trip creation TimeandDate values and storing that values one separate Array and also i am getting pickUpAdress values from services and storing them one separate arrayList
After storing in arrayList i am set date values at "Ascending" order in my tableList
after set "Ascending" when i display them in tableList both array-list data they are mismatching to one another please help me how can i resolve this problem how can i set my Adrress array values for matching to related DateandTimes
code:-
#import "ViewController.h"
#interface ViewController ()
{
NSSortDescriptor* sortOrder;
NSArray * ToBeReadyTimeArray1;
NSMutableArray * ToBeReadyTimeArray ,*finalToBeReadyTimeArray,*AdressArray;
UITableView * MaintableView;
}
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
ToBeReadyTimeArray1 = [[NSArray alloc]init];
ToBeReadyTimeArray = [[NSMutableArray alloc]initWithObjects:#"02/17/2016",#"03/13/2016",#"04/18/2016",#"05/21/2016", nil];
finalToBeReadyTimeArray =[[NSMutableArray alloc]init];
AdressArray = [[NSMutableArray alloc]initWithObjects:#"Adress1",#"Adress2",#"Adress3",#"Adress4", nil];
//Arange Date formate At Assending order:-
sortOrder = [NSSortDescriptor sortDescriptorWithKey: #"self" ascending: YES];
ToBeReadyTimeArray1 = [ToBeReadyTimeArray sortedArrayUsingDescriptors: [NSArray arrayWithObject: sortOrder]];
for (NSString *dte in ToBeReadyTimeArray1){
NSDateFormatter *aDateFormatter = [[NSDateFormatter alloc] init];
[aDateFormatter setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0]];
[aDateFormatter setDateFormat:#"MM/dd/yyyy"];
NSDate * parsed = [aDateFormatter dateFromString:dte];
[aDateFormatter setDateFormat:#"dd MMM yyyy"];
NSString *aFormattedElapsedTime = [aDateFormatter stringFromDate:parsed];
NSLog(#"tobe Ready time %#",aFormattedElapsedTime);
[finalToBeReadyTimeArray addObject:aFormattedElapsedTime];
}
}

Answer 1

I presume you are trying to list pick up times / address with some sorted order. If that's so, i would have created a NSArray of Booking or Trip models which would contain the information as Address (NSString *) and PickUpTime (NSDate *) and then would have implemented a sorting method using the property as variable key.
In my case, I implemented an array of booking models which has pickUpTime and address.
#property (nonatomic, retain) NSNumber *pickUpTime; // Timestamp instead of NSDate ...
#property (nonatomic, retain) NSString *address;
I implemented a category method for NSArray. Please note that sort order enumerations are manually implemented.
+ (NSArray *)sortArray:(NSArray *)unSortedArray byOrder:(SortOrder)sortOrder usingVariableKey:(NSString *)variableKey {
NSArray *sortedArray = [NSArray array];
BOOL isAscendingOrder = NO;
if (sortOrder == SortOrderAscending) {
isAscendingOrder = YES;
}
if (unSortedArray) {
NSSortDescriptor *valueDescriptor = [[NSSortDescriptor alloc] initWithKey:variableKey ascending:isAscendingOrder];
NSArray *descriptors = [NSArray arrayWithObject:valueDescriptor];
sortedArray = [[unSortedArray sortedArrayUsingDescriptors:descriptors] mutableCopy];
}
return sortedArray;
}
Then, i invoked the following ...
// Here, resultMutableArray is a mutable array of booking models ...
NSArray *resultArray = [NSArray sortArray:[resultMutableArray copy] byOrder:SortOrderDescending usingVariableKey:#"pickUpTime"];