sorting the NSArray using date format

Question

but I didn't got the current output, I want to sort the array by using date format,my array date is in string format.that data is like this

( Fri,10 Apr,16:59 pm, Fri,10 Apr,18:37 pm, Fri,10 Apr,22:28 pm, Sat,11 Apr,16:59 pm )

so I want sort this data correctly

Answer 1

Try this -

NSString *str1 = @"Fri,10 Apr,16:59";
NSString *str2 = @"Fri,10 Apr,14:37";
NSString *str3 = @"Sat,11 Apr,16:59";    

NSArray *arr = [NSArray arrayWithObjects:str1, str2, str3, nil];
arr = [arr sortedArrayUsingFunction:dateSort context:nil];

//The date sort function
NSComparisonResult dateSort(NSString *s1, NSString *s2, void *context) {

    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"EE,dd MMM,HH:mm"];

    NSDate *d1 = [formatter dateFromString:s1];
    NSDate *d2 = [formatter dateFromString:s2];

    return [d1 compare:d2]; // ascending order
    return [d2 compare:d1]; // descending order
}

See result screenshot-