How can I get all the dates that come in between 2 date开发者_如何学运维s?
For example: Start date = 2011/01/25 End date = 2011/02/03
1) Find the no of days between two dates. Then,
for(i=0;i<noofdays;i++)
{
//Find the next date
//add to the array
}
To find number of days
To find next date
NSCalendarUnit
serves for defining the step between the dates & taking care of the dates being normalized.
iOS 8 API, Swift 2.0
func generateDates(calendarUnit: NSCalendarUnit, startDate: NSDate, endDate: NSDate) -> [NSDate] {
let calendar = NSCalendar.currentCalendar()
let normalizedStartDate = calendar.startOfDayForDate(startDate)
let normalizedEndDate = calendar.startOfDayForDate(endDate)
var dates = [normalizedStartDate]
var currentDate = normalizedStartDate
repeat {
currentDate = calendar.dateByAddingUnit(calendarUnit, value: 1, toDate: currentDate, options: NSCalendarOptions.MatchNextTime)!
dates.append(currentDate)
} while !calendar.isDate(currentDate, inSameDayAsDate: normalizedEndDate)
return dates
}
To find all days between two NSDates:
- (void)cerateDaysArray{
_daysArray = [NSMutableArray new];
NSCalendar *calendar = [[NSCalendaralloc]initWithCalendarIdentifier:NSGregorianCalendar];
[calendar setTimeZone:[NSTimeZone systemTimeZone]];
NSDate *startDate = [_minDate copy];
NSDateComponents *deltaDays = [NSDateComponents new];
[deltaDays setDay:1];
[_daysArray addObject:startDate];
while ([startDate compare:_maxDate] == NSOrderedAscending) {
startDate = [calendar dateByAddingComponents:deltaDays toDate:startDate options:0];
[_daysArray addObject:startDate];
}
}
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