Mark dates of Hijri Calendar - ios

Question

I'm new to iOS development (coming from Android development) and I need some help. I'm using Vurig's library to display a custom calendar control and mark multiple dates in the calendar.
The issue is I would like to mark Hijri dates rather than gregorian. How can I do that?
So far I've converted the Hijri date to gregorian to mark a date on the calendar, but it marks only one date whereas I would like to mark multiple dates in the calendar months.
The code so far:
-(void)calendarView:(VRGCalendarView *)calendarView switchedToMonth:(int)month targetHeight:(float)targetHeight animated:(BOOL)animated {
NSArray *dates;
NSDate *date = [self addDates:calendarView andDay:6 andMonth:10];
// if (month==8){
// dates = [NSArray arrayWithObjects:[NSNumber numberWithInt:5],[NSNumber numberWithInt:25], nil];
// }
// if (month==9) {
// dates = [NSArray arrayWithObjects:[NSNumber numberWithInt:1],[NSNumber numberWithInt:5], nil];
//
// }
//if (month==[[NSDate date] month]) {
NSDateComponents *dateComponents = [[NSCalendar currentCalendar] components:( NSWeekdayCalendarUnit | NSYearCalendarUnit | NSMonthCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSWeekCalendarUnit) fromDate:date];
int gmonth = [dateComponents month];
if (month == gmonth) {
dates = [NSArray arrayWithObjects:date, nil];
}
[calendarView markDates:dates];
}
-(void)calendarView:(VRGCalendarView *)calendarView dateSelected:(NSDate *)date {
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setTimeZone:[NSTimeZone systemTimeZone]]; [dateFormatter setDateFormat:#"dd MMMM"];
NSLog(#"Selected date = %#",[dateFormatter stringFromDate:date]);
//NSLog(#"Selected date = %#",date);
}
-(NSDate *)addDates:(VRGCalendarView *)calendarView andDay:(int)day andMonth:(int)month{
// Then create an Islamic calendar
NSCalendar *hijriCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSIslamicCalendar];
// And grab those date components for the same date
NSDateComponents *hijriComponents = [[NSDateComponents alloc] init];
hijriComponents.day = day;
hijriComponents.month = month;
hijriComponents.year = 1434;
NSDate *hdate = [hijriCalendar dateFromComponents:hijriComponents];
// Create a Gregorian Calendar
NSCalendar *gregorianCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
// Set up components of a Gregorian date
NSDateComponents *gregorianComponents = [gregorianCalendar components:(NSDayCalendarUnit |
NSMonthCalendarUnit |
NSYearCalendarUnit)
fromDate:hdate];
// Create the date
NSDate *date = [gregorianCalendar dateFromComponents:gregorianComponents];
NSLog(#"[In Hijri calendar ->] Date is %#", date);
return date;
}

Answer 1

All you need to do is pass an array of NSDates to the markDates: method. You don't need to convert to Gregorian first as an NSDate is simply a time stamp and is independent of calendars, time zones, and so forth.
I downloaded the VURIG Calendar sample project and in VRGViewController replaced the calendarView:switchedToMonth:targetHeight:animated: method with the following, which should illustrate exactly what you need:
-(void)calendarView:(VRGCalendarView *)calendarView switchedToMonth:(int)month targetHeight:(float)targetHeight animated:(BOOL)animated {
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSIslamicCalendar];
NSDateComponents *components = [[NSDateComponents alloc] init];
[components setDay:6];
[components setMonth:10];
[components setYear:1434];
NSDate *date1 = [calendar dateFromComponents:components];
[components setDay:10];
NSDate *date2 = [calendar dateFromComponents:components];
[calendarView markDates:#[date1,date2]];
}
This marked Aug 12 and Aug 16 on the calendar, and while I'm not familiar with the Hijri calendar from what I can tell that's accurate.