A Objective-C implementation of calendar view for iOS.
All the math job about date is done by NSCalendar. You can check it out in Helper.m. There are detailed comments.
You can easily initialize a calendar view by providing the right frame, a starting and an ending date.
VFCalendarView *cal = [[VFCalendarView alloc] initWithFrame:CGRectMake(0, 30.f, CGRectGetWidth(self.view.bounds), 0) fromDate:[NSDate date] toDate:[Helper changeMonthFrom:[NSDate date] byIncrement:3]];
[self.view addSubview:cal];
Current day looks like this:
Highlighted days look like this:
