How to avoid user selecting some date in UIDatePicker? - iphone

Question

I have to prompt users for choosing a date from a CoCoa UIDatePicker but avoiding him to select sundays ans saturdays, since my goal is to make them select a date for an appointment
The best way should be disabling that dates, in the same way of minimumDate property, but I was not able to find how to do that

Answer 1

You could do something like this:
UIDatePicker *datePicker = [[UIDatePicker alloc] init];
[datePicker addTarget:self action:#selector(dateChanged:) forControlEvent:UIControlEventValueChanged];
Implementation for dateChanged:
- (void)dateChanged:(id)sender {
UIDatePicker *datePicker = (UIDatePicker *)sender;
NSDate *pickedDate = datePicker.date;
NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *weekdayComponents = [gregorian components:NSWeekdayCalendarUnit fromDate:pickedDate];
NSInteger weekday = [weekdayComponents weekday];
[gregorian release];
if (weekday == 1 || weekday == 7) { // Sunday or Saturday
NSDate *nextMonday = nil;
if (weekday == 1)
nextMonday = [pickedDate dateByAddingTimeInterval:24 * 60 * 60]; // Add 24 hours
else
nextMonday = [pickedDate dateByAddingTimeInterval:2 * 24 * 60 * 60]; // Add two days
[datePicker setDate:nextMonday animated:YES];
return;
}
// Do something else if the picked date was NOT on Saturday or Sunday.
}
This way, when a date is picked that is either on a Saturday or Sunday, the date picker automatically selects the Monday after the weekend.
(Code untested!)