Repeat UILocalNotification on Specific day

Question

I need to set UILocalNotification, I just need to take hour and minute from DatePicker and need to set specific date ( like : Monday ) and repeat it on every Monday.

Answer 1

Here is the swift version:

func calculateTheNExtFriday(inputTime: NSDate) -> NSDate {
    let desiredWeekday = 6 // Friday

    let weekDateRange = NSCalendar.currentCalendar().maximumRangeOfUnit(NSCalendarUnit.Weekday)
    let daysInWeek = weekDateRange.length - weekDateRange.location + 1;

    let currentWeekday = NSCalendar.currentCalendar().components(NSCalendarUnit.Weekday, fromDate: inputTime).weekday
    let differenceDays = (desiredWeekday - currentWeekday + daysInWeek) % daysInWeek

    let dateComponents = NSDateComponents()
    dateComponents.day = differenceDays

    let calculatedFridayDate = NSCalendar.currentCalendar().dateByAddingComponents(dateComponents, toDate: inputTime, options: NSCalendarOptions.init(rawValue: 0))
    return calculatedFridayDate!
}

In this example, I use the desiredWeekday inside the function but you can use it as parameter as well.

NB: Keep in mind that the day 1 corresponds to Sunday, 2 -> Monday and so on