Making a Local notification that only repeats on a specific day - ios

Question

I am working on a local notification for an app that should only fire on a specific day and repeat on that day until the user decided to remove it. An example notification is on that fires every Wednesday at 11:00am.
The function - scheduleLocalNotification is triggered when the user presses done on the Time picker.
var sundayNotification : UILocalNotification!
var mondayNotification : UILocalNotification!
var tuesdayNotification : UILocalNotification!
var wednesdayNotification : UILocalNotification!
var thursdayNotification : UILocalNotification!
var fridayNotification : UILocalNotification!
var saturdayNotification : UILocalNotification!
func scheduleLocalNotification() {
//Check the Dayname and match fireDate
if dayName == "Sunday" {
sundayNotification = UILocalNotification()
//timeSelected comes from the timePicker i.e. timeSelected = timePicker.date
sundayNotification.fireDate = fixNotificationDate(timeSelected)
sundayNotification.alertTitle = "Sunday's Workout"
sundayNotification.alertBody = "This is the message from Sunday's workout"
sundayNotification.alertAction = "Snooze"
sundayNotification.category = "workoutReminderID"
let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
appDelegate.saveContext()
UIApplication.sharedApplication().scheduleLocalNotification(sundayNotification)
} else if dayName == "Monday" {
mondayNotification = UILocalNotification()
mondayNotification.fireDate = fixNotificationDate(timeSelected)
mondayNotification.alertTitle = "Monday's Workout"
mondayNotification.alertBody = "This is the message from Monday's workout"
mondayNotification.alertAction = "Snooze"
mondayNotification.category = "workoutReminderID"
let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
appDelegate.saveContext()
UIApplication.sharedApplication().scheduleLocalNotification(mondayNotification)
} else if ..... }
}
func fixNotificationDate(dateToFix: NSDate) -> NSDate {
let dateComponets: NSDateComponents = NSCalendar.currentCalendar().components([NSCalendarUnit.Hour, NSCalendarUnit.Minute], fromDate: dateToFix)
dateComponets.second = 0
if dayName == "Sunday" {
dateComponets.weekday = 1 //n = 7
} else if dayName == "Monday" {
dateComponets.weekday = 2
} else if dayName == "Tuesday" {
dateComponets.weekday = 3
} else if dayName == "Wednesday" {
dateComponets.weekday = 4
} else if dayName == "Thursday" {
dateComponets.weekday = 5
} else if dayName == "Friday" {
dateComponets.weekday = 6
} else if dayName == "Saturday" {
dateComponets.weekday = 7
}
let fixedDate: NSDate! = NSCalendar.currentCalendar().dateFromComponents(dateComponets)
return fixedDate
}
After doing a check of the day to assign the notification the right UILocalNotification, this still strangely does not work e.g. setting different times on a different days (Sunday at 10:10am and Monday at 10:15am) for the notification does not change anything. The notification still fires on a day I did not select, i.e. Today at both those times instead of those days.
Any clues on what I could be doing wrong or missing?
Thanks in advance. :)

Answer 1

After some work, I came up with this. We start by changing the date to the first fire date the user selects.
func setNotificationDay(today: NSDate, selectedDay: Int) -> NSDate {
let daysToAdd: Int!
let calendar = NSCalendar.currentCalendar()
let weekday = calendar.component(.Weekday, fromDate: today)
if weekday > selectedDay {
daysToAdd = (7 - weekday) + selectedDay
} else {
daysToAdd = (selectedDay - weekday)
}
let newDate = calendar.dateByAddingUnit(.Weekday, value: daysToAdd, toDate: today, options: [])
return newDate! //if you don't have a date it'll crash
}
You can just use NSDate() instead of requiring it as a parameter. I'll leave that up to you.
Now, we need to set the notification. I didn't do anything with your fixNotificationDate(), but you can add it in easily. The key point here is to set notification.repeatInterval = .Weekday or it won't repeat. I also added a dictionary to set the day name. It's better than repeating the code as much as you did.
It does create a second call to NSCalendar, but you can probably find a way to avoid doing that in your code.
func scheduleLocalNotification(date: NSDate) {
let dayDic = [1:"Sunday",
2:"Monday",
3:"Tuesday",
4:"Wednesday",
5:"Thursday",
6:"Friday",
7:"Saturday"]
let calendar = NSCalendar.currentCalendar()
let weekday = calendar.component(.Weekday, fromDate: date)
let notification = UILocalNotification()
notification.fireDate = date
notification.repeatInterval = .Weekday
notification.alertTitle = String(format: "%#'s Workout", dayDic[weekday]!)
notification.alertBody = String(format: "This is the message from %#'s workout", dayDic[weekday]!)
notification.alertAction = "Snooze"
notification.category = "workoutReminderID"
notification.soundName = UILocalNotificationDefaultSoundName
UIApplication.sharedApplication().scheduleLocalNotification(notification)
}
And that should solve your problem. I didn't test it because it would take at least a week! ;)
Hope that helps!