Set Local Notification for Specific Time - ios

Question

I am trying to schedule a local notification so it will occur at 9:00pm and repeat once a week. I have the following code and I keep receiving a error that says "Cannot assign value of type NSDateComponents to .fireDate. I understand .fireDate will only accept NSDate types but. I can not figure out a way to set the hour variable and minute variable for a NSDate type because I don't think it is possible to do this.
func Notification(){
let dateComponents = NSDateComponents()
dateComponents.day = 4
dateComponents.month = 7
dateComponents.year = 2016
dateComponents.hour = 21
dateComponents.minute = 00
let Notification = UILocalNotification()
Notification.alertAction = "Go Back To App"
Notification.alertBody = "Did you complete your HH and QC?"
Notification.repeatInterval = NSCalendarUnit.WeekOfYear
Notification.timeZone = NSTimeZone.defaultTimeZone()
Notification.fireDate = dateComponents
UIApplication.sharedApplication().scheduleLocalNotification(Notification)
}

Answer 1

Here is how you do it.
Fully Tested on Swift 2.0
//Note I have taken date time from date picker
func scheduleLocalNotification() {
let localNotification = UILocalNotification()
localNotification.fireDate = fixNotificationDate(datePicker.date)
localNotification.alertBody = "Hey, you must go shopping, remember?"
localNotification.alertAction = "View List" // Change depending on your action
localNotification.category = "reminderCategory"
UIApplication.sharedApplication().scheduleLocalNotification(localNotification)
}
//This function will help you in generating fire date.
func fixNotificationDate(dateToFix: NSDate) -> NSDate {
let dateComponets: NSDateComponents = NSCalendar.currentCalendar().components([NSCalendarUnit.Day, NSCalendarUnit.Month, NSCalendarUnit.Year, NSCalendarUnit.Hour, NSCalendarUnit.Minute], fromDate: dateToFix)
dateComponets.second = 0
let fixedDate: NSDate! = NSCalendar.currentCalendar().dateFromComponents(dateComponets)
return fixedDate
}
Don't forget to request permission for push notification.
Link to my project i worked on
https://drive.google.com/open?id=0B2csGr9uKp1DR0ViZFZMMEZSdms

Answer 2

You should get date from date components like this:
let calendar = NSCalendar(identifier: NSCalendarIdentifierGregorian)!
calendar.timeZone = NSTimeZone.localTimeZone()
calendar.locale = NSLocale.currentLocale()
let date = calendar.dateFromComponents(dateComponents)!
Notification.fireDate = date