Not getting notifications from LocalNotification.fireDate

Question

Why doesn't it show a notification after the button has been pressed?

If the fireDate was NSDate(timeIntervalSinceNow: 10) it would work fine

How can i get notifications from an array?

    @IBAction func buttonPressed(sender: AnyObject) {

    var stringDate = dateFormatter.stringFromDate(timePicker.date)
    alarmArray.append(stringDate)

    let fixedAlarmArray = alarmArray
    NSUserDefaults.standardUserDefaults().setObject(fixedAlarmArray, forKey: "alarmArray")
    NSUserDefaults.standardUserDefaults().synchronize()


    //Local Notification
    var localNotification:UILocalNotification = UILocalNotification()
    localNotification.alertAction = "Go to app"
    localNotification.alertBody = "Its Time!"
    localNotification.fireDate = timePicker.date
    localNotification.timeZone = NSTimeZone.defaultTimeZone()
    UIApplication.sharedApplication().scheduleLocalNotification(localNotification)

    self.view.endEditing(true)

}

Answer 1

The date specified in fireDate is interpreted according to the value of this property. If you specify nil (the default), the fire date is interpreted as an absolute GMT time, which is suitable for cases such as countdown timers. If you assign a valid NSTimeZone object to this property, the fire date is interpreted as a wall-clock time that is automatically adjusted when there are changes in time zones; an example suitable for this case is an an alarm clock.

localNotification.fireDate = timePicker.date
localNotification.timeZone = NSTimeZone.defaultTimeZone()
// the problem is here, you are setting the timezone after inputing your date

you should use localtimeZone and set it before setting the fireDate

localNotification.timeZone = NSTimeZone.localTimeZone()
localNotification.fireDate = timePicker.date

Note:

In iOS 8 and later, apps that use either local or remote notifications must register the types of notifications they intend to deliver. The system then gives the user the ability to limit the types of notifications your app displays. The system does not badge icons, display alert messages, or play alert sounds if any of these notification types are not enabled for your app, even if they are specified in the notification payload.

do like this:

UIApplication.sharedApplication().registerUserNotificationSettings(UIUserNotificationSettings(forTypes: UIUserNotificationType.Badge | UIUserNotificationType.Sound | UIUserNotificationType.Alert, categories: nil))

create an extension to combine the time picked with 0 seconds as follow:

extension NSDate {

    var day:            Int { return NSCalendar.currentCalendar().components(NSCalendarUnit.CalendarUnitDay,           fromDate: self).day           }
    var month:          Int { return NSCalendar.currentCalendar().components(NSCalendarUnit.CalendarUnitMonth,         fromDate: self).month         }
    var year:           Int { return NSCalendar.currentCalendar().components(NSCalendarUnit.CalendarUnitYear,          fromDate: self).year          }
    var minute:         Int { return NSCalendar.currentCalendar().components(NSCalendarUnit.CalendarUnitMinute,        fromDate: self).minute }
    var hour:           Int { return NSCalendar.currentCalendar().components(NSCalendarUnit.CalendarUnitHour,          fromDate: self).hour   }

    var fireDate: NSDate {
        return NSCalendar.currentCalendar().dateWithEra(1, year: year, month: month, day: day, hour: hour, minute: minute, second: 0, nanosecond: 0)!
    }
}

then just use it as follow:

localNotification.fireDate = timePicker.date.fireDate