swift - Incendio de notificación rápida de datePicker

localnotification

Question

Quiero configurar como notificación local fireDate la fecha de mi datePicker. Encontré ese código de otra respuesta en SO :

 @IBOutlet var myDatePicker: UIDatePicker!
@IBOutlet var mySwitch: UISwitch!
var localNotification = UILocalNotification() // You just need one
var notificationsCounter = 0
// put your functions now
func datePicker() { myDatePicker.datePickerMode = UIDatePickerMode.Time }
func notificationsOptions() {
localNotification.timeZone = NSTimeZone.localTimeZone()
localNotification.repeatInterval = .CalendarUnitDay
UIApplication.sharedApplication().scheduleLocalNotification(localNotification)
localNotification.alertAction = "Open App"
localNotification.alertBody = "Here is the seven o''clock notification"
localNotification.soundName = UILocalNotificationDefaultSoundName
localNotification.applicationIconBadgeNumber = UIApplication.sharedApplication().applicationIconBadgeNumber + 1
// you may add arbitrary key-value pairs to this dictionary.
// However, the keys and values must be valid property-list types
// if any are not, an exception is raised.
// localNotification.userInfo = [NSObject : AnyObject]?
}
func toggleSwitch(){
if mySwitch.on{
localNotification.fireDate = myDatePicker.date
} else {
localNotification.fireDate = NSDate(timeIntervalSinceNow: 999999999999) // will never be fired
}
}
override func viewDidLoad() {
super.viewDidLoad()
datePicker()
notificationsOptions()
// Do any additional setup after loading the view, typically from a nib.
}

Pero no funciona, incluso si todo parece correcto ... ¿dónde está el problema?

Answer 1

Parece que la propiedad fireDate solo se establece dentro del método toggleSwitch() . ¿Cómo se está llegando a ese método? Sugeriría que muevas el contenido de ese método directamente a tu método de notificationsOptions() .

Como datePicker() , es posible que desee considerar nombres ligeramente más útiles para sus métodos: datePicker() y notificationOptions() pueden causar dolores de cabeza de mantenimiento más adelante porque no son muy descriptivos.

Answer 2

Pruebe de esta manera:

class ViewController: UIViewController {
@IBOutlet var datePicker: UIDatePicker!
@IBOutlet var notificationSwitch: UISwitch!
let localNotification = UILocalNotification()
override func viewDidLoad() {
super.viewDidLoad()
setUpNotificationsOptions()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func setUpNotificationsOptions() {
datePicker.datePickerMode = .Time
localNotification.timeZone = NSTimeZone.localTimeZone()
localNotification.repeatInterval = .Day
localNotification.alertAction = "Open App"
localNotification.alertBody = "a notification"
localNotification.soundName = UILocalNotificationDefaultSoundName
}
func toggleNotification() {
if notificationSwitch.on {
localNotification.fireDate = datePicker.date.fireDate
UIApplication.sharedApplication().scheduleLocalNotification(localNotification)
} else {
localNotification.fireDate = nil
UIApplication.sharedApplication().cancelLocalNotification(localNotification)
}
}
@IBAction func toggleSwitch(sender: UISwitch) {
toggleNotification()
}
@IBAction func dateChanged(sender: UIDatePicker) {
toggleNotification()
}
}

necesitarás esas extensiones:

extension NSDate {
var minute: Int {
return NSCalendar.currentCalendar().component(.Minute, fromDate: self)
}
var hour: Int {
return NSCalendar.currentCalendar().component(.Hour, fromDate: self)
}
var day: Int {
return NSCalendar.currentCalendar().component(.Day, fromDate: self)
}
var month: Int {
return NSCalendar.currentCalendar().component(.Month, fromDate: self)
}
var year: Int {
return NSCalendar.currentCalendar().component(.Year, fromDate: self)
}
var fireDate: NSDate {
let today = NSDate()
return NSCalendar.currentCalendar().dateWithEra(1,
year: today.year,
month: today.month,
day: { hour > today.hour || (hour == today.hour
&& minute > today.minute) ? today.day : today.day+1 }(),
hour: hour,
minute: minute,
second: 0,
nanosecond: 0
)!
}
}