Я использовал ниже расширение для даты:
extension Date {
static func today() -> Date {
return Date()
}
func next(_ weekday: Weekday, considerToday: Bool = false) -> Date {
return get(.Next,
weekday,
considerToday: considerToday)
}
func previous(_ weekday: Weekday, considerToday: Bool = false) -> Date {
return get(.Previous,
weekday,
considerToday: considerToday)
}
func get(_ direction: SearchDirection,
_ weekDay: Weekday,
considerToday consider: Bool = false) -> Date {
let dayName = weekDay.rawValue
let weekdaysName = getWeekDaysInEnglish().map { $0.lowercased() }
assert(weekdaysName.contains(dayName), "weekday symbol should be in form \(weekdaysName)")
let searchWeekdayIndex = weekdaysName.index(of: dayName)! + 1
let calendar = Calendar(identifier: .gregorian)
if consider && calendar.component(.weekday, from: self) == searchWeekdayIndex {
return self
}
var nextDateComponent = DateComponents()
nextDateComponent.weekday = searchWeekdayIndex
let date = calendar.nextDate(after: self,
matching: nextDateComponent,
matchingPolicy: .nextTime,
direction: direction.calendarSearchDirection)
return date!
}
}
Это можно использовать для получения любого следующего или предыдущего дня недели от контрольной даты. Сначала вам нужно получить следующий понедельник, а затем установить UNCalendarNotificationTrigger, как показано ниже:
var triggerDaily = Calendar.current.dateComponents([.year, .month, .day, .hour, .minute, .second], from: Date().next(Date.Weekday.monday, considerToday: true))
triggerDaily.hour = 19
triggerDaily.minute = 0
triggerDaily.second = 0
if #available(iOS 10.0, *) {
let trigger = UNCalendarNotificationTrigger(dateMatching: triggerDaily, repeats: true)
let content = UNMutableNotificationContent()
content.title = "Title"
content.body = "Body"
content.sound = UNNotificationSound.default()
content.categoryIdentifier = "Test"
let request = UNNotificationRequest(identifier: "NotificationAt-\(String(describing: Calendar.current.date(from: triggerDaily))))", content: content, trigger: trigger)
UNUserNotificationCenter.current().add(request) {(error) in
if let error = error {
print("Uh oh! We had an error: \(error)")
}else {
UNUserNotificationCenter.current().getPendingNotificationRequests(completionHandler: { (arrayRequests) in
for request in arrayRequests {
if let calendarNotificationTrigger = request.trigger as? UNCalendarNotificationTrigger,
let nextTriggerDate = calendarNotificationTrigger.nextTriggerDate() {
print("nextTriggerDate ===>>> \(nextTriggerDate)")
}
print("Request ===>>> \(String(describing: request.trigger))")
}
})
}
}
} else {
// Fallback on earlier versions
}
Вывод этого будет следующим:
nextTriggerDate === >>> 2018-07-02 13:30:00 + 0000
Запрос === >>> Необязательно (
Календарный год: 2018
Месяц: 7
День 2
Час: 19
Минута: 0
Второе: 0, повторяется: ДА>)