在一周的特定日期重复本地通知(Swift 3 IOS 10) [英] Repeating local notifications for specific days of week (Swift 3 IOS 10)
问题描述
我正在尝试安排一周中特定日期(例如星期一,星期三等)的本地通知,然后每周重复一次. 这是用于设置通知的屏幕的外观:
I am trying to schedule local notifications for specific days of week (e.g. Monday, Wednesday and etc) and then repeat them weekly. This is how the screen for setting notifications looks:
用户可以选择通知时间和重复天数.
User can select time for the notification and repeating days.
我安排单个非重复通知的方法如下:
My method for scheduling single non repeating notification looks like this:
static func scheduleNotification(reminder: Reminder) {
// Setup notification content.
let content = UNMutableNotificationContent()
//content.title = NSString.localizedUserNotificationString(forKey: "Reminder", arguments: nil)
content.body = NSString.localizedUserNotificationString(forKey: reminder.reminderMessage, arguments: nil)
content.sound = UNNotificationSound.default()
// Configure the triger for specified time.
//
let dateComponentes = reminder.dateComponents
// TODO: Configure repeating alarm
// For the testing purposes we will not repeat the reminder
let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponentes, repeats: false)
// Create the request object.
let request = UNNotificationRequest(identifier: "\(reminder.reminderId)", content: content, trigger: trigger)
// Schedule the request.
let notificationCenter = UNUserNotificationCenter.current()
notificationCenter.add(request) { (error: Error?) in
if let theError = error {
print(theError.localizedDescription)
}
}
}
从UIDatePicker小部件中提取日期成分,并将其存储在提醒类中:
The date components are extracted from UIDatePicker widget and stored in reminder class:
let date = reminderTimeDatePicker.date.addingTimeInterval(60 * 60 * 24 * 7)
let components = Calendar.current.dateComponents([.weekday, .hour, .minute], from: date)
...
reminder.dateComponents = components
我有一个数组selectedDays[Int]
(作为提醒类的一个属性),用于保存应该在一周中的几天触发通知的信息.
I have an array selectedDays[Int]
(as a property of reminder class) to hold info on days of week on which the notification should fire.
我如何安排在一周的特定日期进行通知,以及如何每周重复一次?
How can I schedule notification on specific day of week and how to repeat it weekly?
即使发表任何评论也将有所帮助,并在此先感谢您.
Even a single comment will be helpful, and thank you in advance.
推荐答案
您可以使用以下函数从选定的选择器值中获取日期:
You can use below function to get Date from selected picker value:
//Create Date from picker selected value.
func createDate(weekday: Int, hour: Int, minute: Int, year: Int)->Date{
var components = DateComponents()
components.hour = hour
components.minute = minute
components.year = year
components.weekday = weekday // sunday = 1 ... saturday = 7
components.weekdayOrdinal = 10
components.timeZone = .current
let calendar = Calendar(identifier: .gregorian)
return calendar.date(from: components)!
}
//Schedule Notification with weekly bases.
func scheduleNotification(at date: Date, body: String, titles:String) {
let triggerWeekly = Calendar.current.dateComponents([.weekday,.hour,.minute,.second,], from: date)
let trigger = UNCalendarNotificationTrigger(dateMatching: triggerWeekly, repeats: true)
let content = UNMutableNotificationContent()
content.title = titles
content.body = body
content.sound = UNNotificationSound.default()
content.categoryIdentifier = "todoList"
let request = UNNotificationRequest(identifier: "textNotification", content: content, trigger: trigger)
UNUserNotificationCenter.current().delegate = self
//UNUserNotificationCenter.current().removeAllPendingNotificationRequests()
UNUserNotificationCenter.current().add(request) {(error) in
if let error = error {
print("Uh oh! We had an error: \(error)")
}
}
}
从选择器通行证选择器的小时,分钟和年份中获取一个值,并将选定的工作日设为(星期日= 1,星期一= 2,星期二= 3,星期三= 4,星期四= 5,星期五= 6,星期六= 7)可以使用功能func createDate(weekday: Int, hour: Int, minute: Int, year: Int)
来获取每周的通知开始日期,并在获取日期后调用功能func scheduleNotification(at date: Date, body: String, titles:String)
来安排通知.
After getting a value from picker pass picker hour, minute and year with selected week day as (Sunday = 1, Monday = 2, Tuesday = 3, Wednesday = 4, thursday = 5, Friday = 6, Saturday = 7) to function func createDate(weekday: Int, hour: Int, minute: Int, year: Int)
to get notification fire date on weekly bases, and after getting date call function func scheduleNotification(at date: Date, body: String, titles:String)
for schedule a notification.
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