重复本周特定日期的本地通知(Swift 3 IOS 10)

发布时间：2020-12-14 05:27:26 所属栏目：百科来源：网络整理

导读：我正在尝试为一周中的特定日期(例如星期一,星期三等)安排本地通知,然后每周重复一次. 这是用于设置通知的屏幕的外观：用户可以选择通知时间和重复日期. 我调度单个非重复通知的方法如下所示： static func scheduleNotification(reminder: Reminder) { // S

我正在尝试为一周中的特定日期(例如星期一,星期三等)安排本地通知,然后每周重复一次.
这是用于设置通知的屏幕的外观：

用户可以选择通知时间和重复日期.

我调度单个非重复通知的方法如下所示：

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)
        }
    }
}

日期组件从UIDatePicker小部件中提取并存储在提醒类中：

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](作为提醒类的属性)来保存通知应该触发的星期几的信息.

如何在一周中的特定日期安排通知以及如何每周重复一次？

即使是一条评论也会有所帮助,并提前感谢您.

您可以使用以下函数从所选的选择器值中获取日期：

//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,.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",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)")
            }
        }
    }

从选择器传递选择器小时,分钟和年份中获取值,选定的工作日为(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) createDate(工作日：Int,小时：Int,分钟：Int,年份：Int)在每周基础上获取通知开火日期,并在获取日期调用函数func scheduleNotification(日期：日期,正文：字符串,标题：字符串)之后安排通知.

（编辑：李大同）

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