Question

我是iOS开发的新手，但已经创建了应用程序，我正在尝试创建一段时间的每日通知。目前，通知对于给定的日期/时间执行一次。我不确定如何使用repeatInterval方法每天安排它。每天重复通知的最佳方法是什么？任何帮助将非常感谢（Y）。

    var dateComp:NSDateComponents = NSDateComponents()
    dateComp.year = 2015;
    dateComp.month = 06;
    dateComp.day = 03;
    dateComp.hour = 12;
    dateComp.minute = 55;
    dateComp.timeZone = NSTimeZone.systemTimeZone()

    var calender:NSCalendar = NSCalendar(calendarIdentifier: NSCalendarIdentifierGregorian)!
    var date:NSDate = calender.dateFromComponents(dateComp)!

    var notification:UILocalNotification = UILocalNotification()
    notification.category = "Daily Quote"
    notification.alertBody = quoteBook.randomQuote()
    notification.fireDate = date
    notification.repeatInterval = 

    UIApplication.sharedApplication().scheduleLocalNotification(notification)

Answer 1

您必须提供NSCalendarUnit值，例如“HourCalendarUnit”或“DayCalendarUnit”，以便重复通知。

只需添加此代码即可每天重复本地通知：

notification.repeatInterval = NSCalendarUnit.CalendarUnitDay

Answer 2

所以，不得不修改@ vizllx上面的代码。这是新行：

notification.repeatInterval = NSCalendarUnit.Day

以下是我使用的完整工作示例：

let notification = UILocalNotification()

  /* Time and timezone settings */
  notification.fireDate = NSDate(timeIntervalSinceNow: 8.0)
  notification.repeatInterval = NSCalendarUnit.Day
  notification.timeZone = NSCalendar.currentCalendar().timeZone
  notification.alertBody = "A new item is downloaded."

  /* Action settings */
  notification.hasAction = true
  notification.alertAction = "View"

  /* Badge settings */
  notification.applicationIconBadgeNumber =
  UIApplication.sharedApplication().applicationIconBadgeNumber + 1
  /* Additional information, user info */
  notification.userInfo = [
    "Key 1" : "Value 1",
    "Key 2" : "Value 2"
  ]

  /* Schedule the notification */
  UIApplication.sharedApplication().scheduleLocalNotification(notification)
}

Answer 3

var repeatInterval: NSCalendarUnit

=＆GT;文档说＆＃34;重新安排通知的日历间隔。＆＃34;

所以：使用NSCalendarUnit.CalendarUnitDay

Answer 4

其他答案显示了如何使用旧的iOS 10之前的本地通知。在iOS 10及更高版本中，您必须按以下方式使用UNNotificationCenter：

    let content = UNMutableNotificationContent()
    content.title = "This will appear in bold, on it's own line."
    content.subtitle = "This will appear in bold, on it's own line, below the title."
    content.body = "This will appear as normal text, below the title and subtitle."

    let triggerInputForHourlyRepeat = Calendar.current.dateComponents([.minute], from: intendedFireDateVariable)
    let trigger = UNCalendarNotificationTrigger.init(dateMatching: triggerInput, repeats: true)

    let request = UNNotificationRequest(identifier: "someUniqueID", content: content, trigger: trigger)
    let unc = UNUserNotificationCenter.current()
    unc.add(request, withCompletionHandler: { (error) in
        /// Handle error
    })

有用的教程：

使用swift在设定的时间每天重复本地通知

4 个答案: