Question

我正在处理应用程序的本地通知，该应用程序应该仅在特定日期触发并在该日重复，直到用户决定将其删除。每周三上午11:00发出一个示例通知。

当用户在时间选择器上按下完成时，将触发函数 - scheduleLocalNotification。

    var sundayNotification : UILocalNotification!
    var mondayNotification : UILocalNotification!
    var tuesdayNotification : UILocalNotification!
    var wednesdayNotification : UILocalNotification!
    var thursdayNotification : UILocalNotification!
    var fridayNotification : UILocalNotification!
    var saturdayNotification : UILocalNotification!


func scheduleLocalNotification() {

        //Check the Dayname and match fireDate
        if dayName == "Sunday" {

            sundayNotification = UILocalNotification()

            //timeSelected comes from the timePicker i.e. timeSelected = timePicker.date
            sundayNotification.fireDate = fixNotificationDate(timeSelected)
            sundayNotification.alertTitle = "Sunday's Workout"
            sundayNotification.alertBody = "This is the message from Sunday's workout"
            sundayNotification.alertAction = "Snooze"
            sundayNotification.category = "workoutReminderID"
            let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
            appDelegate.saveContext()
            UIApplication.sharedApplication().scheduleLocalNotification(sundayNotification)


        } else if dayName == "Monday" {

            mondayNotification = UILocalNotification()
            mondayNotification.fireDate = fixNotificationDate(timeSelected)
            mondayNotification.alertTitle = "Monday's Workout"
            mondayNotification.alertBody = "This is the message from Monday's workout"
            mondayNotification.alertAction = "Snooze"
            mondayNotification.category = "workoutReminderID"
            let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
            appDelegate.saveContext()
            UIApplication.sharedApplication().scheduleLocalNotification(mondayNotification)

        } else if ..... }

}


func fixNotificationDate(dateToFix: NSDate) -> NSDate {


        let dateComponets: NSDateComponents = NSCalendar.currentCalendar().components([NSCalendarUnit.Hour, NSCalendarUnit.Minute], fromDate: dateToFix)

        dateComponets.second = 0

        if dayName == "Sunday" {

            dateComponets.weekday = 1 //n = 7

        } else if dayName == "Monday" {

            dateComponets.weekday = 2

        } else if dayName == "Tuesday" {

            dateComponets.weekday = 3

        } else if dayName == "Wednesday" {

            dateComponets.weekday = 4

        } else if dayName == "Thursday" {

            dateComponets.weekday = 5

        } else if dayName == "Friday" {

            dateComponets.weekday = 6

        } else if dayName == "Saturday" {

            dateComponets.weekday = 7

        }


        let fixedDate: NSDate! = NSCalendar.currentCalendar().dateFromComponents(dateComponets)

        return fixedDate
    }

在检查了通知时指定正确的UILocalNotification之后，这仍然奇怪地不起作用，例如在不同的日子（周日上午10:10和周一上午10:15）设置不同的时间通知不会改变任何事情。在我没有选择的那天，通知仍然会触发，即在这两个时间而不是那些日子的今天。

我可能做错了什么或丢失的任何线索？提前致谢。：）

Answer 1

经过一番努力，我想出了这个。我们首先将日期更改为用户选择的第一个开火日期。

func setNotificationDay(today: NSDate, selectedDay: Int) -> NSDate {
    let daysToAdd: Int!
    let calendar = NSCalendar.currentCalendar()
    let weekday = calendar.component(.Weekday, fromDate: today)

    if weekday > selectedDay {
        daysToAdd = (7 - weekday) + selectedDay
    } else {
        daysToAdd = (selectedDay - weekday)
    }

    let newDate = calendar.dateByAddingUnit(.Weekday, value: daysToAdd, toDate: today, options: [])

    return newDate! //if you don't have a date it'll crash
}

您可以使用NSDate()而不是将其作为参数。我会把它留给你。

现在，我们需要设置通知。我没有对您的fixNotificationDate()做任何事情，但您可以轻松添加它。这里的关键点是设置notification.repeatInterval = .Weekday或不会重复。我还添加了一个字典来设置日期名称。这比重复代码要好得多。

它会创建对NSCalendar的第二次调用，但您可能会找到一种方法来避免在代码中执行此操作。

func scheduleLocalNotification(date: NSDate) {
    let dayDic = [1:"Sunday",
        2:"Monday",
        3:"Tuesday",
        4:"Wednesday",
        5:"Thursday",
        6:"Friday",
        7:"Saturday"]

    let calendar = NSCalendar.currentCalendar()
    let weekday = calendar.component(.Weekday, fromDate: date)

    let notification = UILocalNotification()
    notification.fireDate = date
    notification.repeatInterval = .Weekday
    notification.alertTitle = String(format: "%@'s Workout", dayDic[weekday]!)
    notification.alertBody = String(format: "This is the message from %@'s workout", dayDic[weekday]!)
    notification.alertAction = "Snooze"
    notification.category = "workoutReminderID"
    notification.soundName = UILocalNotificationDefaultSoundName
    UIApplication.sharedApplication().scheduleLocalNotification(notification)
}

那应该可以解决你的问题。我没有测试它，因为它需要至少一个星期！ ;）

希望有所帮助！

制作仅在特定日期重复的本地通知

1 个答案: