Swift iOS 9.2中的每日本地通知 [英] Daily Local Notification In Swift iOS 9.2

问题描述

尝试在swift中发送每日本地通知。然而它只是出于某种原因发送每分钟。我希望第一个通知在应用程序打开后发送30分钟，然后每天重复此通知。

Trying to send a daily local notification in swift. However it just sends every minute for some reason. I want the first notification to send 30 mins after the app is opened and then repeat this notification everyday.

在swift fie我有以下代码：

in the swift fie i have the following code:

// ---------每日通知代码（也在app delagate中添加部分----------
让theDate = NSDate （）

//---------Daily notification code (also add section in app delagate---------- let theDate = NSDate()

    let dateComp = NSDateComponents()
    dateComp.minute = 30

    let cal = NSCalendar.currentCalendar()

    let fireDate:NSDate = cal.dateByAddingComponents(dateComp , toDate: theDate, options: NSCalendarOptions(rawValue: 0))!


    let notification:UILocalNotification = UILocalNotification()

    //choosing what it says in the notification and when it fires
    notification.alertBody = "Your Daily Motivation is Awaits"

    notification.fireDate = fireDate


    UIApplication.sharedApplication().scheduleLocalNotification(notification)

    //displaying notification every day
    notification.repeatInterval = NSCalendarUnit.Day



    //-------------end of daily notification code---------------

在我的app委托文件中具有以下代码：

in my app delegate file i have the following code:

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

    //----------daily notification section ----------
    let notiftypes:UIUserNotificationType = UIUserNotificationType.Alert.union(UIUserNotificationType.Badge).union(UIUserNotificationType.Sound)

    let notifSettings:UIUserNotificationSettings = UIUserNotificationSettings(forTypes: notiftypes, categories: nil)

    UIApplication.sharedApplication().registerUserNotificationSettings(notifSettings)

    return true
    //----------end of daily notification section-----------
}

推荐答案

问题是您在安排后设置重复间隔通知。只需在scheduleLocalNotification之前设置通知属性，并确保只安排一次：

The problem is that you are setting the repeat interval after scheduling the notification. Just set the notification property before scheduleLocalNotification and make sure you schedule it only once:

let notification = UILocalNotification()
notification.alertBody = "Your Daily Motivation is Awaits"
// You should set also the notification time zone otherwise the fire date is interpreted as an absolute GMT time
notification.timeZone = NSTimeZone.localTimeZone()
// you can simplify setting your fire date using dateByAddingTimeInterval
notification.fireDate = NSDate().dateByAddingTimeInterval(1800) 
// set the notification property before scheduleLocalNotification
notification.repeatInterval = .Day
UIApplication.sharedApplication().scheduleLocalNotification(notification)

注意：UIUserNotificationType是OptionSetType结构，所以你也可以简化它的声明：

Note: UIUserNotificationType are OptionSetType structures, so you can simplify its declaration also:

let notiftypes:UIUserNotificationType = [.Alert, .Badge, .Sound]

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