Swift iOS 9.2 中的每日本地通知

Question

正在尝试在 swift 中发送每日本地通知。然而，由于某种原因它只是每分钟发送一次。我希望应用程序打开后 30 分钟发送第一个通知，然后每天重复此通知。

在 swift 文件中，我有以下代码：

//--------每日通知代码（同时在app delagate中添加部分-------- 让 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---------------

在我的应用程序委托文件中，我有以下代码：

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-----------
}

Answer 1

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

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：

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

Swift iOS 9.2 中的每日本地通知

Daily Local Notification In Swift iOS 9.2

ios

swift

uilocalnotification

ios9.2