UILocalNotification无法正常工作

Question

这是我的代码.我必须为localNotification添加任何内容.有什么建议.提前致谢.我阅读了很多本地通知教程.我不知道错过了什么.

var localNotifications : UILocalNotification!

    func application(application: UIApplication!, didFinishLaunchingWithOptions launchOptions: NSDictionary!) -> Bool {

        localNotifications  = UILocalNotification()
        localNotifications.fireDate = NSDate(timeIntervalSinceNow: 20)
        localNotifications.timeZone = NSTimeZone.defaultTimeZone()
        localNotifications.alertBody = "Check it out!"
        localNotifications.soundName = UILocalNotificationDefaultSoundName
        localNotifications.applicationIconBadgeNumber = UIApplication.sharedApplication().applicationIconBadgeNumber + 1
        UIApplication.sharedApplication().scheduleLocalNotification(localNotifications)

}

 func application(application: UIApplication, didReceiveLocalNotification notification: UILocalNotification) {

        println("Alvin Notification recieved")

        if application.applicationState == UIApplicationState.Active
        {
            // show alertView

            Utilities.sharedInstance.alertThis("Hello", message: "Hey")
        }
        else if application.applicationState == UIApplicationState.Background
        {
            UIApplication.sharedApplication().presentLocalNotificationNow(localNotifications)
        }
        else if application.applicationState == UIApplicationState.Inactive
        {
            UIApplication.sharedApplication().presentLocalNotificationNow(localNotifications)
        }

        application.applicationIconBadgeNumber = 0
    }

Answer 1

从本地和远程通知编程指南:

在iOS 8及更高版本中,使用本地或远程通知的应用程序必须注册他们打算提供的通知类型.然后,系统使用户能够限制应用程序显示的通知类型.如果未对您的应用启用任何这些通知类型,系统不会标记图标,显示警报消息或播放警报声音,即使它们已在通知有效负载中指定.

如本指南所示,Apple显示的示例代码为:

    UIUserNotificationType types = UIUserNotificationTypeBadge |
             UIUserNotificationTypeSound | UIUserNotificationTypeAlert;

UIUserNotificationSettings *mySettings =
            [UIUserNotificationSettings settingsForTypes:types categories:nil];

[[UIApplication sharedApplication] registerUserNotificationSettings:mySettings];