我有一个iOS应用，其中包含（每日）重复的本地通知，当some条件满足时会触发新的本地通知。必须在应用中显示的本地通知（带横幅）和notifications view内的通知。我已经在AppDelegate中大致实现了它作为概念证明并且有效（tm）。
从横幅广告块中的onetime notifications view cancelLocalNotification移除UIApplication.sharedApplication().cancelLocalNotification(<the one time notification>)本地通知。但令人惊讶的是，在发射...
import JCNotificationBannerPresenter
...
class AppDelegate: UIResponder, UIApplicationDelegate {
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Setup local notifications support
let notificationType: UIUserNotificationType
= [UIUserNotificationType.Alert, UIUserNotificationType.Badge, UIUserNotificationType.Sound]
let settings = UIUserNotificationSettings(forTypes: notificationType,
categories: nil)
application.registerUserNotificationSettings(settings)
// Clean up and reset
application.applicationIconBadgeNumber = 0
application.cancelAllLocalNotifications()
NSLog("Setup one repeating notification")
let n = UILocalNotification()
n.fireDate = NSDate(timeIntervalSinceNow: 15)
n.soundName = UILocalNotificationDefaultSoundName
n.timeZone = NSTimeZone.defaultTimeZone()
n.applicationIconBadgeNumber = 0
n.userInfo = ["id": "dailyreminder"]
n.repeatInterval = NSCalendarUnit.Day
UIApplication.sharedApplication().scheduleLocalNotification(n)
return true
}
...
func application(application: UIApplication,
didReceiveLocalNotification notification: UILocalNotification) {
NSLog("application(... didReceiveLocalNotification/////////////////////////")
NSLog(notification.description)
let state = application.applicationState
if let userInfo = notification.userInfo,
let id = userInfo["id"] as? String
where id != "dailyreminder" {
switch state {
case UIApplicationState.Active:
NSLog(String(format: "%@ > UIApplicationState.Active", id))
JCNotificationCenter.enqueueNotificationWithTitle(
notification.alertTitle,
message: notification.alertBody,
tapHandler: { () -> Void in
NSLog("Banner click ///////////////////////////////////////////////")
// 1. Go to somewhere in the app
// 2. Cancel the notification from the `notifications view`
UIApplication.sharedApplication().cancelLocalNotification(notification)
// `cancel` results in an additional call up of the "dailyreminder" ~ why?
})
case UIApplicationState.Inactive:
NSLog(String(format: "%@ > UIApplicationState.Inactive", id))
// This is called up when user selects the notification within the `notifications view`
// and canceled by user touch.
default:
let desc = state.rawValue.description
NSLog(String(format: "%@ > Unexpected app state: %@", id, desc))
}
}
if let userInfo = notification.userInfo,
let id = userInfo["id"] as? String
where id == "dailyreminder" {
NSLog("Repeating daily reminder was called ~ lets fire a noti to show the user")
// Some condition checks that need to be true before firing the local notification
if true {
let n = UILocalNotification()
n.fireDate = nil
n.timeZone = NSTimeZone.defaultTimeZone()
n.applicationIconBadgeNumber = ++UIApplication.sharedApplication().applicationIconBadgeNumber
n.userInfo = [
"id": "onetimenotification"
]
n.alertTitle = "One time notification title"
n.alertBody = "One time notification body"
UIApplication.sharedApplication().scheduleLocalNotification(n)
}
}
}
...
时会重新触发重复的本地通知 - 为什么？我该如何防止这种情况？
case UIApplicationState.Active:
NSLog(String(format: "%@ > UIApplicationState.Active", id))
UIApplication.sharedApplication().cancelLocalNotification(notification)
我在github上提供了完整的示例。
好的我给了它另一个拍摄。在块外面取消通知有效（但不适合该场景）：
JCNotificationBannerPresenter我也想消除case UIApplicationState.Active:
NSLog(String(format: "%@ > UIApplicationState.Active", id))
let alertController = UIAlertController(
title: "Daily reminder title",
message: "Daily reminder description.",
preferredStyle: .Alert)
let cancelAction = UIAlertAction(title: "Cancel", style: .Cancel) { _ in
NSLog("Do nothing ////////////////////// ")
}
alertController.addAction(cancelAction)
let OKAction = UIAlertAction(title: "OK", style: .Default) { (action) in
NSLog("OK was pressed ////////////// ")
UIApplication.sharedApplication().cancelLocalNotification(notification)
}
alertController.addAction(OKAction)
self.window!.makeKeyAndVisible()
let v = self.window!.rootViewController!
v.presentViewController(alertController,
animated: true,
completion: {})
导致奇怪的行为，所以我尝试了新的ios altertController：
UIApplication.sharedApplication().cancelLocalNotification(notification)遗憾的是，它重现了这种奇怪的行为，所以它的味道就像块与{{1}}的组合......
答案 0 :(得分：0)
您尚未在didReceiveLocalNotification方法中取消重复通知，即每日提醒通知。您已取消通知where id != "dailyreminder"，而您重复通知的时间为id == "dailyreminder"。在didReceiveLocalNotification