Parse.com chek push notification before showing - swift

Question

How to check push notification before showing?
I want check data and if incorrect data I don't want show notification
my code:
I just use simple Parse.com example. This is my AppDelegate class
let defaults = NSUserDefaults.standardUserDefaults()
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
Parse.setApplicationId("//",
clientKey: "//")
if application.applicationState != UIApplicationState.Background {
let preBackgroundPush = !application.respondsToSelector("backgroundRefreshStatus")
let oldPushHandlerOnly = !self.respondsToSelector("application:didReceiveRemoteNotification:fetchCompletionHandler:")
var pushPayload = false
if let options = launchOptions {
pushPayload = options[UIApplicationLaunchOptionsRemoteNotificationKey] != nil
}
if (preBackgroundPush || oldPushHandlerOnly || pushPayload) {
PFAnalytics.trackAppOpenedWithLaunchOptions(launchOptions)
}
}
var notificationActionAccept :UIMutableUserNotificationAction = UIMutableUserNotificationAction()
notificationActionAccept.identifier = "FIRST_ACTION"
notificationActionAccept.title = "Įvertinti"
var notificationCategory:UIMutableUserNotificationCategory = UIMutableUserNotificationCategory()
notificationCategory.identifier = "CallNotificationCategory"
notificationCategory .setActions([notificationActionAccept], forContext: UIUserNotificationActionContext.Default)
let settings = UIUserNotificationSettings(forTypes: [.Alert, .Sound, .Badge], categories: NSSet(array:[notificationCategory]) as! Set<UIUserNotificationCategory>)
UIApplication.sharedApplication().registerUserNotificationSettings(settings)
UIApplication.sharedApplication().registerForRemoteNotifications()
if let launchOptions = launchOptions as? [String : AnyObject] {
if let notificationDictionary = launchOptions[UIApplicationLaunchOptionsRemoteNotificationKey] as? [NSObject : AnyObject] {
self.application(application, didReceiveRemoteNotification: notificationDictionary)
}
}
return
}
func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool
{
return
}
func applicationWillResignActive(application: UIApplication) {
}
func applicationDidEnterBackground(application: UIApplication) {
}
func applicationWillEnterForeground(application: UIApplication) {
}
func applicationDidBecomeActive(application: UIApplication) {
}
func applicationWillTerminate(application: UIApplication) {
}
func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
let installation = PFInstallation.currentInstallation()
installation.setDeviceTokenFromData(deviceToken)
installation.saveInBackground()
}
func application(application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: NSError) {
if error.code == 3010 {
print("Push notifications are not supported in the iOS Simulator.")
} else {
print("application:didFailToRegisterForRemoteNotificationsWithError: %#", error)
}
}
func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {
print(userInfo)
PFPush.handlePush(userInfo)
if application.applicationState == UIApplicationState.Inactive {
PFAnalytics.trackAppOpenedWithRemoteNotificationPayload(userInfo)
}
}
}
I Realy need help:/

Answer 1

No, unfortunately you can not stop notification from showing when your app is in background.
application:didReceiveRemoteNotification: is just a delegate method, which is invoked upon notification showing, it can not control if notification should be shown or not.