隐藏某些传入通知 - OneSignal

Question

我正在开发一个聊天应用程序，使用 xCode、Swift、Firestore 和 OneSignal 进行通知。一切都已设置好，我正在相应地接收通知，但我想根据某些条件过滤（隐藏、显示）一些通知。例如，如果用户当前正在与该人聊天，我不希望向用户显示关于 "new message" 的推送通知，因为他们已经在当前聊天视图中看到了该消息。有什么方法可以用 OneSignal 实现吗？

Answer 1

您可以这样更改 appDelegate：

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

let notificationReceivedBlock: OSHandleNotificationReceivedBlock = { notification in

  print("Received Notification: \(notification!.payload.notificationID)")
  NotificationCenter.default.post(name: "ReceivedNotification", object: self, userInfo: notification!.payload) // post notification to view controller
}

let notificationOpenedBlock: OSHandleNotificationActionBlock = { result in
  // This block gets called when the user reacts to a notification received

}

let onesignalInitSettings = [kOSSettingsKeyAutoPrompt: false,
  kOSSettingsKeyInAppLaunchURL: true]

OneSignal.initWithLaunchOptions(launchOptions, 
  appId: "YOUR_ONESIGNAL_APP_ID", 
  handleNotificationReceived: notificationReceivedBlock, 
  handleNotificationAction: notificationOpenedBlock, 
  settings: onesignalInitSettings)

OneSignal.inFocusDisplayType = OSNotificationDisplayType.none //Notification is silent and not shown

return true
}

还有你的聊天室视图控制器：

override func viewWillAppear(_ animated: Bool) {
       super.viewWillAppear(animated)
       NotificationCenter.default.addObserver(self,
       selector: #selector(receivedNotification(_:)),
       name: "ReceivedNotification", object: nil)
   }
override func viewWillDisappear(_ animated: Bool) {
    NotificationCenter.default.removeObserver(self, name: "ReceivedNotification", object: nil)
}

@objc func receivedNotification(_ notification: Notification) {
    let notificationPayload =  notification.userInfo
    //check the message belongs to this room then if you want show your local notification , if you want do nothing 
}

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