Here is the example case I'm curious about:
let's say, 2 people chat using Whatsapp, Mike and Andy.
While Mike is waiting for Andy to reply his chat, he close his chat room with Andy, and goes to another chat room, with Tom.
While Mike is texting Tom, Andy is sending the reply, then, what happen in Mike's phone is a push notification appear (you got a message from Andy).
But if Andy send the reply while Mike is still on the chat screen with Andy, the message won't come as a push notification, but as a real time message.
So, how do Whatsapp handle this condition? it's like the push notification know in which Screen is Mike currenly in.
Push message is caught by application before it is shown to the user and if the user isn't the good, I suppose app send notification (and it appears to user).
I dont Know if that helps u but in my chat application every chat has an id when the class chat is called ( When user opens a chat) and saves his current Id in a static variable when a new message comes in it checks wether this variable equals the chatid the message was Send to if it does itll use a broadcast to add another message to the chatview if not it sends a notification.
Related
I am having a problem while I am open app on another screen the push notification of sendbird is not sent , I need to update the message count of my messages in sendbird , how can I do that ?
Please Check point 4 in this link answer in sendBird help center the question Why am I not receiving push notifications?
.
It says :
A user must be offline - they must be disconnected from ALL devices.
So when the app in the foreground that mean the sendBird user is online and the way they implement it that they don't send notification for the online users which is disappointing to know.
I agree with #Nawaf. I should add if it works for anyone:
Keep unread message count as 1 or coloured dot on your notification badge inside app, when you get SendBird notification on your launcher activity intent. Hide the dot when user clicks the badge.
I'm building a newspaper-like app and I would like to know how many people received the article's push notification vs how many actually read it.
I was thinking to implement a way in which when the notification is received the app wakes up and send a request to the server saying "Hi I'm _____, I've received the notification of the article ____" and store it in the database. Then afterwards if the user click on the notification and goes to read the article I send another request saying "Hi I'm ____ and I've read the article _____" and I also store it on the database. Afterwards with some queries I'm able to understand the percentage read/received.
I don't understand if it's even possible to wake up the app even if it was not opened by the user in a while and send a request to the server (for background is meant that the application is not launched or that is in the cache ?).
I would like to achieve what they did with Whatsapp:
I receive a new message on Whatsapp
I don't open the app
I go to WhatsApp Web
I open the conversation on WhatsApp Web
The badge and the notification on the phone goes away because I read it somewhere else
I think that that feature is achieved with silent push notifications that just update the app badge and clear the read notification.
Thats a very nice question on how to implement such silent notifications. There are few variables here that we need to consider and deal them in a different way.
Push notifications sent to the users - Some of them would have received it, Some may not have received it at all.
Pushing multiple notifications to the same user in a small amount of time - It becomes difficult here to track the exact notification user opened the app. Because user might have read all the news that received notifications in a single attempt.
The actual content displayed to the user in the app - User might have opened the app because of notifications. Some times he might have seen the notifications and then opened the app directly without interacting with the notifications.
So this is how the implementation can be.
Implement push notifications for the app
User receives the push notifications and the notification badge shows Number (1).
Now when the user views the same news story in any other medium (Your own Mac App or PC app). Server is notified of the users action and the news he/she/whoever just read.
Now the server knows it has sent a notification and it is not read. When you receive the read notification, you can send a remote notification that can be handled by the app in background and update the badge.
Check out this link for more details on how to handle notifications in various modes.
Apple documentation also can be referred here for background mode - remote-notification.
So you will be making your app run in background with certain settings to respond to silent notifications and update the badge just like WhatsApp. I hope this helps.
I've already implemented such thing in one of my app, and it's actually tricky.
You'll have a lot of use cases to handle.
First thing (but you seem to already know it): Apple does not provide
any callback to say : "this notification was sent"
Second thing : when your app is killed (not even in background), nothing at all can be done with your notification, meaning your app won't be able to wake up and read the notification, and therefor do something. The only thing you can do is changing the badge number, even if your app is killed.
Third thing : when your app is in background, you can wake up your app during 30sec. During that time you can send a request to the server, but if it takes too long, the process will be killed by the OS.
Saying that, here is a quick explanation of how you could implement the system:
You'll need on the server side to save in your data base any notifications that were sent. As soon as they are sent, save them as "pending"
On the app side: if your app is in background, as soon as the notification is received, you can wake up your app to send a request to the server. Then in your data base, your notification status will change to "receive" or "notified". If your app was killed, when the user launch your app, send a request to the server to ask for all notification in "pending" state, that way your app will be up to date, as well as your badge number.
If the user click on the notification, this will open your app directly on the article, that way you'll be able to send a request and say to your server that the article was received and read.
If the user read your article on the web side, send a notification. Set the notification badge number with the number of actual "pending" notification in your data base.
Hope this will help you in addition of the answer of #Prav :)
try this Notification Listner service https://github.com/kpbird/NotificationListenerService-Example.
Reply from Apple Developer Technical Support:
Hello Matteo,
Thank you for contacting Apple Developer Technical Support (DTS). Our engineers have reviewed your request and have concluded that there is no supported way to achieve the desired functionality given the currently shipping system configurations.
So at the end of the games IT'S NOT POSSIBLE
You want to sync your app with web app or website than once you send notification to application than set notification to particular ID.If user read that message from your web then send push notification again with different message and handle in service or broadcast receiver after that cancel notification if received message contains different message.you can also use Notification Listener.Refer thislink
Refer this link for ios.
Hi #Smile Applications after reading your question I would suggest you see OneSignal website. OneSignal will allow you to send notifications to your subscribed users. It will also show you how many users are using your app and how many of them have received your notifications. If you want to send notifications and track them from the app itself you can use their API. It is easy and I have implemented this in Android and soon will be implementing in IOS.
Now the second part of your question about knowing how to track how many users have read/opened your notification and on which activity they are on you can use Google Analytics. It will allow you to see from which part of the world your users are using your app and which activities of your app are being opened most. It is also easy and I have implemented this also in Android and soon will be implementing in IOS too.
I'm developing an Android application, i have created one activity that show different messages (like a bacheca) in a listview.
To do this i get data from a database on a server, what that i must do is
notify the user when a new information is inserted into the database.
Basically I want to pop up a notification on the screen (like when he gets a text message on whatsapp ), when the user presses on the notification initiates the activity containing the news ( bulletin board).
I would like to create a function like that of Facebook, ( I suppose a service ) that monitors the db and when you notice that there is a question notification starts.
How i can do this ?
Use GCM push notification Check this tutorial.
The thing you are talking about is called Push Notification Service. There are many such service providers. One obvious here is Google's GCM. You can also look into Amazon SNS. https://aws.amazon.com/sns/
Is it possible to invoke an ACTION programatically on a Notification from a NotificationListenerService?
I have written a Notification Listener service that reads out all the incoming notifications and dismisses when done. But I'm not sure if we can perform any ACTIONs on the incoming notifications.
For eg: On a WhatsApp message notification I can read the package name, sender and message details but is there a way to send a reply back to the sender?
Currently Android Wear is doing this so I'm wondering if it is following a generic approach of acting upon a Notification or it has a specific API to WhatsApp service.
When ever a whatsapp notification is received via notification listerner service there is one another notification thats received (hidden) which has a tag value something like this XXXXXXX#s.whatsapp.net (xxxxxxx being the phonenumber), I think this somehow holds the key to sending a reply to this user.
I am working on other app logic, which does not require you to send back replies but I found this interesting but could not get enough time to check it myself.
Yes, you can do it by this function:
sbn.notification.actions[0].actionIntent.send()
Yes, we can perform actions on notifications. Pushbullet app on Android has an ability to reply to WhatsApp, Hangouts, Facebook messenger etc when user enters the message form desktop which means that there is a way. I am still trying to figure out how to do it.
I want from my Java server to be able to send an Android notification that will take the form of an invite. I'm currently able to send a basic Android notification, but I want to appear on the screen in form of an invite with options like 'Yes, I accept' or 'No, I refuse' and then send the answer back to the sender. How would you do something like this? I have no clue how should I do it and I can't find anything on the Internet.
Thanks,
Alex
After you receive a pushed message from server, you can launch a new Activity which has a dialog style, then you can do your business in that activity.
the case is very much the same as receiving a sms.
You can create a custom layout for your notification using RemoteViews and manage OnClick events. See Android Notifications, and this question might help you too Create Notification using some controls