Is it possible to create an app that can send notification to the user who does not have the same app installed on his device.
I have come acrossed 'Push Notification' service via GCM and FCM but it requires the app being installed on both the devices to communicate or send notification.
(P.S- No suggestion for web application to user mobile service)
You can use other means of communication like SMS or email.
No. Notifications even though coming from Android Google servers are part of the app environment. So you cannot send an app notification to non app users. If that was the case imagine getting app notifications from Amazon and whatnot.
But you can use some other means like mail, sending links of your app via mail/sending invites via mail or SMS.
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Sir, we are developing an app like delivery app I want know some few doubts in this
How the owner sends an automatic notification to the user?
How the sender and receiver gets request ( like fb or flipkart order request)?
And how the owner accepts and rejects the request?
You can use Google's FirebaseCloudMessaging for this purpose.
Basically you have to set up a server between your users and firebaseCloudMessaging, that will manage communication among them and finally messages would be send to devices using FCM via push.
I am developing a small chat application using node.js for iOS and Android, Now my question is that one user created a account and logged-in using this application from iOS or Android, then the user deleted this application without log-out. How the server knows this device has deleted the application without log-out?. Since, while user again installing this application, the push notification is still arriving without the user log-in.
Apple has a feedback service to give you information about failed remote notifications. Basically you listen the messages from feedback.push.apple.com and you flag the devices returned from feedback service. So no further push notifications will be delivered to that device. When user installs your app again you can remove the flag and start delivering the notifications.
For the android part check this question; Is there an Android GCM equivalent to the iOS Push Notification Feedback Service?
Can anyone help me with a way to send requests as a notification through my android app to all the users who have installed my application and then their responses are sent back to the user who sent the request.
I have read about GCM but I dont understand how can I register all the users to get their GCM registration ID and how can i simulataneously send a notification to all users..I may sound naive but I am completely new to this GCM concept and I dont think that it is the exact thing what I am looking for..
So,somebody please tell me how to send notifications(simultaneously on click of a button or something..) to all the users who have registered in my android app .
You will need to build a server component that keeps track of all registered users. This component will be an app that you write and expose in the cloud. There are many app-hosting services to choose from. Amazon EC2 is one example.
So the app flow would be something like this:
User launches your Android app.
Android app registers itself with GMC. GCM will respond with a token that represents that device.
Android app POSTs that device token to your cloud application.
Cloud application saves that token. The app should now have a list of tokens that represents all active devices running your app. (of course you may want to have an expiration policy - i.e. remove all tokens corresponding to devices you have not heard from in say 30 days).
One of your app users posts a message that s/he wants to broadcast.
Your Android app responds by sending a request to your cloud application.
Your cloud application responds to this request, by making a request to GCM. In this request (or series of requests), the app will include all device tokens and the user-entered message.
GCM responds by pushing the message to all devices with your app (i.e. all of those that have register with GCM and received a token - see step 2).
If using GCM alone you would need to write a server component. I get the impression you don't want to do this. You could use Urban Airship push messaging, which will allow you to send out a message to all registered apps from the Urban Airship web portal. Urban Airship integrates with GCM (which is easy to setup). You would still need to add code to your app to handle the push notification the app receives.
http://docs.urbanairship.com/build/android.html
I run Push Notification Sample code on Worklight server and its working.
Now i want to send notification from one device to another device so what are the required changes in the adapter?
The adapter XML:
<displayName>PushAdapter</displayName>
<description>PushAdapter</description>
<connectivity>
<connectionPolicy xsi:type="http:HTTPConnectionPolicyType">
<protocol>http</protocol>
<domain>https://android.apis.google.com</domain>
<port>8080</port>
</connectionPolicy>
<loadConstraints maxConcurrentConnectionsPerNode="2"/>
</connectivity>
Should i change domain and port and i have to upload the app first on google play so that i can able to recive or send notifications. And should i create a key for android device on GCM
Push notifications in Worklight (and I believe at large as well) are not sent from one device to another per-se; consider it this way:
You have two applications:
A managing app
A receiving app
User A is running the managing app - this application is able to send a request to the server, which tells it to send a notification to some other user(s).
User B is running the receiving app - this application is able to receive notifications.
All of this is not related at all to the Google Play store.
Yes, both apps will require a GCM senderId and Key values in order to have any Push Notification capabilities.
As for implementing all of this... there is no sample to do this, but you already have part of the solution (the sample app is able to receive notifications). What you need to do now is have the managing application be able to retrieve a list of / specific username(s), and create a procedure that will invoke a function to send the notification based on the username(s) you have retrieved.
I am looking to implement push notifications in my app. I have already sent notifications from inside the application's context, but I want the user to receive notifications when the app isn't running. For example, you receive a Twitter or Facebook notification when you have a new message, but the Facebook app isn't open or running. I will be reading data from a server. When the server sends out a message, I want the user to get the notification, whether the app is open or not. I have looked at Service but couldn't find anything promising. Any ideas?
Implement Google Cloud Messaging in your app. This works by sending push notifications through the Google Services, which are almost always active on an Android device. These services will then broadcast the notification to your app, and you can handle and use the data once you have received it from the Google Services.