I have to create call application with help of Agora. When app is in foreground it is okay, but i want to accept calls when app is on background or terminated. I am trieng to use Callkeep plugin for accepting calls of background
I found a way via FCM background message,but i dont know how to implement solutiion for IOS,it does not have FCM background message
I tried use VOIP notification, but i dont know how to send them to my flutter app
I use Firebase as a backend
I need solution for both Android and IOS
Thanks
For IOS you will have to implement a server side script that will send VOIP Push notifications to the user before the real VOIP call comes in. From what I know, you cannot user Firebase for this.
Please refer to https://developer.apple.com/documentation/pushkit/responding_to_voip_notifications_from_pushkit to know more about the changes about handling VOIP calls in background.
Also, refer to https://developer.apple.com/documentation/pushkit/responding_to_voip_notifications_from_pushkit to know more about sending VOIP Push notifications on server side.
Related
We are developing an app with angular/ionic in which we use capacitor jitsi plugin for video calls. What we are now trying to do is to receive notifications (via firebase) like in whatsapp with the incoming call screen and two buttons to accept and decline. Any idea on how to do that?
Thanks
If you got the choice to change the notification service, instead or directly using firebase, you could use Onesignal which extends firebase and they already have a service named VOIP notifications which should kinda do your needs and here is the link:
https://documentation.onesignal.com/docs/voip-notifications
In case your are restricted with firebase or need to know how this could be done, bellow will be the way to achieve it..
As for android:
First as logic part, you need to add some code in the native layer since hybrid apps usually can't interact from JavaScript side to native side in case app was not launched, so in order to wake the application on a specific event like notification received or any other actions that phone system can hold..
Second, as technical part, you need to add broadcast receivers and the receivers role stand to interact as native code with system. example in the link below:
https://www.digitalocean.com/community/tutorials/android-broadcastreceiver-example-tutorial
also another video about foreground and background broadcast receiver service in the link below:
https://www.youtube.com/watch?v=rlzfcqDlovg
video code output in git:
https://github.com/borntocoderepos/callrecorder
in the Youtube video example, the user is launching a toast message on phone call if app was opened or closed (background or foreground) so you can launch your app with intent with passing data and capture the data on app start as Deep Links as capacitor (https://capacitorjs.com/docs/guides/deep-links) or Cordova (https://ionicframework.com/docs/native/deeplinks)..
And instead of listening to network or phone calls, you can listen to Notifications and for sure you need to do searches about your topic and or the notification service that you'll choose.
Now for the video and the tutorial not sure of the quality of code so make sure to do more researches about the way its done from different places (could be outdated code or bad code quality or even not complete service and will discuss about this point below).
In android there is policy about using background and foreground services so once you start a service you need to end it after your done so make sure after you receive the notification and launch your app to stop the listening since it would cost power usage and perhaps could be stopped by Playstore as harmful app.
Now considering IOS it should be the same concept so make searches about this topic, but for IOS, the listeners policy as I remember , the receivers should not be waked up for more than 15 mins, so also keep this in mind and make sure you stop the receivers directly after launching your Hybrid app.
Broadcast equivalent receiver for IOS:
http://www.andrewcbancroft.com/2014/10/08/fundamentals-of-nsnotificationcenter-in-swift/
is there a way to display incoming call notifications when the flutter app is terminated or in the background? I tried to use connectyCube package, but too complex. Also, I used the flutter background service to listen to incoming calls with socket.io but the app got crashed when it is launched from the background. I need your guidance.
You can use native code in android for incoming call notification.
For Android you can use HeadsUpNotificationService as we use in native.
And for Ios you can use https://github.com/peerwaya/flutter_call_kit
I am implementing a video call feature in Flutter with the help of Firebase Cloud Messaging,
it's working fine in foreground.
my doubt is
while app is in background I need to get a receiving call same like as WhatsApp in both Android and IOS .... is it possible in flutter?
yes. it is possible by the combination of push notification and flutter_callkeep to show the upcoming call screen.
Or if you want to run the background process you need to refer to Method Channels, and here is a post about creating a service for running app in the background. also background_fetch is a useful package for background process.
Is there a way to automatically resume a flutter app from a paused or inactive lifecycle state with a background service?
Similar to when the WhatsApp app received a call while it was paused or inactive.
No, you can not simply wake up the app from a service. This would open the door for all kinds of spam apps and security risks. You need to specifically register it as VOIP app using CallKit or something like SIP on Android to receive incoming calls.
For other things you can use push notifications but that won't start your app. The user always has to click on the notification that you display.
You need to use a couple of things together:
Use push notifications to wake up your app:
https://pub.dev/packages/firebase_messaging
To start your app using push notifications refers to this post:
https://stackoverflow.com/a/48405551/4335775
Use CallKit (IOS) or ConnectionServices (Android) to show the upcoming call screen. By the day of this answer there are only a few packages to handle these things, here is one that can handle both platforms:
https://pub.dev/packages/flutter_callkeep
If you want a completely different thing and need to run some background process, there are bunch whole of things you should know first. I suggest beginning here: https://flutter.dev/docs/development/packages-and-plugins/background-processes
Here is a usefull package to work with background processes that should be constantly running:
https://pub.dev/packages/background_fetch
The app can only be waked up with explicit commands. The user must hit the button. And there are ways to handle the input, messages may pass parameters, you can save the previous state in the database or shared preferences, etc.
I have searched Google, YouTube and stack overflow for the answer but I haven't found any real solution.
I want to implement my own push notification solution on flutter, without firebase nor One signal. I do not want to depend on a third party service.
My Backend is on GoLang with graphql.
On the frontend, I am using a block pattern (flutter_bloc v6) and graphql_flutter v4.
I am using graphql subscriptions, so whenever the Backend emits a signal, the flutter app is able to receive it immediately.
I would like to be able to push up notifications to my users whenever the Backend sends some information, no matter if the app is on the foreground, background, closed or whatever. I do not want scheduled notifications either (aka flutter_local_notifications)
Do you want to use a third service other than firebase/one signal?
Then you can try airship(https://docs.airship.com/reference/messages/message-types/push-notifications/)
But if you want to setup your own provider server, please check this page(https://developer.apple.com/documentation/usernotifications/setting_up_a_remote_notification_server), this is the start point, from where you can start your investigation and development.
Then you have to create your own backend system to send push notifications to the device. You have to develop Native Application for iOS and Android going beyond flutter. The local push notification could be used but you need to develop a custom notification receiver that will respond to the notification call back from the server in the background.