Add support for specifying a delegate FirebaseMessagingService

[vuletuanbt]

We're using multiple push providers and thus need to use a delegate service for handling our notifications.

This PR adds the ability to specify a delegate service during instantiation as this library will otherwise throw an NPE when attempting to invoke getReactNativeHost() when handling a remote message.

[vuletuan]

@fabriziomoscon, please help us to review this PR

[jdegger]

Thank you for this PR @vuletuan I will also notify @fabriziomoscon about this one

[fabriziomoscon]

@vuletuan which FIrebase library version is your app using?
This library use 17.6.+

When testing this I received a crash for an incoming call:

java.lang.RuntimeException: Unable to instantiate service com.hoxfon.react.RNTwilioVoice.fcm.VoiceFirebaseMessagingService: java.lang.InstantiationException: java.lang.Class<com.hoxfon.react.RNTwilioVoice.fcm.VoiceFirebaseMessagingService> has no zero argument constructor
        at android.app.ActivityThread.handleCreateService(ActivityThread.java:4057)
        at android.app.ActivityThread.access$1800(ActivityThread.java:231)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1968)
        at android.os.Handler.dispatchMessage(Handler.java:107)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7682)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:516)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)

I guess that in this PR you should also update the build.gradle file and the README.md

https://firebase.google.com/support/release-notes/android#messaging_v21-0-1

[fabriziomoscon]

see comments

[vuletuan]

@vuletuan which FIrebase library version is your app using?
This library use 17.6.+

When testing this I received a crash for an incoming call:

java.lang.RuntimeException: Unable to instantiate service com.hoxfon.react.RNTwilioVoice.fcm.VoiceFirebaseMessagingService: java.lang.InstantiationException: java.lang.Class<com.hoxfon.react.RNTwilioVoice.fcm.VoiceFirebaseMessagingService> has no zero argument constructor
        at android.app.ActivityThread.handleCreateService(ActivityThread.java:4057)
        at android.app.ActivityThread.access$1800(ActivityThread.java:231)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1968)
        at android.os.Handler.dispatchMessage(Handler.java:107)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7682)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:516)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)

I guess that in this PR you should also update the build.gradle file and the README.md

https://firebase.google.com/support/release-notes/android#messaging_v21-0-1

I'm sorry for my missing. I will update build.gradle and README.md

[fabriziomoscon]

Thanks @vuletuanbt you need to change this line:
https://github.com/hoxfon/react-native-twilio-programmable-voice/blob/master/android/build.gradle#L61

[vuletuan]

@fabriziomoscon I'm using firebase-bom(26.4.0) to install firebase-messaging. I guess my firebase-messaging version could be 21.0.1

[vuletuan]

Thanks @vuletuanbt you need to change this line:
https://github.com/hoxfon/react-native-twilio-programmable-voice/blob/master/android/build.gradle#L61

I did it.

[fabriziomoscon]

@vuletuan I followed your instruction and update my app build.gradle with:

    implementation platform('com.google.firebase:firebase-bom:26.7.0')
    implementation 'com.google.firebase:firebase-messaging'

And upon receiving a call the app crashes with:

java.lang.RuntimeException: Unable to instantiate service com.hoxfon.react.RNTwilioVoice.fcm.VoiceFirebaseMessagingService: java.lang.InstantiationException: java.lang.Class<com.hoxfon.react.RNTwilioVoice.fcm.VoiceFirebaseMessagingService> has no zero argument constructor

By reading this https://firebase.google.com/docs/android/learn-more I can see that using the BoM is a major change in the way Firebase dependencies are handled. So I would ask you that you would submit a PR to migrate Firebase to the latest version (before this PR), so we can test that properly and see that calls in all scenarios can be received.

[vuletuan]

@vuletuan I followed your instruction and update my app build.gradle with:

    implementation platform('com.google.firebase:firebase-bom:26.7.0')

    implementation 'com.google.firebase:firebase-messaging'

And upon receiving a call the app crashes with:

java.lang.RuntimeException: Unable to instantiate service com.hoxfon.react.RNTwilioVoice.fcm.VoiceFirebaseMessagingService: java.lang.InstantiationException: java.lang.Class<com.hoxfon.react.RNTwilioVoice.fcm.VoiceFirebaseMessagingService> has no zero argument constructor

By reading this https://firebase.google.com/docs/android/learn-more I can see that using the BoM is a major change in the way Firebase dependencies are handled. So I would ask you that you would submit a PR to migrate Firebase to the latest version (before this PR), so we can test that properly and see that calls in all scenarios can be received.

It' ok. I will to help you migrate firebase to lastest version. But first, could you try firebase-bom
26.4.0. Just make sure the problem is about firebase-bom version

[fabriziomoscon]

@vuletuan by reading the error message I attempted to add an empty () cosntructor:

    public VoiceFirebaseMessagingService() {}
    public VoiceFirebaseMessagingService(FirebaseMessagingService delegate) {
        super();
        this.mFirebaseServiceDelegate = delegate;
        callNotificationManager = new CallNotificationManager();
    }

and now I can receive calls with both firebase-bom:
com.google.firebase:firebase-bom:26.7.0 and
com.google.firebase:firebase-bom:26.4.0

[vuletuan]

@fabriziomoscon I did not run into it. I will add it to my PR. What about the others?