Registering FCM token with Twilio to receive incoming call invites error (deprecated library)

[D-I-S-C]

Before filing an issue please check that the issue is not already addressed by the following:

• Voice SDK Guides
• GitHub Issues
• Changelog

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Description

When building the app, the following error happens:

error: cannot find symbol
import com.google.firebase.iid.FirebaseInstanceId;

  symbol:   class FirebaseInstanceId
  location: package com.google.firebase.iid

This error is due to FirebaseInstanceId now being deprecated, however not too sure on the new code required to make it work.

Steps to Reproduce

1. Generate google-services.json
2. Open the project in Android Studio
3. Use Twilio CLI to deploy access token and TwiML application to Twilio Serverless
4. Create a TwiML application for the Access Token
5. Generate an access token for the quickstart
6. Build the app (error occurs here)

Code

/*
 * Register your FCM token with Twilio to receive incoming call invites
 */
private void registerForCallInvites() {
    FirebaseInstanceId.getInstance().getInstanceId().addOnSuccessListener(this, instanceIdResult -> {
        String fcmToken = instanceIdResult.getToken();
        Log.i(TAG, "Registering with FCM");
        Voice.register(accessToken, Voice.RegistrationChannel.FCM, fcmToken, registrationListener);
    });
}

Expected Behavior

Succesful build.

Actual Behavior

Error as decribed above.

Reproduces How Often

100% (all the time).

Versions

        JavaVersion.VERSION_11,
        'androidGradlePlugin': '7.2.1',
        'googleServices'     : '4.3.10',
        'compileSdk'         : 31,
        'buildTools'         : '30.0.2',
        'minSdk'             : 21,
        'targetSdk'          : 31,
        'material'           : '1.4.0',
        'firebase'           : '17.6.0',
        'voiceAndroid'       : '6.1.1',
        'audioSwitch'        : '1.1.4',
        'androidxLifecycle'  : '2.2.0',
        'junit'              : '1.1.1'

Device Model

Nexus 4 API 27

[kbagchiGWC]

@D-I-S-C

Can you share the version of the dependencies used in your app build.gradle? https://github.com/twilio/voice-quickstart-android/blob/master/app/build.gradle#L74

[D-I-S-C]

@kbagchiGWC I have shared the versions for the project and the app in the original post under versions.

Below is the actual build.gradle (app) code used in my app:

apply plugin: 'com.android.application'

ext.playCustomRingback = { def playCustomRingback = System.getenv("playCustomRingback");

if (playCustomRingback == null) {
    logger.log(LogLevel.INFO, "Could not locate playCustomRingback environment variable. " +
            "Trying local.properties")
    Properties properties = new Properties()
    if (project.rootProject.file('local.properties').exists()) {
        properties.load(project.rootProject.file('local.properties').newDataInputStream())
        playCustomRingback = properties.getProperty('playCustomRingback')
    }
}

if (playCustomRingback == null) {
    playCustomRingback = false
}

return playCustomRingback;

}

android { compileSdkVersion versions.compileSdk

compileOptions {
    sourceCompatibility versions.java
    targetCompatibility versions.java
}

defaultConfig {
    applicationId "com.twilio.voice.quickstart"
    minSdkVersion versions.minSdk
    targetSdkVersion versions.targetSdk
    versionCode 1
    versionName "1.0"
}

buildTypes {
    release {
        minifyEnabled true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        signingConfig signingConfigs.debug
        buildConfigField("boolean", "playCustomRingback", "${playCustomRingback()}")
    }
    debug {
        buildConfigField("boolean", "playCustomRingback", "${playCustomRingback()}")
    }
}

// Specify that we want to split up the APK based on ABI
splits {
    abi {
        // Enable ABI split
        enable true

        // Clear list of ABIs
        reset()

        // Specify each architecture currently supported by the Video SDK
        include "armeabi-v7a", "arm64-v8a", "x86", "x86_64"

        // Specify that we do not want an additional universal SDK
        universalApk false
    }
}

}

dependencies { implementation "com.twilio:audioswitch:${versions.audioSwitch}" implementation "com.twilio:voice-android:${versions.voiceAndroid}" implementation "com.google.android.material:material:${versions.material}" implementation "com.google.firebase:firebase-messaging:${versions.firebase}" implementation "androidx.lifecycle:lifecycle-extensions:${versions.androidxLifecycle}" androidTestImplementation "androidx.test.ext:junit:${versions.junit}"

// added for firebase
implementation platform('com.google.firebase:firebase-bom:30.1.0') // Firebase BoM
implementation 'com.google.firebase:firebase-analytics'

}

apply plugin: 'com.google.gms.google-services'

[kbagchiGWC]

@D-I-S-C

Try replacing you current code in registerForCallInvites() with the code below. Let me know if this fixes your issue. We will look in to updating the QS with this changes.

/*
 * Register your FCM token with Twilio to receive incoming call invites
 */
  private void registerForCallInvites() {
      FirebaseMessaging.getInstance ().getToken ()
              .addOnCompleteListener ( task -> {
                  if (!task.isSuccessful ()) {
                      return;
                  }
                  if (null != task.getResult ()) {
                      String fcmToken = Objects.requireNonNull ( task.getResult () );
                      Log.i(TAG, "Registering with FCM");
                      Voice.register(accessToken, Voice.RegistrationChannel.FCM, fcmToken, registrationListener);
                  }
              } );
    }

[D-I-S-C]

The code is now compiling without errors - thank you! However, when I run it on any kind of emulator using the AVD and make a call as instructed, I hear "we are sorry an application error has occurred", the call is finished and I get the following message on my console (in error logs): "An attempt to retrieve content from https://my-quickstart-dev.twil.io/make-call returned the HTTP status code 404"