未生成 FCM 推送通知令牌

Question

I have create Project on firebase console site. Project is successfully created and download google-service.json file and paste in app on android studio. created class FirebaseInstanceIDService.java token generated in display logcat but it not generated and not display. when project run debug mode display FirebaseInstanceIDService.java is not load.

Android Studio tools - Firebase Assistant Cloud messaging setup Correctly display and connection also correctly display but token is not generated.

FirebaseInstanceIDService.java

public class FirebaseInstanceIDService extends FirebaseInstanceIdService {

    private static final String TAG = "MyFirebaseIIDService";

    @Override
    public void onTokenRefresh() {
          super.onTokenRefresh();

        String newToken = FirebaseInstanceId.getInstance().getToken();

        Log.d(TAG, "Refreshed token: " + newToken);

        Constan.token = newToken;
    }
}

Gradle.build(Project-level)

     dependencies {
            classpath 'com.android.tools.build:gradle:2.3.0'
            classpath 'com.google.gms:google-services:3.1.1'
}

Gradle.build(app-level)

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:26.+'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'com.google.firebase:firebase-messaging:11.0.4'
    testCompile 'junit:junit:4.12'

    compile 'com.squareup.okhttp:okhttp:2.0.0'
}

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

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.firebase.zala.fiirebase">

    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">


        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>



        <service
            android:name=".FirebaseInstanceIDService">
            <intent-filter>
                <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
            </intent-filter>
        </service>


    </application>

</manifest>

Answer 1

uninstall you app from phone , and then again install and set your logcat to debug. you'll get your token.

Answer 2

The token will not be refreshed every time you run the app. So the function onTokenRefresh will rarely be called.

But it will surely be called the first time you run the app. So when it is obtained, you should save it in the shared preferences so that in next usages of the app, you can get the token from the shared preferences.

To get the token again, you can try uninstalling the app or clearing the app data, so that a new token will be generated and the method onTokenRefresh will be called.

Answer 3

Please go through to thislink for FCM integration.

1) maven entry in build.gralde(project level)

    allprojects {
    repositories {
        jcenter()
        maven { url "https://maven.google.com" }// Google's Maven repository
    }
}