Question

我在firebase中获取刷新令牌时遇到了麻烦。我已经完成了文档并完全遵循了android的步骤。在我的日志中，我发现firebase连接成功。不知道为什么我没有获得实例令牌。我处于初始阶段并尝试在logcat中获取令牌。

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.project.application"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="9"
        android:targetSdkVersion="17" />

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

    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />

    <application
        android:allowBackup="false"
        android:icon="@drawable/icon"
        android:label="@string/app_name" >
        <activity
            android:name=".ProjectName"
            android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
            android:icon="@drawable/icon"
            android:label="@string/app_name"
            android:theme="@android:style/Theme.Light.NoTitleBar"> 

            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <meta-data
                android:name="com.google.android.gms.version"
                android:value="@integer/google_play_services_version" />
        </activity>

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

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

</manifest>

    public class MyInstanceIDListenerService  extends FirebaseInstanceIdService{    
    private static final String TAG = "MyFirebaseIIDService";
    @Override
    public void onTokenRefresh() {
        // Get updated InstanceID token.
        String refreshedToken = FirebaseInstanceId.getInstance().getToken();

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

    }

 public class MyFirebaseMessagingService extends FirebaseMessagingService {

private static final String TAG = "MyFirebaseMsgService";
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    // TODO(developer): Handle FCM messages here.

    Log.d(TAG, "From: " + remoteMessage.getFrom());
    String messageBody = null;

    // Check if message contains a data payload.
    if (remoteMessage.getData().size() > 0) {
        Log.d(TAG, "Message data payload: " + remoteMessage.getData());
    }

    if (remoteMessage.getNotification() != null) {
        messageBody = remoteMessage.getNotification().getBody();
        Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
    }

    sendNotification(messageBody);

}
private void sendNotification(String messageBody) {
    Intent intent = new Intent(this, SplashActivity.class);
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
            PendingIntent.FLAG_ONE_SHOT);

    Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
    NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
            .setSmallIcon(R.drawable.ic_stat_ic_notification)
            .setContentTitle("FCM Message")
            .setContentText(messageBody)
            .setAutoCancel(true)
            .setSound(defaultSoundUri)
            .setContentIntent(pendingIntent);

    NotificationManager notificationManager =
            (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}

}

Answer 1

onTokenRefresh()方法在第一次安装应用时不会触发。它仅由specific scenarios触发。

要获取令牌，您必须在应用开始时致电FirebaseInstanceId.getInstance().getToken()（例如onCreate或其他内容）。

Answer 2

来自FCM here

的github项目

文档onTokenRefresh()读取：

如果更新了InstanceID令牌，则调用此方法。如果先前令牌的安全性受到损害，则可能发生这种情况。请注意，最初生成InstanceID令牌时会调用此方法，因此您可以在此处检索令牌。

您必须{app}申请Clear Cache或重新安装才能调用此方法。

Answer 3

修正您的权限

<permission android:name="${applicationId}.permission.C2D_MESSAGE" android:protectionLevel="signature" />
<uses-permission android:name="${applicationId}.permission.C2D_MESSAGE" />

确保您拥有正确的google-service.json。

注意：令牌只生成一次。尝试清理应用数据以获取新令牌

编辑：

或者您可以进行迭代以在Activity / Fragment类中手动获取令牌

FirebaseInstanceId iid = FirebaseInstanceId.getInstance();
String token = iid.getToken();

while(token == null){
    iid = FirebaseInstanceId.getInstance();
    token = iid.getToken();
}

Logger.info("TOKEN","==>"+token);

Answer 4

只要生成新令牌，就会触发onNewToken回调。

/**
 * Called if InstanceID token is updated. This may occur if the security of
 * the previous token had been compromised. Note that this is called when the InstanceID token
 * is initially generated so this is where you would retrieve the token.
 */
@Override
public void onNewToken(String token) {
    Log.d(TAG, "Refreshed token: " + token);

    // If you want to send messages to this application instance or
    // manage this apps subscriptions on the server side, send the
    // Instance ID token to your app server.
    sendRegistrationToServer(token);
}

要获取令牌，您必须致电FirebaseInstanceId.getInstance().getInstanceId()

 FirebaseInstanceId.getInstance().getInstanceId()
                        .addOnCompleteListener(new OnCompleteListener<InstanceIdResult>() {
                            @Override
                            public void onComplete(@NonNull Task<InstanceIdResult> task) {
                                if (!task.isSuccessful()) {
                                    Log.w(TAG, "getInstanceId failed", task.getException());
                                    return;
                                }

                                // Get new Instance ID token
                                String token = task.getResult().getToken();

                                // Log and toast
                                String msg = getString(R.string.msg_token_fmt, token);
                                Log.d(TAG, msg);
                                Toast.makeText(MainActivity.this, msg, Toast.LENGTH_SHORT).show();
                            }
                        });

Answer 5

尝试删除google-services.json文件并重新添加。

没有刷新令牌firebase android

5 个答案: