没有刷新令牌firebaseandroid

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.

    

    
    

    
    

    
         

            
                
                
            
            
        

        
            
                
            
        

        
            
                
            
               
    



    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());
}

}

onTokenRefresh()第一次安装应用程序时,该方法不会触发.它仅由特定方案触发.

要获得您的令牌,您必须FirebaseInstanceId.getInstance().getToken()在应用程序的开头调用(例如in onCreate或者其他内容).