我不能给 Token Firebase

Question

MyFirebaseMessagingService.java：public class MyFirebaseMessagingService extends FirebaseMessagingService {    @Override    public void onNewToken(String s) {        Log.e("NEW_TOKEN", s);    }    @Override    public void onMessageReceived(RemoteMessage remoteMessage) {        Map<String, String> params = remoteMessage.getData();        JSONObject object = new JSONObject(params);        Log.e("JSON_OBJECT", object.toString());        String NOTIFICATION_CHANNEL_ID = "Nilesh_channel";        long pattern[] = {0, 1000, 500, 1000};        NotificationManager mNotificationManager =                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {            NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "Your Notifications",                    NotificationManager.IMPORTANCE_HIGH);            notificationChannel.setDescription("");            notificationChannel.enableLights(true);            notificationChannel.setLightColor(Color.RED);            notificationChannel.setVibrationPattern(pattern);            notificationChannel.enableVibration(true);            mNotificationManager.createNotificationChannel(notificationChannel);        }        // to diaplay notification in DND Mode        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {            NotificationChannel channel = mNotificationManager.getNotificationChannel(NOTIFICATION_CHANNEL_ID);            channel.canBypassDnd();        }        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID);        mNotificationManager.notify(1000, notificationBuilder.build());    }}跳过MainActivity 中的此代码。我不知道该怎么办。Firebase OAuth 完美运行。但是没有令牌，我无法检查 Firebase 通知。现在是调试模式。也许我必须更改它才能发布？请帮我。

Answer 1

According to latest docs,you can get new token id from onNewToken Method.<br/>

 @Override

        public void onNewToken(String s) {

            Log.e("NEW_TOKEN", s);

            //Implement your business logic to send your device token from here

        }

Answer 2

尝试更改您的 addOnSuccessListener 方法，删除第一个参数，如下所示：

FirebaseInstanceId.getInstance().getInstanceId().addOnSuccessListener(new OnSuccessListener<InstanceIdResult>() {

        @Override

        public void onSuccess(InstanceIdResult instanceIdResult) {

            //Manage your token

            String token = instanceIdResult.getToken();

            Log.i("FCM_TOKEN", token);

        }

    });

Answer 3

除了 FirebaseMessagingService 之外，还需要添加 FirebaseInstanceIdService

public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {

    public MyFirebaseInstanceIDService() {

    }

    @Override

    public void onTokenRefresh() {

        // Get updated InstanceID token.

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

        MyNotificationManager.getInstance().registerToken(getApplicationContext(), refreshedToken);

    }

}

然后在您的清单中添加：

    <service

        android:name=".MyFirebaseInstanceIDService"

        android:enabled="true"

        android:exported="true"/>