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我正在按照https://firebase.google.com/docs/cloud-messaging/android/client上的说明在 Android 上设置 Firebase 云消息传递客户端应用程序。我已经编辑了我的应用程序清单以包含 MyFirebaseMessagingService 和 MyFirebaseInstanceIDService 服务。我现在正在尝试访问设备注册令牌。这是我的MyFirebaseInstanceIDService.java文件的内容（从https://github.com/firebase/quickstart-android/blob/master/messaging/app/src/main/java/com/google/firebase/quickstart/fcm/MyFirebaseInstanceIDService获得的代码.java）：

/**
 * Copyright 2016 Google Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.[myapp];
import android.util.Log;
import com.google.firebase.iid.FirebaseInstanceId;
import com.google.firebase.iid.FirebaseInstanceIdService;
public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {
    private static final String TAG = "MyFirebaseIIDService";
    /**
     * 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.
     */
    // [START refresh_token]
    @Override
    public void onTokenRefresh() {
        // Get updated InstanceID token.
        String refreshedToken = FirebaseInstanceId.getInstance().getToken();
        Log.d(TAG, "Refreshed token: " + refreshedToken);
        // 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(refreshedToken);
        // TODO: Implement this method to send any registration to your app's servers.
        System.out.println("Registration.onTokenRefresh TOKEN: " + refreshedToken );
    }
    // [END refresh_token]
    /**
     * Persist token to third-party servers.
     *
     * Modify this method to associate the user's FCM InstanceID token with any server-side account
     * maintained by your application.
     *
     * @param token The new token.
     */
    private void sendRegistrationToServer(String token) {
        // TODO: Implement this method to send token to your app server.
    }
}

由于我正在使用Log.d(TAG, "Refreshed token: " + refreshedToken);，我希望在 Android Studio 中从 Android Monitor 中看到令牌，但我看不到它。你知道我需要做什么onTokenRefresh()才能调用该方法以便FirebaseInstanceId.getInstance().getToken()执行并生成令牌吗？谢谢你。

4

3 回答 3

1

onTokenRefresh仅在更新令牌时调用。您应该使用FirebaseInstanceId.getInstance().getInstanceId(). FirebaseInstanceId.getInstance().getToken()已弃用并阻塞-因此，从它调用它onCreate确实是个坏主意，因为它会引入挂在主/ ui线程上

于 2019-12-13T12:41:36.307 回答
1

您是否在清单中注册了该服务？这通常会在使用 android studio 时自动发生，但请确保它如参考中所述

于 2017-11-27T17:20:00.350 回答
-1

我只需要从我的应用程序的第一个活动中使用它：

@Override
protected void onCreate(Bundle savedInstanceState) {
    // Get token
    String token = FirebaseInstanceId.getInstance().getToken();
    System.out.println("Token obtained from [MyFirstActivity].java: "+token+" Token received successfully.");
}

在 Android Monitor 中，我可以看到类似这样的内容：

11-27 11:08:49.213 10730-10730/com.[myapp] I/System.out: Token obtained from [MyFirstActivity].java: f95EVa9yfbo:APA91bFm56ZuQLWYSDDgPlkf4a88Lu6Gp4DoXVDJ5dRIlnjDncq0UdNnlSi7wxbbut6YX7Z1kmvyS3bzk_Zrl-1doHCw5XFeOXTthNzo4sXASWqQjHdfuA3pH3Js4wlbf_CnRkw5Mzao Token received successfully.

于 2017-11-27T17:13:10.753 回答