Question

我正在尝试使用Firebase为推送通知创建一个应用程序（在Windows 10上）但是我无法在logcat中获取令牌。实际上这段代码必须在logcat中显示名为刷新令牌的令牌，但是它没有显示它，我还卸载了应用程序，然后多次运行应用程序，但问题仍然存在。如果有人知道其解决方案，我不知道我做错了什么，请在评论中发帖。我附上了所有文件

MainActivity.java

package com.example.mnaum.firebasepushnotification;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

import com.google.firebase.iid.FirebaseInstanceId;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

    }
}

MyFirebaseInstanceIDService.java

package com.example.mnaum.firebasepushnotification;

import android.util.Log;
import android.widget.Toast;

import com.google.firebase.iid.FirebaseInstanceId;
import com.google.firebase.iid.FirebaseInstanceIdService;


public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {

    private static final String TAG = "MyFirebaseIIDService";

    @Override
    public void onTokenRefresh() {

        //Getting registration token
        String refreshedToken = FirebaseInstanceId.getInstance().getToken();

        //Displaying token on logcat
        Log.d(TAG, "Refreshed token: " + refreshedToken);

       sendRegistrationToServer(refreshedToken);

    }

    private void sendRegistrationToServer(String token) {
        //You can implement this method to store the token on your server
        //Not required for current project
    }
}

MyFirebaseMessagingService.java

package com.example.mnaum.firebasepushnotification;

import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.media.RingtoneManager;
import android.net.Uri;
import android.support.v4.app.NotificationCompat;
import android.util.Log;

import com.google.firebase.messaging.FirebaseMessagingService;
import com.google.firebase.messaging.RemoteMessage;


public class MyFirebaseMessagingService extends FirebaseMessagingService {

    private static final String TAG = "MyFirebaseMsgService";

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        //Displaying data in log
        //It is optional
        Log.d(TAG, "From: " + remoteMessage.getFrom());
        Log.d(TAG, "Notification Message Body: " + remoteMessage.getNotification().getBody());

        //Calling method to generate notification
        sendNotification(remoteMessage.getNotification().getBody());
    }

    //This method is only generating push notification
    //It is same as we did in earlier posts
    private void sendNotification(String messageBody) {
        Intent intent = new Intent(this, MainActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent,
                PendingIntent.FLAG_ONE_SHOT);

        Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentTitle("Firebase Push Notification")
                .setContentText(messageBody)
                .setAutoCancel(true)
                .setSound(defaultSoundUri)
                .setContentIntent(pendingIntent);

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

        notificationManager.notify(0, notificationBuilder.build());
    }
}

activity_main.xml中

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.mnaum.firebasepushnotification.MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</RelativeLayout>

的AndroidManifest.xml

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

        <!--
            Defining Services
        -->
        <service
            android:name=".MyFirebaseMessagingService">
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT"/>
            </intent-filter>
        </service>

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

</manifest>

build.gradle（项目级别）

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.3'
        classpath 'com.google.gms:google-services:3.0.0'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

build.gradle（应用级别）

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.0"
    defaultConfig {
        applicationId "com.example.mnaum.firebasepushnotification"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    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'
    testCompile 'junit:junit:4.12'
    compile 'com.google.firebase:firebase-messaging:9.0.0'
}

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

Answer 1

如果您正在使用Wifi网络，谷歌API可能无法正常工作。如果是这样，那么请管理员，那么你就可以去了。

可能是您没有获取日志只尝试复制并通过日志过滤器或您的IDE中的TAG，然后检查日志。

如果您正在获取，请保存到SharedPrefernce或上传到服务器。

Answer 2

请参考这个，可能是有用的

在sendRegistrationToServer(refreshedToken)方法

中呼叫onTokenRefresh()

public class MyFirebaseInstanceIDService 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);

    // 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.
    //call this 
    sendRegistrationToServer(refreshedToken);
}
private void sendRegistrationToServer(String token) {
    // TODO: Implement this method to send token to your app server.
}
}

在MAinActivity.java中，在oncreate（），

中添加它

   if (getIntent().getExtras() != null) {
        for (String key : getIntent().getExtras().keySet()) {
            Object value = getIntent().getExtras().get(key);
            Log.d(TAG, "Key: " + key + " Value: " + value);
        }
    }

    String token = FirebaseInstanceId.getInstance().getToken();
    System.out.println("========== PUSH ID ========" + token);
    Toast.makeText(MainActivity.this, "PUSH ID :::" + token,         Toast.LENGTH_SHORT).show();

Answer 3

ublic class MyFirebaseInstanceIDService 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);

    // 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.
    //call this 
    sendRegistrationToServer(refreshedToken);
}
private void sendRegistrationToServer(String token) {
    // TODO: Implement this method to send token to your app server.
}
}

您只需使用扩展FirebaseInstanceIdService的接收器，您就可以使用“Refreshed token：”标签在调试日志中搜索，并且可以看到您的令牌。请确保重新启动，因为每次启动应用程序时都不会刷新令牌。

Answer 4

您可以使用SharedPreferences。首先在storeRegIdInPref类中定义名为MyFirebaseInstanceIDService的新方法，然后使用onTokenRefresh方法调用。

private void storeRegIdInPref(String token) {
        SharedPreferences pref = getApplicationContext().getSharedPreferences("my_pref", 0);
        pref.edit().putString("regId", token).apply();
    }

然后，使用此方法获取MainActivity中的偏好设置：

private void displayRegID() {
        SharedPreferences pref = getApplicationContext().getSharedPreferences("my_pref", 0);
        String regId = pref.getString("regId", null);
        Log.i(TAG, "Firebase Registration ID: " + regId);
    }

在onCreate。

中调用该方法

Answer 5

尝试卸载该应用并再次运行，我也遇到了同样的问题，这种方法对我有用。

Answer 6

希望对于仍然在Logcat中寻找令牌的人，请尝试以下操作：

从设备上卸载您的应用
在IDE的Log.d（...）行中添加断点
运行调试器
跳过或只是在调试器中查看您的断点以查看令牌键

您现在应该可以看到您的令牌。

日志
调试器断点

快乐编码：）

无法在logcat中查看Firebase推送通知应用程序中的令牌

6 个答案: