我目前正在开发一个统一插件，它将利用 GCM 进行推送通知，但似乎无法解决这个问题。我按照谷歌开发者网站上的步骤，设法让应用程序注册并从服务器接收消息。但是，一旦 GcmReceiver 收到消息，我的 logcat 就会输出以下错误：
无法启动服务 Intent { act=com.google.android.c2dm.intent.RECEIVE flg=0x10 pkg=com.test.app.appname (has extras) } U=0: not found
以下是我用于插件的清单：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.test.app.appname">
<permission android:name="com.test.app.appname.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="com.test.app.appname.permission.C2D_MESSAGE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<!-- This app has permission to register and receive data message. -->
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<application
android:allowBackup="true"
android:icon="@drawable/app_icon"
android:label="@string/app_name">
<receiver
android:name="com.google.android.gms.gcm.GcmReceiver"
android:exported="true"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<category android:name="com.test.app.appname" />
</intent-filter>
</receiver>
<service
android:name="com.test.app.appname.MyGCMListenerService"
android:exported="false"
android:enabled="true">
<intent-filter>
<action android:name="com.google.android.c2m.intent.RECEIVE" />
</intent-filter>
</service>
<service
android:enabled="true"
android:name="com.test.app.appname.MyRegistrationIntentService"
android:exported="false" >
<intent-filter>
<action android:name="com.test.app.appname.GCMREGISTER" />
</intent-filter>
</service>
<activity
android:name=".AndroidAPI"
android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen"
android:screenOrientation="sensorLandscape"
android:label="@string/app_name"
android:windowSoftInputMode="adjustPan">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<data android:host ="startActivity" android:scheme ="LOHengqa" />
</intent-filter>
</activity>
</application>
</manifest>我想知道的一件事是我是否需要创建自己的自定义接收器。从谷歌开发人员的教程中，您似乎可以使用 android.gms.gcm.GcmReceiver，这会触发 GCMListener 上的调用。然而，从我正在经历和尝试调试代码的情况来看，我不知道这是否正确。我的 GCMListenerService 究竟是如何被触发的？我是否缺少将接收器连接到 GCMListenerService 的部分？
顺便说一下，这是 MyGCMListenerService 的代码
/**
* Copyright 2015 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.test.app.appname;
import static com.test.app.appname.CommonUtilities.APP_CONTEXT;
import static com.test.app.appname.CommonUtilities._GetString;
import static com.test.app.appname.CommonUtilities._GetDrawable;
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.os.Bundle;
import android.support.v4.app.NotificationCompat;
import android.util.Log;
import com.google.android.gms.gcm.GcmListenerService;
public class MyGCMListenerService extends GcmListenerService
{
private static final String TAG = "MyGCMListService";
/**
* Called when message is received.
*
* @param from SenderID of the sender.
* @param data Data bundle containing message data as key/value pairs.
* For Set of keys use data.keySet().
*/
// [START receive_message]
@Override
public void onMessageReceived(String from, Bundle data) {
String message = data.getString("message");
Log.d(TAG, "From: " + from);
Log.d(TAG, "Message: " + message);
if (from.startsWith("/topics/")) {
// message received from some topic.
} else {
// normal downstream message.
}
sendNotification(message);
}
// [END receive_message]
/**
* Create and show a simple notification containing the received GCM message.
*
* @param message GCM message received.
*/
private void sendNotification(String message) {
final String appId = this.getPackageName();
long when = System.currentTimeMillis();
Intent intent = APP_CONTEXT.getPackageManager().getLaunchIntentForPackage(appId);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_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(_GetDrawable(APP_CONTEXT, "notification_icon"))
.setContentTitle(_GetString(APP_CONTEXT, "app_name"))
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify((int)(when % 1000), notificationBuilder.build());
}
}