我正在尝试在我的Android应用程序中使用GCM实现推送通知。我成功创建了一个服务器来向设备推送消息，并成功创建了一个API来将设备令牌存储在服务器上。根据链接中的示例项目，在应用程序中创建了一个客户端。还创建了一个php函数来向应用程序推送通知。当我在服务器上运行该函数时，我得到的响应是成功的。这意味着消息已从GCM发送到移动设备。但是通知没有显示，而是在日志cat中得到以下内容。
为了捕获消息，我正在使用相同的监听器服务，该服务在示例应用程序中表示（我在下面添加了参考）。所以我认为问题出在通知管理器上。因此，我将其注释掉并运行应用程序。但是，我仍然得到相同的响应，没有任何通知。我不知道问题出在哪里。
但无论何时从服务器接收到消息，都必须在上述监听器中调用
06-05 14:58:59.172 23693-28001/com.greenboards.base I/dalvikvm﹕ Could not find method android.app.Notification$Builder.setColor, referenced from method com.google.android.gms.gcm.zza.zzv
06-05 14:58:59.172 23693-28001/com.greenboards.base W/dalvikvm﹕ VFY: unable to resolve virtual method 184: Landroid/app/Notification$Builder;.setColor (I)Landroid/app/Notification$Builder;
06-05 14:58:59.173 23693-28001/com.greenboards.base D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x0068
06-05 14:58:59.175 23693-28001/com.greenboards.base W/GcmNotification﹕ Failed to show notification: Missing icon
为了捕获消息，我正在使用相同的监听器服务，该服务在示例应用程序中表示（我在下面添加了参考）。所以我认为问题出在通知管理器上。因此，我将其注释掉并运行应用程序。但是，我仍然得到相同的响应，没有任何通知。我不知道问题出在哪里。
package com.greenboards.base;
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.greenboards.base.R;
import com.google.android.gms.gcm.GcmListenerService;
import com.greenboards.base.SplashScreen;
public class MyGcmListenerService extends GcmListenerService {
private static final String TAG = "MyGcmListenerService";
/**
* 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);
/**
* Production applications would usually process the message here.
* Eg: - Syncing with server.
* - Store message in local database.
* - Update UI.
*/
/**
* In some cases it may be useful to show a notification indicating to the user
* that a message was received.
*/
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) {
/*Intent intent = new Intent(this, SplashScreen.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("GCM Message")
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0 *//* ID of notification *//*, notificationBuilder.build());*/
Log.v("notification message",message);
}
}
但无论何时从服务器接收到消息，都必须在上述监听器中调用
onMessageReceived。在onMessageReceived函数中，有两个记录函数来显示消息和发送者。它也没有执行。这意味着函数本身没有执行。下面我添加了清单内容。<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.greenboards.base"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk
android:minSdkVersion="9"
android:targetSdkVersion="19" />
<!-- Application Permissions -->
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<permission
android:name="com.greenboards.base.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="com.greenboards.base.permission.C2D_MESSAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.VIBRATE" />
<!-- Application Configuration and Activities -->
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme">
<activity android:name=".SplashScreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!-- [START gcm_receiver] -->
<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.greenboards.base" />
</intent-filter>
</receiver>
<!-- [END gcm_receiver] -->
<!-- [START gcm_listener] -->
<service
android:name="com.greenboards.base.MyGcmListenerService"
android:exported="false" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
</intent-filter>
</service>
<!-- [END gcm_listener] -->
<!-- [START instanceId_listener] -->
<service
android:name="com.greenboards.base.MyInstanceIDListenerService"
android:exported="false">
<intent-filter>
<action android:name="com.google.android.gms.iid.InstanceID"/>
</intent-filter>
</service>
<!-- [END instanceId_listener] -->
<service
android:name="com.greenboards.base.RegistrationIntentService"
android:exported="false">
</service>
</application>
</manifest>
到现在我仍然无法调试出问题所在。我是做错了什么还是遗漏了什么？
W/GcmNotification﹕ Failed to show notification: Missing icon。你能否展示一下你发送给GCM的内容（包括curl请求）？ - peshkira