android - 未从后端收到 GCM 推送通知

Question

我正在开发一款包含推送通知的新应用。这是我到目前为止所做的:

public class C2DMMessageReceiver extends IntentService {
public static final int NOTIFICATION_ID = 1;
private NotificationManager mNotificationManager;
private final String TAG = "GCM Notification receiver..";
NotificationCompat.Builder builder;

public C2DMMessageReceiver() {
    super("GcmIntentService");
}

@Override
protected void onHandleIntent(Intent intent) {
    Bundle extras = intent.getExtras();
    GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);
    // The getMessageType() intent parameter must be the intent you received
    // in your BroadcastReceiver.
    String messageType = gcm.getMessageType(intent);

    if (!extras.isEmpty()) {  // has effect of unparcelling Bundle
        /*
         * Filter messages based on message type. Since it is likely that GCM
         * will be extended in the future with new message types, just ignore
         * any message types you're not interested in, or that you don't
         * recognize.
         */
        if (GoogleCloudMessaging.
                MESSAGE_TYPE_SEND_ERROR.equals(messageType)) {
            sendNotification("Send error: " + extras.toString());
        } else if (GoogleCloudMessaging.
                MESSAGE_TYPE_DELETED.equals(messageType)) {
            sendNotification("Deleted messages on server: " +
                    extras.toString());
            // If it's a regular GCM message, do some work.
        } else if (GoogleCloudMessaging.
                MESSAGE_TYPE_MESSAGE.equals(messageType)) {
            // This loop represents the service doing some work.
            for (int i=0; i<5; i++) {
                Log.i(TAG, "Working... " + (i+1)
                        + "/5 @ " + SystemClock.elapsedRealtime());
                try {
                    Thread.sleep(5000);
                } catch (InterruptedException e) {
                }
            }
            Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime());
            // Post notification of received message.
            sendNotification("Received: " + extras.toString());
            Log.i(TAG, "Received: " + extras.toString());
        }
    }
    // Release the wake lock provided by the WakefulBroadcastReceiver.
    C2DMRegistrationReceiver.completeWakefulIntent(intent);
}

// Put the message into a notification and post it.
// This is just one simple example of what you might choose to do with
// a GCM message.
private void sendNotification(String msg) {
    mNotificationManager = (NotificationManager)
            this.getSystemService(Context.NOTIFICATION_SERVICE);

    PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
            new Intent(this, MainActivity.class), 0);

    NotificationCompat.Builder mBuilder =
            new NotificationCompat.Builder(this)
                    .setSmallIcon(R.drawable.ic_launcher)
                    .setContentTitle("עדכוני TGSpot")
                    .setStyle(new NotificationCompat.BigTextStyle()
                            .bigText(msg))
                    .setContentText(msg);

    mBuilder.setContentIntent(contentIntent);
    mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
}
}

这是处理从我的第三方服务器后端代码接收来自 GCM 的数据的代码。

设备的 token 已成功保存在服务器上，它们通过常规 HTTP Post 请求推送到服务器。

这是 Android list :

    <permission android:name="com.tgspot.android.permission.C2D_MESSAGE"
    android:protectionLevel="signature"/>

<uses-permission android:name="com.tgspot.android.permission.C2D_MESSAGE"/>
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE"/>

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

<uses-permission android:name="android.permission.WAKE_LOCK" />

<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.USE_CREDENTIALS" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:theme="@style/Theme.Base.AppCompat.Light.DarkActionBar"
    android:label="@string/app_name">
    <receiver
        android:name=".C2DMRegistrationReceiver"
        android:permission="com.google.android.c2dm.permission.SEND"
        android:enabled="true">
        <intent-filter>
            <action android:name="com.google.android.c2dm.intent.REGISTRATION" >
            </action>

            <category android:name="com.tgspot.android" />
        </intent-filter>
    </receiver>
    <service android:name=".C2DMMessageReceiver">
        <intent-filter>
         <action android:name="com.google.android.c2dm.intent.RECEIVE" />
        </intent-filter>
    </service>
    <activity
        android:name="com.tgspot.android.MainActivity"
        android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

C2DMRegistrationReceiver.class

public class C2DMRegistrationReceiver extends WakefulBroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();
    Log.w("C2DM", "Registration Receiver called");

    if ("com.google.android.c2dm.intent.REGISTRATION".equals(action)) {
        Log.w("C2DM", "Received registration ID");
        final String registrationId = intent
                .getStringExtra("registration_id");
        String error = intent.getStringExtra("error");

        Log.d("C2DM", "dmControl: registrationId = " + registrationId
                + ", error = " + error);
        String deviceId = Settings.Secure.getString(context.getContentResolver(),
                Settings.Secure.ANDROID_ID);
        sendRegistrationIdToServer(deviceId, registrationId);
        // Also save it in the preference to be able to show it later
        saveRegistrationId(context, registrationId);
    } else if ("com.google.android.c2dm.intent.RECEIVE".equals(action)) {
        ComponentName comp = new ComponentName(context.getPackageName(),
                C2DMMessageReceiver.class.getName());
        startWakefulService(context, (intent.setComponent(comp)));
        setResultCode(Activity.RESULT_OK);
    }
}

private void saveRegistrationId(Context context, String registrationId) {
    SharedPreferences prefs = PreferenceManager
            .getDefaultSharedPreferences(context);
    SharedPreferences.Editor edit = prefs.edit();
    edit.putString("C2DMM_AUTH", registrationId);
    edit.commit();
}

public void sendRegistrationIdToServer(String deviceId,
                                       String registrationId) {


    Log.d("C2DM", "Sending registration ID to my application server");
    final HttpClient client = new DefaultHttpClient();
    final HttpPost post = new HttpPost("http://www.tgspot.co.il/register/");

    // set up the POST data
    List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
    // Get the deviceID
    nameValuePairs.add(new BasicNameValuePair("os", "Android"));
    nameValuePairs.add(new BasicNameValuePair("token",
            registrationId));

    // encode the POST data
    try {
        post.setEntity(new UrlEncodedFormEntity(nameValuePairs));
    } catch (UnsupportedEncodingException e1) {
        //e1.printStackTrace();
    }

    // execute the HTML POST call to hit the server
    new Thread(new Runnable() {
        public void run() {
            try {
                HttpResponse response = client.execute(post);
            } catch (ClientProtocolException e) {
                //e.printStackTrace();
            } catch (IOException e) {
                //e.printStackTrace();
            }
        }
    }).start();
    }
  }

Answer 1

在您的 list 中，您缺少 <action android:name="com.google.android.c2dm.intent.RECEIVE" />
是 C2DMRegistrationReceiver 的 Intent 过滤器.没有它，GCM 消息广播就无法到达该应用。

您没有在问题中包含 list 的权限部分，所以我不能说您是否遗漏了其他内容。

你的 C2DMRegistrationReceiver仅处理 REGISTRATION Intent 。它还应该处理 com.google.android.c2dm.intent.RECEIVE .这些是接收 GCM 消息的 Intent 。

实际上，如果您使用 GoogleCloudMessaging.register 的新同步注册方法(我看到您已经在使用该类)，C2DMRegistrationReceiver 根本不需要处理 REGISTRATION Intent 。

你的 onReceive方法应更改为:

public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();
    Log.w("C2DM", "Registration Receiver called");

    if ("com.google.android.c2dm.intent.REGISTRATION".equals(action)) {
        Log.w("C2DM", "Received registration ID");
        final String registrationId = intent
                .getStringExtra("registration_id");
        String error = intent.getStringExtra("error");

        Log.d("C2DM", "dmControl: registrationId = " + registrationId
                + ", error = " + error);
        String deviceId = Settings.Secure.getString(context.getContentResolver(),
                Settings.Secure.ANDROID_ID);
        sendRegistrationIdToServer(deviceId, registrationId);
        // Also save it in the preference to be able to show it later
        saveRegistrationId(context, registrationId);
    } else if ("com.google.android.c2dm.intent.RECEIVE".equals(action)) {
        ComponentName comp = new ComponentName(context.getPackageName(),
                C2DMMessageReceiver.class.getName());
        startWakefulService(context, (intent.setComponent(comp)));
        setResultCode(Activity.RESULT_OK);
    }
}

这样一个com.google.android.c2dm.intent.RECEIVE广播会触发 C2DMMessageReceiver显示通知的服务。

如果您使用新的注册方法，则根本不需要第一个 if 条件。