android - GCMRegistrar.register 不起作用

Question

我正在尝试在我的应用程序上使用 GCM，但 GCMRegistrar.register 总是返回空字符串。这是我的 list :

<?xml version="1.0" encoding="utf-8"?>

<uses-sdk
    android:minSdkVersion="9"
    android:targetSdkVersion="17" />

<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="net.andromedya.maps.permission.MAPS_RECEIVE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="net.andromeya.permission.C2D_MESSAGE" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.VIBRATE" />

<permission
    android:name="net.andromedya.permission.C2D_MESSAGE"
    android:protectionLevel="signature" />
<permission
    android:name="net.andromedya.permission.MAPS_RECEIVE"
    android:protectionLevel="signature" />

<uses-feature
    android:glEsVersion="0x00020000"
    android:required="true" />

<supports-screens
    android:anyDensity="true"
    android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:xlargeScreens="true" />

<application
    android:allowBackup="true"
    android:hardwareAccelerated="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/Theme.Sherlock.Light" >
    <activity
        android:name="net.andromedya.activities.MainActivity"
        android:hardwareAccelerated="true"
        android:launchMode="singleTask"
        android:screenOrientation="portrait" >
    </activity>
    <activity
        android:name="net.andromedya.activities.AcBuEkrani"
        android:label="Example App"
        android:screenOrientation="portrait"
        android:theme="@style/Theme.Sherlock.Light.NoActionBar" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

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


    <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="AIza--------------------------AmmWJmePg" />

    <receiver
        android:name="com.google.android.gcm.GCMBroadcastReceiver"
        android:permission="com.google.android.c2dm.permission.SEND" >
        <intent-filter>

            <!-- Receives the actual messages. -->
            <action android:name="com.google.android.c2dm.intent.RECEIVE" />
            <!-- Receives the registration id. -->
            <action android:name="com.google.android.c2dm.intent.REGISTRATION" />

            <category android:name="net.andromedya.activities" />
        </intent-filter>
    </receiver>

    <service android:name="net.andromedya.activities.GCMIntentService" />
</application>

这是我的广播接收器:

private final BroadcastReceiver mHandleMessageReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        String newMessage = intent.getExtras().getString(EXTRA_MESSAGE);
        // Waking up mobile if it is sleeping
        WakeLocker.acquire(getActivity());

        Toast.makeText(getActivity(), "New Message: " + newMessage,
                Toast.LENGTH_LONG).show();

        // Releasing wake lock
        WakeLocker.release();
    }
};

和 Intent 服务:

公共(public)类 GCMIntentService 扩展 GCMBaseIntentService {

private static final String TAG = "GCMIntentService";

public GCMIntentService() {
    super(SENDER_ID);
}

/**
 * Method called on device registered
 **/
@Override
protected void onRegistered(Context context, String registrationId) {
    Log.i(TAG, "Device registered: regId = " + registrationId);
    displayMessage(context, "Your device registred with GCM");
    // Log.d("NAME", MainActivity.name);
    ServerUtilities.register(context, "gcm aliko", "gcm aliko@a.com",
            registrationId);
}

/**
 * Method called on device un registred
 * */
@Override
protected void onUnregistered(Context context, String registrationId) {
    Log.i(TAG, "Device unregistered");
    displayMessage(context, getString(R.string.gcm_unregistered));
    ServerUtilities.unregister(context, registrationId);
}

/**
 * Method called on Receiving a new message
 * */
@Override
protected void onMessage(Context context, Intent intent) {
    Log.i(TAG, "Received message");
    String message = intent.getExtras().getString("price");

    displayMessage(context, message);
    // notifies user
    generateNotification(context, message);
}

/**
 * Method called on receiving a deleted message
 * */
@Override
protected void onDeletedMessages(Context context, int total) {
    Log.i(TAG, "Received deleted messages notification");
    String message = getString(R.string.gcm_deleted, total);
    displayMessage(context, message);
    // notifies user
    generateNotification(context, message);
}

/**
 * Method called on Error
 * */
@Override
public void onError(Context context, String errorId) {
    Log.i(TAG, "Received error: " + errorId);
    displayMessage(context, getString(R.string.gcm_error, errorId));
}

@Override
protected boolean onRecoverableError(Context context, String errorId) {
    // log message
    Log.i(TAG, "Received recoverable error: " + errorId);
    displayMessage(context,
            getString(R.string.gcm_recoverable_error, errorId));
    return super.onRecoverableError(context, errorId);
}

/**
 * Issues a notification to inform the user that server has sent a message.
 */

private static void generateNotification(Context context, String message) {
    int icon = R.drawable.ic_launcher;
    long when = System.currentTimeMillis();
    NotificationManager notificationManager = (NotificationManager) context
            .getSystemService(Context.NOTIFICATION_SERVICE);
    Notification notification = new Notification(icon, message, when);

    String title = context.getString(R.string.app_name);

    Intent notificationIntent = new Intent(context, MainActivity.class);
    // set intent so it does not start a new activity
    notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
            | Intent.FLAG_ACTIVITY_SINGLE_TOP);
    PendingIntent intent = PendingIntent.getActivity(context, 0,
            notificationIntent, 0);
    notification.setLatestEventInfo(context, title, message, intent);
    notification.flags |= Notification.FLAG_AUTO_CANCEL;

    // Play default notification sound
    notification.defaults |= Notification.DEFAULT_SOUND;

    // Vibrate if vibrate is enabled
    notification.defaults |= Notification.DEFAULT_VIBRATE;
    notificationManager.notify(0, notification);

}

这是我的 logcat:(没有关于此的错误或警告。)

onReceive: com.google.android.c2dm.intent.REGISTRATION
GCM IntentService class: net.andromedya.GCMIntentService
Acquiring wakelock

Answer 1

您正在使用 "com.google.android.gcm.GCMBroadcastReceiver"为您的广播接收器。该广播接收器期望 Intent 服务类位于您应用程序的主包中，我假设它是 net.andromedya ，但您的意向服务实际上在 net.andromedya.activities 中.

您应该移动您的 GCMIntentService类别为 net.andromedya或覆盖 GCMBroadcastReceiver并指定您的 GCMIntentService 的位置类。

list 中的其他问题:

<uses-permission android:name="net.andromeya.permission.C2D_MESSAGE" />

应该是

<uses-permission android:name="net.andromedya.permission.C2D_MESSAGE" />

并在您的广播接收器声明中:

<category android:name="net.andromedya.activities" />

应该是

<category android:name="net.andromedya" />

请注意，如果您使用的是新版本的 Android，GCM 可以在没有这两个修复的情况下工作，但它不适用于旧版本。