Question

我已经完全按照本教程中的说明为Android实现了Google GCM： http://developer.android.com/google/gcm/client.html

发送消息时，BroadcastReceiver捕获Intent并调用GcmIntentService类：

public class GcmBroadcastReceiver extends WakefulBroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {

        // Explicitly specify that GcmIntentService will handle the intent.
        ComponentName comp = new ComponentName(context.getPackageName(), GcmIntentService.class.getName());

        // Start the service, keeping the device awake while it is launching.
        startWakefulService(context, (intent.setComponent(comp)));
        setResultCode(Activity.RESULT_OK);

    }
}

但是在'sendNotification'方法中（在Service类中），“msg”不是我发送的消息，而是类似于：

Bundle[{android.support.content.wakelockid=1, collapse_key=do_not_collapse, from=153438952475}]

我的服务：

public class GcmIntentService extends IntentService {

    public static final int NOTIFICATION_ID = 1;
    public NotificationCompat.Builder builder;
    private String TAG = this.getClass().getSimpleName();

    public GcmIntentService() {
        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()) {

            if (GoogleCloudMessaging.MESSAGE_TYPE_SEND_ERROR.equals(messageType)) {
                Log.e(TAG,"GoogleCloudMessaging: error: "+ extras.toString());
            } else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED.equals(messageType)) {
                Log.e(TAG,"GoogleCloudMessaging: deleted: "+ extras.toString());                
            } else if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType)) {
                sendNotification(extras.toString());
            }

        }

        // Release the wake lock provided by the WakefulBroadcastReceiver.
        GcmBroadcastReceiver.completeWakefulIntent(intent);
    }


    private void sendNotification(String msg) {     
        GcmResult gcm = GcmResult.getGcm(msg);      
        GcmResultAsync async = new GcmResultAsync();
        async.setInfo(getApplicationContext(),gcm );
        async.execute();        
    }
}

顺便提一下，所有权限都存在。

感谢您阅读！

Answer 1

Google的例子有点误导，因为它将所有额外内容归为一类。确切地说，如何从捆绑中获取消息取决于您如何发送消息。无论您使用哪种方法，都需要您在客户端中输入 '额外' 。

假设您使用PHP发送，那么您的数据块可能看起来像：

$fields = array(
           'registration_ids' => $registrationIDs,
             'data' => array( "message" => $message,
                              "moredata" => $morestuff),
             'delay_while_idle'=> false,
             'time_to_live' => 86400,
             'collapse_key'=>"".$randomNum.""
            );

其中'message'和'moredata'是我发明的键。要在客户端中提取值，您需要：

if (intent.hasExtra("message")) {
  String theMessage = intent.getStringExtra("message");
}

和

if (intent.hasExtra("moredata")) {
  String moreData = intent.getStringExtra("moredata");
}

您应该能够翻译此代码以使用您自己的键/值对。

Android GCM：消息问题

1 个答案: