Android GCM: not sending notification when device is idle.

问题

GCM notifications are not being received when my device is idle. They all come through at once when the device is woken up. Here is the code that sends the message to GCM:

Sender sender = new Sender(API_KEY);
Message message = new Message.Builder().addData("type","newRequest").delayWhileIdle(false).build();
MulticastResult results = sender.send(message, devices, 5);

Here is my GCMIntentService class:

public class GCMIntentService extends GCMBaseIntentService{

public static final String SENDER_ID = "XXXXXXXXXXXXX";

public GCMIntentService(){
    super(SENDER_ID);
}

@Override
protected void onError(Context context, String errorId) {
    // TODO Auto-generated method stub
}

@Override
protected void onMessage(Context context, Intent intent) {
    // TODO Auto-generated method stub
    WakeLocker.acquire(context);
    NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    long when = System.currentTimeMillis();
    int icon = R.drawable.ic_dialog_info;

    Intent notificationIntent = new Intent(this, MainActivity.class);
    PendingIntent contentIntent = PendingIntent.getActivity(this,0, notificationIntent, 0);
    Notification noti = new NotificationCompat.Builder(this)
            .setWhen(when).setContentTitle("New Storage Request")
            .setContentText("Touch to open app")
            .setSmallIcon(icon)
            .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
            .setTicker("New Storage Request").setAutoCancel(true)
            .setContentIntent(contentIntent)
            .getNotification();

    mNotificationManager.notify(0, noti);
}

@Override
protected void onRegistered(Context context, String regId) {
    // TODO Auto-generated method stub

    RestClient client = new RestClient(StorageApp.STORAGE_HOST+"StorageWebService/rest/operations/registerForGCM");
    client.AddParam("regId", regId);

    try {
        client.Execute(RequestMethod.GET);
    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    System.out.println("done with call");
}

@Override
protected void onUnregistered(Context context, String regId) {
    // TODO Auto-generated method stub
    RestClient client = new RestClient(StorageApp.STORAGE_HOST+"StorageWebService/rest/operations/unregisterForGCM");
    client.AddParam("regId", regId);

    try {
        client.Execute(RequestMethod.GET);
    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

}

WakeLocker is the code described in this answer:

android AlarmManager not waking phone up

回答1:

GCM can only deliver messages to devices that are in sleep mode if the device has mobile data connectivity, such as a phone. For WiFi-only devices, if the device falls asleep, GCM messages will not be delivered until something wakes up the device, long enough that the device elects to reconnect to WiFi.

回答2:

In server side code please check the value you are passing in delayWhileIdle() method. make it false. It will work.

回答3:

For Marshmallow please look at this:

https://developer.android.com/training/monitoring-device-state/doze-standby.html#using_gcm

GCM is optimized to work with Doze and App Standby idle modes by means of high-priority GCM messages.

来源：https://stackoverflow.com/questions/17153660/android-gcm-not-sending-notification-when-device-is-idle

标签

android

push-notification

google-cloud-messaging