How to avoid delay in Android GCM messages / change heartbeat

Question

I've been reading many posts regarding a GCM issue that affects some people. It seems that in some devices/routers/carriers the notifications suffer delays. I've experienced this issue with my router: messages came with a lot of delay on WIFI but came instantly when I disabled WIFI and connected to the mobile net.

It seems there is a workaround that can be done from the Android app. Something like increasing the heartbeat that keeps GCM connection alive, or so.

Can anyone tell us what should we do to avoid the delay? How can we keep the connection with GCM from an Android app? A code example (and where and how to use it) would be really helpful.

This post explains the problem. It says that "we could keep the connection alive with a ping every two minutes from the GCM server (which is free)". How can we do that?

Thanks a lot

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The following apps seem to do the trick. Surprisingly, the first one doesn't need any permission, the second one internet connection and the third one is only for rooted phones:

https://play.google.com/store/apps/details?id=at.pansy.droid.gcmWifiFix

https://play.google.com/store/apps/details?id=com.elotro.pushheartbeat

https://play.google.com/store/apps/details?id=com.andqlimax.pushfixer

Answer 1

I would put this as a comment in the first answer but I don't have enough reputation.

I had a similar issue and I solved it executing the code below before calling my webservice.

context.sendBroadcast(new Intent("com.google.android.intent.action.GTALK_HEARTBEAT"));
context.sendBroadcast(new Intent("com.google.android.intent.action.MCS_HEARTBEAT"));

Hope it help you!

Answer 2

There's no need to send the heartbeat from the GCM server to the phone, you can force android itself to send the heartbeat sooner that it would otherwise do.

I had a look at the Push Notifications Fixer app, which I tested and worked for me, and it seems all you need to do is broadcast the following intents:

com.google.android.intent.action.MCS_HEARTBEAT
com.google.android.intent.action.GTALK_HEARTBEAT

I'm not sure why it's sending both, you can try only one and see if it does the trick. Here's the link to the app (I'm not the developer): https://play.google.com/store/apps/details?id=com.andqlimax.pushfixer.noroot