Silent background push on iOS and Android
<p>I am using GCM to deliver notifications to Android and iOS devices.
What I am looking for is to send in the same downstream message a silent push for both platforms.
I have tried with this message</p>

<pre><code>"content_available":true,
"data": 
{
    //My data here       
},
</code></pre>

<p>As you can see, no notification key is sended, iOS works fine and we are receiving push in the background but Android shows my app icon at the top bar and it is not calling the GCM receiver.</p>

<p>If I set content_available to false, Android works fine but not in iOS (either background or foreground).</p>

<p>What I supposed to do? Send to my server the OS of each device and send a different message for each system?</p>

<p>I have also tried to set aps dictionary in data payload, but still the same.</p>

<p>Thanks in advance.</p>