SOLVED: (Parse + Android) Nothing happens when app is in background...

[uksz]

Hey!
I have an issue with the plugin. When I am in the app, and I send notification with Parse, I receive an alert with the message (this works as intended). However, when app is in the background, nothing displays on the phone. Here is how I use plugin, and how I handle notifications:

var gmcId = "xxxxxxx";
var androidConfig = {
  senderID: gmcId
};

document.addEventListener("deviceready", function(){
  $cordovaPush.register(androidConfig).then(function(result) {
    console.log("result: " + result);
  }, function(err) {
    // Error
  })

  $rootScope.$on('$cordovaPush:notificationReceived', function(event, e) {


    switch( e.event )
    {
      case 'registered':
        if ( e.regid.length > 0 )
        {

          // Your GCM push server needs to know the regID before it can push to this device
          // here is where you might want to send it the regID for later use.
          console.log("regID = " + e.regid);
        }
        break;

      case 'message':
        // if this flag is set, this notification happened while we were in the foreground.
        // you might want to play a sound to get the user's attention, throw up a dialog, etc.
        if ( e.foreground )
        {


          // if the notification contains a soundname, play it.
          navigator.notification.beep(1);
          alert(e.payload.data.alert)
        }
        else
        {  // otherwise we were launched because the user touched a notification in the notification tray.
          if ( e.coldstart )
          {

          }
          else
          {

            navigator.notification.beep(1);
            alert(e.payload.data.alert)
          }
        }


        break;

      case 'error':
        $("#app-status-ul").append('<li>ERROR -> MSG:' + e.msg + '</li>');
        break;

      default:
        $("#app-status-ul").append('<li>EVENT -> Unknown, an event was received and we do not know what it is</li>');
        break;
    }

  });

}, false);

Thanks!!

Btw, this is the structure of the Parse notification that I receive:

{"collapse_key":"do_not_collapse",
"event":"message",
"foreground":true,
"from":"xxxxxxxxxx",
"payload":{
"data": {"alert":"asdasdas","push_hash":"bff149a0b87f5b0e00d9dd364e9ddaa0"},"push_id":"2iFhVp2R4u","time":"2015-07-21T12:24:09.905Z"}}

Edit:

Here is my AndroidManifest

<?xml version='1.0' encoding='utf-8'?>
<manifest android:hardwareAccelerated="true" android:versionCode="1" android:versionName="0.0.1"     package="com.ionicframework.xxxxxx." xmlns:android="http://schemas.android.com/apk/res/android">
<supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:resizeable="true" android:smallScreens="true" android:xlargeScreens="true" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<application android:hardwareAccelerated="true" android:icon="@drawable/icon" android:label="@string/app_name" android:supportsRtl="true">
    <activity android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale" android:label="@string/activity_name" android:launchMode="singleTop" android:name="MainActivity" android:theme="@android:style/Theme.Black.NoTitleBar" android:windowSoftInputMode="adjustPan">
        <intent-filter android:label="@string/launcher_name">
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:exported="true" android:name="com.plugin.gcm.PushHandlerActivity" />
    <receiver android:name="com.plugin.gcm.CordovaGCMBroadcastReceiver" android:permission="com.google.android.c2dm.permission.SEND">
        <intent-filter>
            <action android:name="com.google.android.c2dm.intent.RECEIVE" />
            <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
            <category android:name="com.ionicframework.xxxxxx." />
        </intent-filter>
    </receiver>
    <service android:name="com.plugin.gcm.GCMIntentService" />
    <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />
</application>
<uses-sdk android:minSdkVersion="10" android:targetSdkVersion="22" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<permission android:name="com.ionicframework.xxxxxx.permission.C2D_MESSAGE" android:protectionLevel="signature" />
<uses-permission android:name="com.ionicframework.xxxxxx.permission.C2D_MESSAGE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

And this is what I get from debuggin when I send push notification and app is in background:

I/GCM     ( 4177): GCM message com.xxxxxx.xxxxxxxx 0:1437489184268058%b9a1ad81f9fd7ecd
V/GCMBroadcastReceiver(22357): onReceive: com.google.android.c2dm.intent.RECEIVE
V/GCMBroadcastReceiver(22357): GCM IntentService class: com.plugin.gcm.GCMIntentService
V/GCMBaseIntentService(22357): Acquiring wakelock
V/GCMBaseIntentService(22357): Intent service name: GCMIntentService-GCMIntentService-8
D/GCMIntentService(22357): onMessage - context: android.app.Application@2b12b79a
V/GCMBaseIntentService(22357): Releasing wakelock

[morfair]

I have same problem. Nothing happens in background.

[morfair]

The page https://developers.google.com/cloud-messaging/server say about two push-message types: Notifications and Data messages. I start with Notifications and didn't get expected result. When I change "notification" to "data" in server-JSON request I get notify in background mode.
But I don't understand difference.

Sorry for my English.

[uksz]

Changing notification to data didnt worked for me... Can you show me how do you handle the notifications when your app is in backgruond? Maybe this part is wrong..

[uksz]

Alright, I think I've moved step forward. Now, when app is in background, I can at least hear the beep form notification. Here is the adb catlog

I/GCM     ( 4170): GCM message com.xxxxxxx.xxxxxx 0:1437503029560661%b9a1ad81f9fd7ecd
V/GCMBroadcastReceiver( 6354): onReceive: com.google.android.c2dm.intent.RECEIVE
V/GCMBroadcastReceiver( 6354): GCM IntentService class: com.plugin.gcm.GCMIntentService
V/GCMBaseIntentService( 6354): Acquiring wakelock
V/GCMBaseIntentService( 6354): Intent service name: GCMIntentService-GCMIntentService-7
D/GCMIntentService( 6354): onMessage - context: android.app.Application@6085382
D/GCMIntentService( 6354): FINDME: log tag to check that code works.
V/PushPlugin( 6354): extrasToJSON:     {"event":"message","from":"763425973806","collapse_key":"do_not_collapse","foreground":true,"payload":{"push_id":"PS64adCUua","data":{"message":"message","push_hash":"d41d8cd98f00b204e9800998ecf8427e","title":"joj"},"time":"2015-07-21T18:23:49.551Z"}}
V/PushPlugin( 6354): sendJavascript: javascript:angular.element(document.querySelector('[ng-   app]')).injector().get('$cordovaPush').onNotification({"event":"message","from":"xxxxxx","collapse  _key":"do_not_collapse","foreground":true,"payload":{"push_id":"PS64adCUua","data":  {"message":"message","push_hash":"d41d8cd98f00b204e9800998ecf8427e","title":"joj"},"time":"2015-07-21T18:23:49.551Z"}})
V/GCMBaseIntentService( 6354): Releasing wakelock

[jdepypere]

For Android you need to put the PushPlugin.sendExtras(extras); from GCMIntentService.java outside of the foreground loop. This methods calls a javascript function, but by default for some reason they put it only in the foreground loop instead of outside of it. There's been a bunch of topics about this on here.

[uksz]

ANSWER:

So, after two days of pulling my hair, I finally managed to to fix the issue. So, the problem is that it doesn't matter how you specify the JSON in Parse, its always send in the form presented above - meaning that what you specify is always in payload->data->'key':'value'. However, the GCMIntentService seeks for a notification, that has "message" in the first layer of the JSON. Meaning, it has to look like that:

 {"collapse_key":"do_not_collapse",
    "event":"message",
    "foreground":true,
    "from":"xxxxxxxxxx",
    "message":"ssadasdasdsa"
......}

You can see that it is specified in the GCMIntentService.java below lines that start
"protected void onMessage" (I think its line 53).

Anyway, you to fix this, we need to change the handling of a notification, when app is not in foreground. We need to change it to:

    @Override
protected void onMessage(Context context, Intent intent) {
    Log.d(TAG, "onMessage - context: " + context);

    // Extract the payload from the message
    Bundle extras = intent.getExtras();
    if (extras != null)
    {
        // if we are in the foreground, just surface the payload, else post it to the statusbar
        if (PushPlugin.isInForeground()) {
            extras.putBoolean("foreground", true);
            PushPlugin.sendExtras(extras);
        }
         else {

         try {
               JSONObject object_example = new JSONObject( extras.getString("data"));
                String message = object_example.getString("alert");
                 extras.putString("message", message);
             } catch (JSONException e) {
                 //some exception handler code.
             }
                       createNotification(context, extras);
        }
    }
}

Here, our code will take into consideration that our notification doesnt have 'message' in first layer of JSON - it will seek it at the data->alert (standard form of the notification from PARSE).

I hope that helps, because I've spend waaay to many days trying to figure it out :).

[bryanmanalo]

@uksz this really helped me. Thanks a lot. So changing code is the only way?
This how I handled it -- just always send PushPlugin.sendExtras(extras).

[uksz]

@bryanmanalo I've tried playing with sendExtras, but it didn't worked for me. In my case, it was an issue with structure of data coming from Prase server, and adjusting the onMessage function.

[rubenstolk]

@uksz rather than changing the issue to SOLVED I would suggest to send a PR because I guess this is a very common issue since lot of people use Parse...

[rubenstolk]

Hereby: #617

[uksz]

@rubenstolk thanks!