Preventing every push notification being executed iOS titanium - ios

Question

If I get multiple push notifications whilst app is in foreground. The callback method will execute every push notification one by one.
callback : function(e) {
if (e.inBackground == 1) {
//came from background - do something.
} else {
// Titanium.UI.iPhone.setAppBadge(null);
//check type, if it is chat.
if (type == 'chat') {
//check if window is already opened or not, if so fire event handler
if (currentWindow == '_chatWindow') {
//update view directly after entering app from the background. Fire event handler
Ti.App.fireEvent('_updateChat', {});
} else if (currentWindow == '_messages') {
//refresh messages screen if on messages screen and chat message arrives
//update view directly after entering app from the background. Fire event handler
Ti.App.fireEvent('_updateMessages', {});
} else {
//display local notification
}
}
If the push notification has come from the background it is easy to deal with, as the push notification that is activated is the one the user chooses to swipe. However, if multiple push notifications come into the foreground and say it's chat, it will execute them multiple times.
How can I handle push notifications in the foreground better? Thanks
Update:
tried this code without much luck
Ti.App.addEventListener('_displayNotification', function(e) {
//store all push notifications in array
var pushArray = [];
var countPushNotifications;
//currentTime to cross reference
var currentTime = new Date();
if (currentTime - Alloy.Globals.pushTime < 3000) {
//do something
pushArray.add(e.PushNotificationData);
} else {
//after 3 seconds remove event handler
//fire event to filter array and process notification, reset time for next event
Alloy.Globals.pushTime = null;
Ti.App.removeEventListener('_displayNotification', {});
}
//first push notification, will be the current time
if(Alloy.Globals.pushTime==null){
Alloy.Globals.pushTime = currentTime;
}
});
Trying to get all the push notifications inside the array, for further filtering.
Update 2:
if (Alloy.Globals.countPushNotificationsFlag == 1) {
Alloy.Globals.countPushNotificationsFlag = null;
setTimeout(function() {
Ti.App.fireEvent('_displayNotification', {
PushMessage : message
});
}, 6000);
} else {
Alloy.Globals.countPushNotificationsFlag = 1;
Ti.App.fireEvent('_displayNotification', {
PushMessage : message
});
}
I have tried to execute push notifications alternatively.
1st notification - fires instantly.
2nd notification - fires after 6 seconds.
3rd notification - instantly.
4th notification - fires after 6 seconds.
and so on...
however the code only works for
notification 1 and 2.
Fails when it hits the 3rd notification.

Answer 1

you can check if Push is received in foreground or background using inBackground Property of push here is the documentation
Hope it helps.

Answer 2

I haven't got the Titanium experience to give you actual code, but this is the approach you need to take:
When you receive a notification, check to see if a (global) boolean receivedNotification is false
If it is false, set it to true, store the event into a global and schedule a setTimeout function for, say, 3 seconds, to process the event and reset receivedNotification to false
If receivedNotification is true, update the global event to the newer notification
In the process event method that is triggered via the timer your will do what you currently do in the first section of code.
This will ensure that the event is processed no longer than 3 seconds after it is received and that events will be processed, at most, once every three seconds.
Your code looks pretty close, except you are trying to fire the first event immediately and then subsequent events after a delay. Unfortunately I don't believe that this is possible, because you have no way of seeing if there are events queued immediately. I think that you are always going to have to incur the delay, but you can tune the delay to find a balance between responsiveness and reduced API calls -
if (Alloy.Globals.countPushNotificationsFlag == null) {
Alloy.Globals.countPushNotificationsFlag = 1;
Alloy.Globals.messageToPush=message;
setTimeout(function() {
Alloy.Globals.countPushNotificationsFlag = null;
Ti.App.fireEvent('_displayNotification', {
PushMessage : Alloy.Globals.messageToPush
});
}, 3000);
}
else {
Alloy.Globals.messageToPush=message;
}