Push notification while app is open in foreground

[Hannah R]

Hi everyone,

Is there a way to implement push notifications the way so it'll be displayed while app is running in foreground? 
If no, are you planning on adding this feature? 

Thank you.

[Marisole Aromatherapy]

Hi Hannah,

I can only speak for myself. You can schedule a local notification the moment you receive a push notification in the fg. That local notification will then be displayed. I usually schedule it for +200ms from current time

This way you can also add a custom action to that local notification

Javier

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[Hannah R]

Javier, 

That sounds like a good solution. Thank you. 

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Regards,

Hannah Ryzhuk

[Marisole Aromatherapy]

You're welcome

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[Hannah R]

Is LocalNotification not supported on simulator?  Or it cannot be displayed on application's foreground too? 
Because I wrote a code but the simulator is not displaying local notifications in foreground. It shows only if app is paused, same as push notifications. 

[Shai Almog]

Push notification works in the foreground just fine. The push() method callback is invoked when you're in the foreground but we don't add the notification to the pull down as this behavior isn't consistent across platforms.

I would suggest showing a toastbar message when a push method arrives and the app is in the foreground. That would reduce clutter in the hidden pulldown UI and would increase user interaction.

[Hannah R]

Shai, Ok, I hear your point.

Toastbar works great. Thank you. 

[Marisole Aromatherapy]

I believe Steve just added fg local notifications on iOS. So it is now possible to show fg notifications also on iOS. Pls correct me if I am wrong

Toastbar is great but unless users are 100% focused on the app you run the risk of losing the user's attention since it shows for a limited time

If you instead schedule a notif the user is forced to see it/ discard it. Toastbar might be enough, just saying..

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[Hannah R]

I faced another question about implementing Toastbar for the push notification on iOS.

The problem is that when the push() method is called, the display is always in foreground. Therefore, when you receive the push notification while the app is in background, and then click the notification - when the app opens into foreground, it shows the toastbar as well. It shouldn't - toastbar must be shown only if the app was in foreground at the moment of receiving of push. 

I tried checking the app state by adding Display.getInstance().isMinimized() statement and I keep a value in Preferences which is set to show toast when the start() method is called and not to show toast when the stop() method is called. 

To compare, the order of methods in Android is following:
-> Click on push notification in the notification drawer (because the preference is set to background it shows the notification) ->  

-> App calls push() and shows me the form that I want it to show - >

-> App calls start() and the Preference is getting set to foreground (show me a toastbar in the future). 
As a result, Android has the proper behavior when I click on the push notification. 

iOS logic is reversed -  when you press the notification, 
-> App calls start(), and then
-> App calls push() . 
So when app gets to the push method, it always thinks that the app was previously in a foreground. 


I'll appreciate any suggestions. Thank you! 

[Shai Almog]

We don't have a way to distinguish that and I'm not sure we have a way of making that distinction. You can check if start() was invoked recently by saving the time it was invoked then avoid the toastbar since the app just loaded. It's a bit of a hack but I'm not sure if there's a better way.

[Hannah R]

Thank you, Shai. 
Good to know.