How to handle multiple push notifications received when an iOS application is in FOREGROUND using iOS 6+

In my iOS application, the server sends push notifications for several types. Now let's say that my application is in the foreground and the user is using my application. If the server sends several push notifications to this user at once, how can I show and process these push notifications?

I was thinking of showing warnings for push notifications, but showing several views, as I have several push notifications. I also need to distinguish between the payload so that I can download the correct information to the user.

Now my questions

1) What is the best way to handle multiple push notifications simultaneously?

2) Is it possible to implement something like a built-in push notification banner? Does Apple Allow This? If so, any link would be helpful.

Thanks in advance.