How to scroll last item on RecyclerView to the top position? - android

I apologize beforehand, I do not have any code examples as I am completely in the dark for the solution to my problem. I want to know, how can I scroll the last item of a list to the top position of the recycler view?
By default, if all items are displaying, and scrolling is not necessary, then you can no longer scroll to see more items. The conflict with this is that I am updating information on a separate view based upon the top most item.
Any ideas for this? The only thing I could think of was to add arbitrary, fake empty data so that I can continue scrolling. Thanks in advance
UPDATE: The best alternative solution other than dummy data is to add padding to the RecyclerView. If I add paddingBottom, you do not see the empty space until you scroll to the last item. But the padding has to be precise to force the last item to the top position. So even this is flawed.
<android.support.v7.widget.RecyclerView
android:clipToPadding="false"
android:paddingBottom="300dp"
android:id="#+id/rv_data"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="#null"
android:scrollingCache="false"/>

Ok, I was able to get this to work. First I measure the size of the item in the adapter in onBindViewHolder
holder.llWrapper.measure(0,0);
I getMeasuredHeight() from that and pass that back from my Adapter to my Fragment. I then measure the recycler view height. I subtract the height of the recyclerview and the item and the remainder is the amount of padding I need to set bottom to the recyclerview
rv.setPadding(0,0,0,padding);
This is the best I can come up with. Cheers!

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How to go past the last item in a recycle view when scrolling up

I have a recycleview that I like to go past the last element when I scroll up. The reason I need to do this is that I have a floating button that if I don't go past the last item, the floating button covers the right part of the last item. I have seen this done in apps such as WhatsApp (see screenshot).
My approach has been to add two empty items to the end of my list and then set visibility of views based on if the items are empty or not. I feel this is more a hack and I was wondering if there is a better way around this.
Below is a screen shot from WhatsApp where at the end of the list, the list scrolls further.
Thanks in advance
There is not need to add two blank items to recyclerview. It may introduce bugs as well while adding new items to the recyclerview. You just need to provide paddingBottom to the recyclerview equal to the height of floating action button and set clipToPadding = false to the recyclerview.

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I created a sample app with this functionality and here is code.
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It should end up looking like
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thank you
So if I understand you correctly, you want a 'pager', sort of like, you scroll page per page instead of inbetween every item, right?
I'm using a Horizontal Pager at the moment, it uses a GroupView and measures the scroll amount to snap to the next view in the pager. Perhaps you could write your own GroupView as well calculating the scroll Y values to snap to the next page..
It's not going to be easy, but it's the only way I can think of.
You could look up Horizontal Pager on google and look at the code, and implement it for vertical paging :)

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