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Which Recyclerview or ScrollView should I choose?

I created an activity with a ListView. That is a Friend ListView.
I wanna let it choose to add it to another View.
I don't know which View to choose is the best. Recyclerview or ScrollView?
Like this

Basic difference between RecyclerView and ListView are the below.
ListView is simple to implement. Default Adapters available.
But ViewHolder pattern and finding views using ID's used to give slow performance.
Now in RecyclerView , the above problems are attended using RecyclerView.ViewHolder.
For RecyclerView adapter, this ViewHolder is mandatory. While comparing to list view this is kinda complex, but solves performance issues in ListView.
Difference LayoutManagers are available while using RecyclerView.
LinearLayoutManager
StaggeredGridLayoutManager
GridLayoutManager
Major improvement of RecyclerView performance while comparing to ListView would be this according to developer.android.com
The RecyclerView creates only as many view holders as are needed to
display the on-screen portion of the dynamic content, plus a few
extra. As the user scrolls through the list, the RecyclerView takes
the off-screen views and rebinds them to the data which is scrolling
onto the screen
To sumup, RecyclerView is preferable than ListView (when UI is having same widgets repeating according to your data)
Now when to use ScrollView:
Your UI elements may not show completely in small device screens. But in bigger screen sizes it may!
Elements may not be necessarily only list / grid. It can have combinations of any UI widgets.
Eg:- TextViews vertically , with RadioButton and Button at last for user action.
This cannot be included in ListView/ RecyclerView , now you can add ScrollView which will have a LinearLayout/RelativeLayout . Inside which all other elements can be added.
Now you can

I recommend to user always RecyclerView and never a ListView. Use RecyclerView for element list and scrollview for static views.
Seeing your image Scrollview inside RecyclerView or ListView have problems with drag.
Use a vertical RecyclerView in all page and horizontal RecyclerView each row.

I suggest you to use RecyclerView because you will load lots of images and if you use ScrollView eventually you will use so much memory. Also it is recommended to use RecyclerView when you have dynamic data. You can look the definition of the RecyclerView in the Android Documentation as follow
RecyclerView is a view for efficiently displaying large data sets by
providing a limited window of data items.

You can use nested RecyclerView for creating such hierarchal view.
You can also checkout this example for nested RecyclerView usage.
Also you can further read:
Android Recyclerview vs ListView with Viewholder
RecyclerView vs. ListView
Should we use RecyclerView to replace ListView?
I hope this helps.

Android-Appropriate View For Horizontal & Vertical Scrolling Grid

I am new to Android and looking for advice on which particular view or views to use for an app. I am attempting to create an epg. I have done this on another platform and was wanting to migrate to android. After alot of reading and looking at examples I am little confused. To make a horizontal and vertical scrolling grid, would the gridview alone be enough to display the program titles. I say gridview alone, I mean the gridview in the main activity with a textview in resource xml. If not can somebody point me in the right direction, not asking for code just advice on the best way to go about the project. I am not worried about a channel list or time slot list only displaying the programming title in columns and rows that can scroll both directions. I anticipate the channel list being in a recyclerview separate form the grid. Thanks for advice.

I will suggest you to use cardview. Because gridview will give you 2 dimensional view which is not more customizable. Better you can go with cardview.
For cardview, you need to add dependency. You can use cardview inside recycler view.
GridView - GridView is a ViewGroup that displays items in a two-dimensional, scrollable grid. The grid items are automatically inserted to the layout using a List Adapter. GridViews are particularly useful for displaying images in a structured fashion, for example if you’re designing a gallery app. To populate a GridView with data (whether that’s images, text, or a combination of the two) you’ll need to bind your data to the GridView using a ListAdapter
CardView - To create complex lists and cards with material design styles in your apps, you can use the RecyclerView and CardView widgets. CardView gives you an easy way of displaying data in Google Now-style cards. The Android SDK doesn’t include the CardView class, so you’ll need to add the CardView support library before you can use cards in your project.
To get bettter idea, you can visit this link.

How can i swipe through recyclerview items in a manner similar to a viewpager?

I've been trying to implement a recyclerView to function similar to a ViewPager by displaying one item at a time. I looked at https://github.com/lsjwzh/RecyclerViewPager and found it useful. I basically want to implement a vertical ViewPager using recyclerView wherein each item overlaps over the other during transitions. Should i be looking at inter-item animations? And if so, I would appreciate any help that i could get.
Or should I just stick to a ViewPager? (My apprehensions about ViewPager are that it may be slower than a recyclerView)

You can try this project I did for Udacity Android Nanodegree.
This holds a similar functionallity:
https://github.com/sprengerst/udacity_nanodegree_project_5
There, a Viewerpager is populated by Fragments which are then populated by a Loader.

Google play store like interface using recycler view

My assignment is to create an interface much same like Google Play Store.There will a Category name followed by 3 or 4 cards (horizontal) followed by More button. Then again next category.
I already had implemented this using nesting the horizontal listview inside Vertical listview.
I know, I can achieve this by using the Recycler view with LinearLayoutManager with horizontal orientation. Using this I'll be having one only row.
My question is how do I add 2nd, 3rd row to this?
Should I use again nested Recycler view?
Are there some better options?

Dont use nested listviews (you cant scroll horizontally in play store).
Consider the following options:
You can use a simple LinearLayoutManager and make different view types. For the with 3 cards horizontally use a GridLayout or LinearLayout with same weights. The problem here is, that you have to consider the indexes of your underlying data list used in the adapter
Write your own LayoutManager for RecyclerView
Use TwoWay View which is based on RecyclerView and offers a Spannable Grid Layout manager, which seems to be what you are looking for.

If you inspect the layout of the Google Play app, they do not use a listview/recyclerview for the horizontal cards. I'm pretty sure that is just a linearlayout (horizontal) within a vertical listview / recyclerview.
If you insist on using a horizontal recyclerview for each row, then having a nested recyclerview would be your best option. You can specify a RecycledViewPool so that all the nested recyclerviews share the same pool instead of creating their own.

You may like to do it as one vertical RecyclerView (Main recycler) and for every section you can inflate a horizontal RecyclerView as well (Section recycler) as this blog answer mention:
Also, consider using:
A cache layer for Bitmaps for persistent access through your other store screens
A lazy load method for your category/section images
A place holder before showing new items

Which View/Widget can be used to display images on the screen one at a time by swiping horizontally?

I have a list view in which I want each list item will contain images. But the images will be displayed one at a time. SO, at a time for every list item only one image will be displayed. To view other images in the list item,one has to swipe horizontally. Is there any inbuilt widget that handles this in android?
EDIT1
My List item not only has Image but it also contains other views like textview, seekbar etc. So each list item will contain Image, textview, seekbar etc but the majority of the space will be occupied by the Image. Now, for each list item, when the image is swiped horizontally, another image has to be downloaded from a ulr and displayed.
EDIT2
I did a bit of research on ViewPager but many references like the answers here and this blog seem to suggest that using ViewPager inside a listview is not a good idea. Why is that? If it is not a good idea, what is a good alternative?

This problem can be solved by using ViewPager.
Link: http://developer.android.com/training/animation/screen-slide.html

ViewPager(for swiping between views) + UniversalImageLoader(for loading images from URLs, with caching etc)

If it is not, what is a good alternative?
I think you should use RecyclerView with LinearLayoutManager.HORIZONTAL. All things like recycling the views, view holder design pattern can be done easily with it and it is a new widget that google introduced and you can use it instead of ListView + ViewPager. because as you suggested it is not recommended to use viewpager inside listview. Although you can use horizontalScrollView but it dose not recycle the view. Other third party library like this exist but I recommend you use RecyclerView with LinearLayoutManager.HORIZONTAL because it is from google and it is normally tested more than people library. And another thing is you can use other layout manager like GridLayoutManager or having for example 3 rows that swiping horizontally or other good effects like adding animation and .... that google provided with RecyclerView.
For downloading the images you can use Picasso,Volley, Universal Image Loader or a lot of other libraries that exist.
Happy Coding :-)

Not sure I'm following you, but rather than a ListView wouldn't it be simpler to use ViewPager with simple Fragment that wraps a single image at a time. That way you get horizontal swiping "for free".

Do you just want swipe to change images? Or do you want the images to scroll as you swipe? For the former, you can just use a GestureDetector. For the latter you would probably use a ViewPager. See http://developer.android.com/training/animation/screen-slide.html

I have achieved the same functionality by using ViewPager, you can either put the SeekBar and TextView in the Fragment class off which you are gonna make multiple instances for each item and add to the pageradapter,
You can also add the TextView and SeekBar above the ViewPager Layout in your main fragment layout file and change the text and data on seekbar on viewpager's on item change listener, this looks more neat and this is the approach i've used