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How to add multiple scrollable views dynamically in android

I want to achieve this design shown below. All I can think of is having a LinearLayout as parent layout with android:orientation="vertical" and add listViews with horizontal scroll dynamically inside the linear layout, but it seems very inefficient solution.
What can be the best possible approach to achieve this UI? Any suggestion will be highly appreciated.

If I were you, I will create a RecyclerView witch adds the rows of the Textview and another recyclerview.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="#+id/tvTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rvCards"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
The second recyclerview will contains columns of those cards. Of course the second recyclerview will contain the LinearLayoutManager like that:
LinearLayoutManager linearLayoutManager
= new LinearLayoutManager(requireContext(), LinearLayoutManager.HORIZONTAL, false);
I'm not sure if that solution will be the most efficient one. I would like to read more comments to find a better solution, if it exists.

Show a horizontally large background in back of Recyclerview

I have a background image with a long width which I want to be in back of a Recyclerview with 8 item in it(Recyclerview). This is possible only with a horizontal-scrollview which I coded below but Is there any way to not use horizontal scrollview and have a same result?
<HorizontalScrollView
android:id="#+id/HSV"
android:layout_width="wrap_content"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="#drawable/back"
android:paddingLeft="2.5dp"
android:paddingRight="2.5dp"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
</HorizontalScrollView>
with the above code I have the desired output, but as I remove the HorizontalScrollView The image is compressing in width and loose its shape I want the image scroll as I scroll the recyclerview
That is The picture I want:
![in Background is the aforementioned image and this eight Item are in recycler view and I want as the items finishing the background image is finishing too.
]1

Design like this in layout.And pass layout of card in image to adapter in Android.Set background to Constraint layout ore Recyclerview. When you have Recyclerview no need to add Horizontal Scrollview. Just pass Layout manager as Horizontal
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:background="#color/secondaryColor"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"/>
</androidx.constraintlayout.widget.ConstraintLayout>idget.ConstraintLayout>

I wonder if I have got your query right, so you want your RecyclerView to be scrolling horizontally. I would suggest to use the LinearLayoutManager for the same, so that you can pass the Scrolling constant to Horizontal in the arguments of LinearLayoutManager.
To read about it, please go ahead and read it LinearLayoutManager
And when you get it, just do it like this in you Java Class.
RecyclerView.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, true));
I have this youtube link for you too, if you don't get it what you want. Here you will get the full demo of how to do it, and achieve it. Horizontal RecyclerView
I hope that will answer your query. Thanks :)

RecyclerView (wrap_content) inside of a BottomSheetDialogFragment

I'm facing a tricky situation here and I don't know how to solve this problem.
In my project I have a custom BottomSheetDialogFragment and in the layout a FrameLayout to add or replace Fragments.
Now I have a Fragment and inside I have a RecyclerView with the height:="wrap_content" because I want the BottomSheetDialogFragment only use the necessary space. Everything looks great, the problem appear when I put another view inside of the same layout and set the RecyclerView bellow or above of that view.
The RecyclerView ignores the size of the other view (or views) and always grows to the max screen size, and then it's no possible to see a few elements and even scroll.
I saw a solution, some developers are suggesting to add paddingBottom equals to the height of the view. But in my case doesn't works because I want to have a dynamic solution.
Above I'll share a few images of the problem and GitHub Repository with a sample.
Thanks for your attention!

I've manage to do what you need just need to use this as your fragment_sample.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="#+id/rclItems"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
app:layoutManager="android.support.v7.widget.LinearLayoutManager"/>
<Button
android:id="#+id/btnAddMoreItems"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/rclItems"
android:text="#string/add_1_item"/>
</LinearLayout>
Explanation
Using a LinearLayout gives you the ability to work with weight, and the vertical orientation allows you to place an item below the other. The weight on the recyclerview will increase the height of it as needed until filling the screen. The next item you add would be added to the recyclerview but you'll need to scroll the list to see it

The android developers blog says that :-
The scrolling containers in your bottom sheet must support nested scrolling .
Try changing your fragment_sample.xml as below to make the recyclerview scroll working and to make the add button persistent.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:id="#+id/next"
android:layout_above="#id/btnAddMoreItems"
android:layout_height="wrap_content">
<android.support.v7.widget.RecyclerView
android:id="#+id/rclItems"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</android.support.v4.widget.NestedScrollView>
<Button
android:id="#+id/btnAddMoreItems"
android:layout_width="match_parent"
android:layout_alignParentBottom="true"
android:layout_height="wrap_content"
android:text="#string/add_1_item"/>
</RelativeLayout>
Note: making bottomsheet layout a child view of CoordinatorLayout will allow you to get the implement BottomSheetBehavior and recieve its transitions callbacks .

RecyclerView jumps directly to top when scrolling up when its item's height is wrap_content

Here are the xml files
A Fragment with a Recyclerview:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/list_photos"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ui.photos.PhotosFragment"
tools:listItem="#layout/card_photo">
</android.support.v7.widget.RecyclerView>
Layout for each item in the above Recyclerview
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/card_photo"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/photo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:adjustViewBounds="true"
android:scaleType="fitCenter"
tools:src="#drawable/placeholder_photo_item" />
</android.support.v7.widget.CardView>
And it looks like this:
As you can see, it won't load fast and smooth as I scroll. It stops scrolling at some items.
Also when I scroll up, it directly jumps to the top item.
Below is the perfect smooth and fast scrolling effect of a RecyclerView, which I am able to achieve by making the Recyclerview's item's (here CardView) height to "match_parent".
But this is not how I want the list to look like. The list should have images of variable length with no blank spaces between them.

I am using Glide to load the images, and adding a placeholder through Glide fixed it:
GlideApp.with(mContext)
.load(url)
.placeholder(R.color.placeholder)
.into(holder.photo);
Now the RecyclerView scrolls smoothly and won't jump to the first item on up-scroll.
Although it's been fixed I really do not know why RecyclerView behaves in this way.

how to show listview in horizontal MergeAdapter in android

Now i going on with the MergeAdapter to show the list of data in vertical view and successfully showed it.Now what i need to show it in MergeAdapter horizontal list and also search a lot for MergeAdapter horizontal listview.
Is it possible to show listview in MergeAdapter horizontal view if there please help me.
Should achieve this by MergeAdapter horizontal listview.

There is no supported horizontal listView in android. I have no idea about MArgeAdapter but if you want to use Horizontal you need to constructer a xml like that
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingLeft="#dimen/paddingLeft"
android:paddingTop="#dimen/paddingRight" >
<HorizontalScrollView
android:id="#+id/horizontalScrollView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="#dimen/paddingTop">
<LinearLayout
android:id="#+id/scrollViewContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
</LinearLayout>
</HorizontalScrollView>
</LinearLayout>
and add views inside scrollViewContainer. Also check this How can I make a horizontal ListView in Android?

MergeAdapter has nothing to do with being vertical or horizontal. MergeAdapter is just an Adapter. The visual representation of the collection is up to the AdapterView, which can do scrolling vertically, horizontally, bi-directionally, diagonally, or not have scrolling at all.
So, find yourself an AdapterView that can serve as a horizontal ListView. Or, use RecyclerView for the horizontal-scrolling list and handle your merging by some other means.