How to set max height to scrollView?

How to set max height to scrollView? - android

How can I set maxHeight property for scrollView?
I have a LinearLayout and I add some view (rows) to this layout programmatically. How can I show scroll when rows reach maxHeight of scrollView? ScrollView is located in a CardView
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/textViewTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.cardview.widget.CardView
android:id="#+id/cardView"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constrainedHeight="true"
app:layout_constraintBottom_toTopOf="#+id/cardView2"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_max="100dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textViewTitle">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="#+id/linear"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" />
</ScrollView>
</androidx.cardview.widget.CardView>
</androidx.constraintlayout.widget.ConstraintLayout>

Because you're using ConstraintLayout you need to add 2 constraints to your CardView
app:layout_constraintTop
app:layout_constraintBotttom
And you also need to add the following lines
app:layout_constrainedHeight="true"
app:layout_constraintHeight_max="300dp" // Change this to your maximum height
It should look something like this
<androidx.cardview.widget.CardView
android:layout_width="0dp"
android:layout_height="wrap_content"
app:cardCornerRadius="#dimen/card_radius_10"
app:layout_constrainedHeight="true"
app:layout_constraintHeight_max="300dp" // Change this to your maximum height
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toBottomOf="parent" //Change based on your layout
app:layout_constraintTop_toTopOf="parent"> //Change based on your layout

use this attribute in your ScrollView and change the LinearLayout height to match_parent
android:fillViewport="true"
like this
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<LinearLayout
android:id="#+id/layout" android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" />
</ScrollView>

Change the height of parent View of your scroleView. In your case, CardView is Parent layout.so set the height of CardView like
android:layout_height="350dp"
or use the weight according to your need by using linear layout in the parent of CardView. if you are using this layout in the Adapter or something like that then you only set the height with numbers.

Related

How should I set size dialog in Android?

I am traiyng to write a scrolling dialog layout. As the main element I'm using ScrollView and in it there is a ConstraintLayout that contains the displayed items. The size of the ScrollView has a fixed value but I would like the width of ConstraintLayout to be match_parent and the height to be wrap_content. When I set the width to match_parent and the height is wrap_content the dialog isn't displayed in the fragment. However, if I set the width as a constant value such as the ScrollView size and set height as warp_content the dialog appears. Should I nest the layouts somehow different or what?
Here is my code:
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="700dp"
android:layout_height="400dp"
android:background="#color/main_blue"
android:fadeScrollbars="false"
android:fillViewport="true"
android:scrollbarAlwaysDrawVerticalTrack="true"
android:scrollbarFadeDuration="0"
android:scrollbarThumbVertical="#drawable/thumb_dialog"
android:scrollbarTrackVertical="#drawable/track_dialog">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="700dp"
android:layout_height="wrap_content">
<TextView
android:id="#+id/dialogTitle"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginStart="#dimen/margin_xxxxlarge"
android:layout_marginTop="#dimen/margin_xxxxlarge"
android:layout_marginEnd="#dimen/margin_xxxxlarge"
android:text="#string/dialog_title"
android:textAllCaps="true"
android:textColor="#color/main_red"
android:textSize="#dimen/text_size_xl"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/dialogDescription"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginStart="#dimen/margin_xxxxlarge"
android:layout_marginTop="#dimen/margin_xxxxlarge"
android:layout_marginEnd="#dimen/margin_xxxxlarge"
android:text="#string/dialog_message"
android:textSize="#dimen/text_size_m"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/dialogTitle" />
<Button
android:id="#+id/agreeButton"
style="#style/RedButton"
android:layout_width="188dp"
android:layout_height="49dp"
android:layout_marginTop="#dimen/margin_xxxxlarge"
android:layout_marginBottom="#dimen/margin_xxxxlarge"
android:background="#drawable/red_button"
android:text="#string/dialog_button_text"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="#+id/dialogTitle"
app:layout_constraintTop_toBottomOf="#+id/dialogDescription" />
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>
Layout blueprint:

ConstraintLayout & FrameLayout wrap_content then FrameLayout show half content

I don't known why FrameLayout inside ConstraintLayout, and both use wrap_content, then the last item in the RecycleView just show half content.
If I remove FrameLayout, direct use recycleview, it can work!
<?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:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/finance_bg_book_list_dialog">
<TextView
android:id="#+id/tvToolbarTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/finance_bg_book_list_toolbar"
android:drawablePadding="10dp"
android:padding="14dp"
android:text="#string/finance_book"
android:textColor="#android:color/white"
android:textSize="?fontSizeLarge"
app:drawableStartCompat="#drawable/finance_ic_toolbar_shelf"
app:layout_constraintBottom_toTopOf="#+id/vulturLayout"
app:layout_constraintTop_toTopOf="parent"/>
<FrameLayout
android:id="#+id/vulturLayout"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constrainedHeight="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/tvToolbarTitle">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_contentCode="successful"/>
</FrameLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

You need some horizontal constraints on your textview.
ex : app:layout_constraintStart_toStartOf=

I recommend you set a dimension for the RecyclerView height. if you use the FrameLayout with a wrap_content height, your RecyclerView will not be scrollable and it will own show half the item at the last based on the screen size

Auto-fit items in Linear layout

I have two constraint layouts in a linear layout. I want the constraint layouts to occupy 30% and 70% of the screen respectively on all devices. What attribute inside the Linear Layout do I need to set in order to achieve this?

This should give the desired result. Setting a weightSum attribute to the parent linear layout and then accordingly giving the weights helps
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="1" >
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.3"/>
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.7"/>
</LinearLayout>

You have to take Parent Layout as ConstraintLayout and then after you have to use GuideLine to set 30 and 70 percent of screen.
<?xml version="1.0" encoding="utf-8"?><?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.constraintlayout.widget.Guideline
android:id="#+id/guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.3" />
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="0dp"
android:layout_height="0dp"
android:background="#android:color/holo_green_light"
app:layout_constraintBottom_toTopOf="#+id/guideline"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="0dp"
android:layout_height="0dp"
android:background="#android:color/darker_gray"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/guideline" />
</androidx.constraintlayout.widget.ConstraintLayout>
Output

Use WeightSum attribute on LinearLayout to achieve the Output you are expecting, Which is more easier than other methods.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="3" >
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="3">
//Child layouts on 30% of layout
</android.support.constraint.ConstraintLayout>
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="7">
//Child layouts on 70% of layout
</android.support.constraint.ConstraintLayout>

If you want make something like that use
android:layout_weight="any number"
but you must make the same height for the both of them it doesn't matter if the height wrap_content or match_parent
The layout will occupy more form screen if the number less than the other one

Android recyclerview Animation not working with constraint layout

I am applying recyclerview animation from this link
enter-animation-using-recyclerview-and-layoutanimation
but the only change is my recyclerview is inside constraint layout where I need to set height as 0dp for relating views when I set heights as wrap_content or match_parent animation working good.
My XML code
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/ivBanner"
android:layout_width="0dp"
android:layout_height="200dp"
android:scaleType="centerCrop"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/ic_img" />
<android.support.v7.widget.RecyclerView
android:id="#+id/rvList"
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
android:layoutAnimation="#anim/layout_animation_from_bottom"
app:layout_constraintTop_toBottomOf="#id/ivBanner" />
</android.support.constraint.ConstraintLayout>
In recyclerview android:layout_height="0dp" I set as match_parent or wrap_content animation is working good so there is no issue with the layout_animation_from_bottom Thank you in advance :)

Scrollview inside constraint layout does not scroll to the bottom of the parent constraint

I have a form which has around 12/13 fields. I used a Scrollview inside a constraint layout. Below is the hierarchy of the XML layout. The problem is, it doesn't scroll to the bottom instead scrolls only to the first initial 10 views. The last 3 fields gets hidden as the view does not scroll any further.
PARENT LAYOUT
<android.support.constraint.ConstraintLayout 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:id="#+id/activity_register"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:focusableInTouchMode="true"
android:orientation="vertical">
<!-- Textview and a button -->
<ScrollView
android:id="#+id/scrollView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:layout_marginTop="10dp"
android:orientation="vertical"
android:overScrollMode="never"
android:scrollbars="none"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/view"
tools:layout_constraintBottom_creator="1"
tools:layout_constraintLeft_creator="1"
tools:layout_constraintRight_creator="1"
tools:layout_constraintTop_creator="1"
tools:layout_editor_absoluteX="0dp"
tools:layout_editor_absoluteY="0dp">
<android.support.constraint.ConstraintLayout
android:id="#+id/constraintLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<!-- Child Views (12/13 views of the fields)-->
</android.support.constraint.ConstraintLayout>
</ScrollView>
</android.support.constraint.ConstraintLayout>

This layout works in my app.
The trick is to set these two attributes in ScrollView:
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
The simplified layout from my app:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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:theme="#style/ThemeOverlay.AppCompat.Light">
<RelativeLayout
android:id="#+id/linear"
android:layout_width="0dp"
android:layout_height="56dp"
android:background="#color/title"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ScrollView
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#id/linear">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/titleView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:text="#string/title"
android:textSize="14sp"
app:layout_constraintBaseline_toBaselineOf="#+id/title"
app:layout_constraintLeft_toLeftOf="parent" />
<EditText
android:id="#+id/title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:hint="toilet title"
android:inputType="text"
android:textColor="#android:color/holo_red_dark"
android:textSize="12sp"
app:layout_constraintLeft_toLeftOf="#+id/open_hour"
app:layout_constraintLeft_toRightOf="#+id/titleView"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
...
Other Views in ScrollView
...
</android.support.constraint.ConstraintLayout>
</ScrollView>
</android.support.constraint.ConstraintLayout>

In my case NestedScrollView worked instead of ScrollView. Following is the snippet of my working layout:
<android.support.constraint.ConstraintLayout 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">
<!-- Some Views Here -->
<android.support.v4.widget.NestedScrollView
android:layout_width="0dp"
android:layout_height="0dp"
android:fillViewport="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/view">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<!-- Some Views That can be Scrolled Here -->
</android.support.constraint.ConstraintLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.constraint.ConstraintLayout>

You have two solutions for this problem (the same solution but in two ways to do it):
If you put the Design mode in Android Studio, select your ScrollView and open attributes tab and in the layout_height, select "match_constraint".
If you use the Text mode in Android Studio, use this:
<ScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="#id/tb_details">
See that the ScrollView height is set to 0dp. Both of this ways resolve the same problem but these are the different ways to do it.
The ScrollView is not the root view, I have a Constraint layout wrapping the ScrollView as you.

Two Steps
Keep layout height for scroll view zero
android:layout_height="0dp"
Again for scroll view
android:fillViewport="true"

Try adding bottom constraint to scrollview (eg: app:layout_constraintBottom_toBottomOf="parent")
and change android:layout_height="wrap_content" to android:layout_height="0dp"

In my case NestedScrollView worked instead of ScrollView.
Following is the snippet of my working layout:
Please make sure that you haven't make any childview height to match parent(0 dp) inside constrianlayout also for scroll view android:fillViewport="true;
Ask me if any doubt Occur.
<android.support.v4.widget.NestedScrollView
android:id="#+id/scroll_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="#dimen/_90sdp"
android:fillViewport="true">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:id="#+id/cvLayout"
android:animateLayoutChanges="true">

Just Put android:fillViewport="true" in Parent Layout

In my case, I had a tall TextView (height set to wrap_content) inside a ScrollView (height set to 0dp and being constraint on the top and bottom). No suggestions worked, but I solved the problem by wrapping the TextView inside a FrameLayout (height set to wrap_content).

Never keep 0dp height of childs of ConstraintLayout if it is inside SV/NestedSV
wrap_content works because in this case ScrollView knows its childens height.

For me, I needed to add a LinearLayout inside my ScrollView in order to constrain it
<androidx.constraintlayout.widget.ConstraintLayout 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">
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"
tools:layout_editor_absoluteX="1dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<View....</View>
</LinearLayout>
</ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>

I have resolve this issue. Inside ScrollView you can not use constraint Layout.
for using constrain inside scroll u have to use Relative layout is parent of constraint Layout..
so ur sequence should be:
ScrollView ---> Relative Layout ---> Constraint Layout

If you came here after searching "Soft Keyboard Hides the View elements"!
Then you just have to add a scrollView and the same layout element again.
Before
<androidx.constraintlayout.widget.ConstraintLayout
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">
<ImageView
android:id="#+id/imageView3"
android:layout_width="246dp"
android:layout_height="168dp"
android:layout_marginTop="20dp"
android:src="#drawable/img"/>
<Button
android:id="#+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</androidx.constraintlayout.widget.ConstraintLayout>
After
<androidx.constraintlayout.widget.ConstraintLayout 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">
<ScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
android:fillViewport="true">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/imageView3"
android:layout_width="246dp"
android:layout_height="168dp"
android:layout_marginTop="20dp"
android:src="#drawable/img"/>
<Button
android:id="#+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>

For the horizontal scroll view case (parent is ConstraintLayout, immediate child is LinearLayout), I found that setting the four constraints, layout_width=0dp, and fillViewport=true was not enough. It still didn't scroll.
What did work in my case was to set the four constraints and change the element from ScrollView to HorizontalScrollView. In that case layout_width can be set to "wrap_content" and fillViewport can be omitted.
Additionally, I added a padding at the end of the immediate child of the HorizontalScrollView, to make the scrolling experience and the look better.

I faced another issue where i had nestedscrollview which has constrainlayout which has linearlayout. This linearlayout has child get added programatically. So scroll was not working. Solved by replacing CL with LL with vertical orientation
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintTop_toBottomOf="#+id/separatr"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
android:fillViewport="true"
android:fitsSystemWindows="true"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:orientation="vertical"
tools:background="#color/yellow_highlight"
android:paddingBottom="#dimen/box96">
<TextView
android:id="#+id/qansTv"
style="#style/BodyText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="#dimen/box200"
android:layout_marginTop="#dimen/box32"
android:layout_marginEnd="#dimen/box200"
android:text="Lorem ipsum dofdfd fsd fdfsd sdf sdfsd fsdfsd fd sdfd fsdfsdf sdfsd df sdfd fsdfsd fsdf sdfsd dflors fdfdf."
android:textColor="#color/white"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<LinearLayout
android:id="#+id/ansImageContainerLL"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:background="#color/red"
android:layout_marginEnd="#dimen/box64"
android:orientation="vertical"
android:layout_marginStart="#dimen/box64"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/qansTv" />
</LinearLayout>
</androidx.core.widget.NestedScrollView>

in my case I had to use 2 recyclerviews and since it didn't want to scroll all the way I found a way to set to which length of the scrollview to scroll, the length is set by changing the width of the TextView.
<?xml version="1.0" encoding="utf-8"?>
<HorizontalScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ui.ProjectsFragment"
android:background="#color/blue">
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="match_parent">
<TextView
android:id="#+id/scrollViewLength"
android:layout_width="2000dp"
android:layout_height="match_parent"
android:text="Change the width above"
android:visibility="invisible"/>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:tag="exampletag"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerView1"
android:tag="exampletag"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginTop="28dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
/>
</FrameLayout>
</HorizontalScrollView>

I know I'm late little bit ,I was facing the same issue what I did wrapped my RecyclerView Inside Linear or Relative layout and it worked like a charm,

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The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

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