Develop Reference

Is it possible to to define all my layout only with constraints?

I am trying to define the height of the constraintLayout1 30% of the available size. And the remaining for the constraintLayout2. But I want to define percentage not pixels.
The Button1 should be 50% with and the button2 the others 50%.
I want to define everything with constraints and not with fix values (as I am doing now marginBottom="500dp).
Is this possible to do in any way? I am using Android 3.6.2.
<?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"
tools:context=".MainActivity">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/constraintLayout1"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="500dp"
android:background="#E91E63"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0">
</androidx.constraintlayout.widget.ConstraintLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/constraintLayout2"
android:layout_width="0dp"
android:layout_height="0dp"
android:background="#8BC34A"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/constraintLayout1"
app:layout_constraintVertical_bias="0.0">
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:text="Button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:text="Button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
```[enter image description here][1]
[1]: https://i.stack.imgur.com/NzZwz.png

You can use layout_constraintVertical_weight and layout_constraintHorizontal_weight
<?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="match_parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/constraintLayout1"
android:layout_width="0dp"
android:layout_height="0dp"
android:background="#E91E63"
app:layout_constraintBottom_toTopOf="#id/constraintLayout2"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_weight="0.3">
</androidx.constraintlayout.widget.ConstraintLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/constraintLayout2"
android:layout_width="0dp"
android:layout_height="0dp"
android:background="#8BC34A"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/constraintLayout1"
app:layout_constraintVertical_weight="0.7">
<Button
android:id="#+id/button1"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="Button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#id/button2"
app:layout_constraintHorizontal_weight="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="#id/constraintLayout2" />
<Button
android:id="#+id/button2"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintHorizontal_weight="0.5"
android:text="Button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#id/button1"
app:layout_constraintTop_toTopOf="#id/constraintLayout2" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

Yes, an easy way to do this is Guidelines
You would basically say that you create a horizontal/vertical line at 0-100% of the width/height (in your case 30% or 50%) and then connect your buttons with that Guideline
Also it is bad practice to have multiple Constraintlayouts within eachother when not needed, you should only have one
Ask if you have any further questions

How do I overlap components inside a ConstraintLayout?

I am trying to overlap components inside a constraint layout. I would like to have the bottom of Team One to be on top of the vs container. I was able to align it by using the app:layout_constraintVertical_bias attribute. When the keyboard expands, the component is not responsive. It will push the Team One over the vs past the point of being flush with top of the vs container.
<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:id="#+id/team_divider_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="#+id/team_one_name_container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxWidth="200dp"
android:elevation="2dp"
app:layout_constraintEnd_toStartOf="#id/team_two_name"
app:layout_constraintHorizontal_bias=".3"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toTopOf="#id/select_teams_container">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_gravity="center|end"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<com.google.android.material.textfield.TextInputEditText
android:layout_gravity="center|start"
android:id="#+id/team_one_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#null"
android:focusedByDefault="false"
android:cursorVisible="true"
android:minWidth="100dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toStartOf="#id/color_picker_circle"
android:textCursorDrawable="#null"
android:text="#string/start_game"
android:inputType="textCapCharacters|textNoSuggestions"
android:textAppearance="#style/TextAppearance.MyTheme.Headline1"/>
<com.madrapps.pikolo.HSLColorPicker
android:id="#+id/team_one_color_picker"
android:layout_width="200dp"
android:layout_height="200dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintHorizontal_bias=".75"
app:layout_constraintStart_toEndOf="#id/team_one_name"
app:layout_constraintTop_toTopOf="parent" />
<com.google.android.material.card.MaterialCardView
android:id="#+id/color_picker_circle"
android:layout_width="50dp"
android:layout_height="50dp"
android:clickable="true"
android:focusable="true"
app:cardElevation="2dp"
app:cardBackgroundColor="#color/color_primary"
app:layout_constraintStart_toEndOf="#id/team_one_name"
app:layout_constraintEnd_toEndOf="#id/team_one_color_picker"
app:layout_constraintBottom_toBottomOf="#id/team_one_name"
app:layout_constraintTop_toTopOf="#id/team_one_name"
app:shapeAppearance="#style/ShapeAppearanceOverlay.MyApp.MaterialCardView.Circle"/>
<ImageButton
android:id="#+id/confirm_team_one_color_btn"
android:layout_width="60dp"
android:layout_height="60dp"
android:background="#drawable/ic_check_circle_black_48dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="#id/team_one_color_picker"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias=".25"/>
</androidx.constraintlayout.widget.ConstraintLayout>
</LinearLayout>
<com.google.android.material.textfield.TextInputEditText
android:id="#+id/team_two_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minWidth="100dp"
android:background="#null"
android:cursorVisible="true"
android:focusedByDefault="false"
android:gravity="end"
android:inputType="textCapCharacters|textNoSuggestions"
android:textAppearance="#style/TextAppearance.MyTheme.Headline1"
android:textCursorDrawable="#null"
app:layout_constraintBottom_toTopOf="#id/select_teams_container"
app:layout_constraintEnd_toEndOf="#id/select_teams_container"
app:layout_constraintWidth_percent=".25" />
<com.google.android.material.card.MaterialCardView
android:id="#+id/select_teams_container"
android:layout_width="0dp"
android:layout_height="0dp"
app:strokeWidth="2dp"
app:strokeColor="#color/color_primary"
app:shapeAppearance="#style/ShapeAppearance.MaterialComponents.MediumComponent.TeamSelectCard"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintWidth_percent=".6"
app:layout_constraintHeight_percent=".55">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/team_one_container"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_gravity="center"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#id/team_two_container"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/team_one_recyclerView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:nestedScrollingEnabled="false"
android:orientation="vertical"
android:overScrollMode="never"
android:weightSum="5"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:itemCount="5"
tools:listitem="#layout/playercard_draggable" />
</androidx.constraintlayout.widget.ConstraintLayout>
<TextView
android:id="#+id/vertical_divider"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="VS"
style="#style/TextAppearance.MyTheme.Headline1"
app:layout_constraintStart_toEndOf="#id/team_one_container"
app:layout_constraintEnd_toStartOf="#id/team_two_container"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/team_two_container"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintStart_toEndOf="#id/team_one_container"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/team_two_recyclerView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:weightSum="5"
android:overScrollMode="never"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:itemCount="5"
tools:listitem="#layout/playercard_draggable" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
When I don't use vertical bias:
When I use vertical bias:
When the keyboard is expanded:

I cant do simple comments on the initial post yet.
But it look as if your team_one_color_picker view has a set height of 200, which is making the parent view not fit in the available screen correctly. Try changing that height param to be something dynamic
Also your team_one_name_container object can be a height of 0dp since it is constrained at the top and bottom.

First, set android:windowSoftInputMode="adjustNotjing" in the manifest file or through the Java code, so that your view does not change when the keyboard is in open or closed state, and then you can use translationY=-10dp or any particular dp depending on your need for Team1 to move it on to the top of vs container.

I am struggling to control the gravity of a textView inside my CardView items once I put it inside a GridView

Below is a screenshot of my gridView currently:
Even though I have centered the TextField inside the card, they are still pinned to the left. How do I fix this so that the Text is centered in the middle? It seems like once I add an item to a gridView, the gridView attributes overrule their children.
Here is my layout code:
CARDVIEW
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
layout_height=""
android:layout_width="120dp"
android:layout_height="120dp"
app:cardBackgroundColor="#E73737"
app:cardElevation="4dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/relativeLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/ivCategoryIcon"
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_marginTop="16dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toTopOf="#+id/tvCategoryTitle"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/btn_translation_panel_loading" />
<TextView
android:id="#+id/tvCategoryTitle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
android:layout_marginBottom="8dp"
android:text="TextView"
android:textAlignment="center"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/ivCategoryIcon"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
Fragment
<?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:id="#+id/frameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ui.fragments.CategoryViewFragment">
<GridView
android:id="#+id/gvCategories"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="32dp"
android:layout_marginEnd="32dp"
android:clickable="true"
android:clipChildren="false"
android:gravity="center"
android:horizontalSpacing="8dp"
android:numColumns="2"
android:stretchMode="columnWidth"
android:verticalSpacing="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:visibility="visible" />
</androidx.constraintlayout.widget.ConstraintLayout>

Add android:gravity="center" in your textview like following.
<TextView
android:id="#+id/tvCategoryTitle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
android:layout_marginBottom="8dp"
android:text="TextView"
android:gravity="center"
android:textAlignment="center"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/ivCategoryIcon"/>

use relative layout insists of ConstraintLayout.
use center_horizontal to the text view=true

Can you please try this and change your constraint layout ?
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/relativeLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/ivCategoryIcon"
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_marginTop="16dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/btn_translation_panel_loading" />
<TextView
android:id="#+id/tvCategoryTitle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
android:layout_marginBottom="8dp"
android:text="TextView"
android:textAlignment="center"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/ivCategoryIcon"
/>
</androidx.constraintlayout.widget.ConstraintLayout>

Android TextView align text vertically within the bounding box

Note: I am troubling aligning text within the bounding box not within the parent view.
This happens when I apply background color to the TextView so I can reduce one parent layout just to add background color
XML File
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/item_card"
style="#style/CardViewTheme"
android:layout_width="96dp"
android:layout_height="96dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/item_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:layout_marginBottom="8dp"
android:src="#drawable/ic_item_icon"
app:layout_constraintBottom_toTopOf="#+id/item_name"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_chainStyle="spread_inside" />
<TextView
android:id="#+id/item_name"
style="#style/BodyMenuText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:gravity="center"
android:text="Flat Tire"
android:textAlignment="center"
app:layout_constraintBottom_toTopOf="#+id/item_price"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/item_icon" />
<TextView
android:id="#+id/item_price"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorDarkestGray"
android:gravity="center"
android:padding="4dp"
android:text="USD 40"
android:textSize="#dimen/app_caption_text"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/item_name" />
</android.support.constraint.ConstraintLayout>
</android.support.v7.widget.CardView>

Here's your solution:
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/item_card"
android:layout_width="96dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
The layout_height of your CardView wasn't high enough and the bottom of the TextView was getting cut off. Setting it to wrap_content does the trick.

Android Constraint Layout Dimension Ratio Not Working with Wrap Content

Hi I just want to display two textviews in constraint layout like below
What I have done so far is horizontally chain these textviews and since I need them to be squares, set the size as a ratio (constraintDimensionRatio).
This is the code.
<android.support.constraint.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="match_parent">
<TextView
android:id="#+id/textView3"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:background="#color/colorBlueGrey"
android:text="TextView"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintEnd_toStartOf="#+id/textView8"
app:layout_constraintHorizontal_chainStyle="packed"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0" />
<TextView
android:id="#+id/textView8"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:background="#color/colorBrown"
android:text="TextView"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/textView3"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0" />
Now the issue is when I'm changing the constraint layout's
layout_height
into
wrap_content
like this,
<android.support.constraint.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">
It will display like below.
Yep. It won't display at all. Any idea to fix this?
I'm using constraint-layout:1.1.0.

You can achieve the desired result by using a vertical Guideline set at 50% of the parent width and constraining both TextViews to it and maintaining 1:1 ratio, like so:
<android.support.constraint.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.support.constraint.Guideline
android:id="#+id/guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.5" />
<TextView
android:id="#+id/textView3"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="4dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:background="#color/colorBlueGrey"
android:text="TextView"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintEnd_toStartOf="#+id/guideline"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/textView8"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="4dp"
android:layout_marginTop="8dp"
android:background="#color/colorBrown"
android:text="TextView"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/guideline"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
Note that the TextViews no longer create a chain and the margins at the end of the first TextView and at the start of the second TextView had to be changed to make it 8dp in total between the views.

you can try the attribute: android:layout_height="0dp" change android:layout_height="wrap_content".

If you want to preserve aspect ratio and parent layout must be "wrap_content" (useful for text views with variable text), you can add a fake view, which keeps aspect ratio and other elements must be constrained to this view:
<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="wrap_content"
android:layout_height="wrap_content">
<View
android:id="#+id/ratio_constraint"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintDimensionRatio="122:246"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="#id/ratio_constraint"
app:layout_constraintStart_toStartOf="#id/ratio_constraint"
app:layout_constraintTop_toTopOf="#id/ratio_constraint"
tools:text="The TextView which can extend the layout" />
</androidx.constraintlayout.widget.ConstraintLayout>