issue while adding ConstraintLayout to RelativeLayout programmatically - android

I have just started using ConstraintLayout, I have already Created layout using ConstraintLayout. Here is XML code:
<?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:id="#+id/constraintSetLay"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/black">
<TextView
android:id="#+id/id_question_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:gravity="center"
android:padding="10dp"
android:text="#string/game_question_display"
android:textColor="#android:color/white"
android:textSize="25sp"
android:textStyle="bold"
app:layout_constraintBottom_toTopOf="#+id/guideline4"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<android.support.constraint.Guideline
android:id="#+id/guideline4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.55" />
<Button
android:id="#+id/id_option_four"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="8dp"
android:layout_marginStart="4dp"
android:layout_marginTop="4dp"
android:background="#color/colorPrimary"
android:padding="#dimen/padding_10dp"
android:text="#string/game_option_four"
android:textAllCaps="false"
android:textColor="#android:color/white"
android:textSize="20sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/id_option_three"
app:layout_constraintTop_toBottomOf="#+id/id_option_two" />
<Button
android:id="#+id/id_option_three"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="4dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="4dp"
android:layout_marginStart="8dp"
android:layout_marginTop="4dp"
android:background="#color/colorPrimary"
android:text="#string/game_option_three"
android:textAllCaps="false"
android:textColor="#android:color/white"
android:textSize="20sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/id_option_four"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/id_option_one" />
<Button
android:id="#+id/id_option_one"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="4dp"
android:layout_marginEnd="4dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="4dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:background="#color/colorPrimary"
android:text="#string/game_option_one"
android:textAllCaps="false"
android:textColor="#android:color/white"
android:textSize="20sp"
app:layout_constraintBottom_toTopOf="#+id/id_option_three"
app:layout_constraintEnd_toStartOf="#+id/id_option_two"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="#+id/guideline4" />
<Button
android:id="#+id/id_option_two"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="4dp"
android:layout_marginEnd="8dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="8dp"
android:layout_marginStart="4dp"
android:layout_marginTop="8dp"
android:background="#color/colorPrimary"
android:text="#string/game_option_two"
android:textAllCaps="false"
android:textColor="#android:color/white"
android:textSize="20sp"
app:layout_constraintBottom_toTopOf="#+id/id_option_four"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/id_option_one"
app:layout_constraintTop_toBottomOf="#+id/guideline4" />
</android.support.constraint.ConstraintLayout>
I have inflated this view and trying to add this view in RelativeLayout programmatically. But after adding inflated view (ConstraintLayout) get shrinks to top of screen. Please Check Image Here
I have tried using ConstraintLayout instead of RelativeLayout, but no change.
Here is the RelativeLayout code which i am using.
<?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"
tools:context="com.radio.constraintlayoutapp.MainActivity">
<RelativeLayout
android:id="#+id/relativeTest"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintDimensionRatio="w,1:1"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
Here is the link for code on Github

Related

Need help designing this using the ConstraintLayout

I am new to ConstraintLayout and trying to achieve the view as attached. Even with Chain, no luck. Maybe I am missing something?

You can simplyfy your alignment with Constraint Layout.
Try this
<?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">
<ImageView
android:id="#+id/imageView"
android:layout_width="100dp"
android:layout_height="100dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/textView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="Android"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/imageView"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/textView4"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="description"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/imageView"
app:layout_constraintTop_toBottomOf="#+id/textView" />
<view
android:id="#+id/view"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:background="#android:color/darker_gray"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toEndOf="#+id/imageView"
app:layout_constraintTop_toBottomOf="#+id/textView4" />
<TextView
android:id="#+id/textView5"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="100"
app:layout_constraintEnd_toStartOf="#+id/textView7"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="#+id/imageView"
app:layout_constraintStart_toStartOf="#+id/textView4"
app:layout_constraintTop_toBottomOf="#+id/view" />
<TextView
android:id="#+id/textView7"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="100"
app:layout_constraintEnd_toStartOf="#+id/textView6"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="#+id/textView5"
app:layout_constraintTop_toBottomOf="#+id/view" />
<TextView
android:id="#+id/textView6"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="100"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="#+id/textView7"
app:layout_constraintTop_toBottomOf="#+id/view" />
</android.support.constraint.ConstraintLayout>
OUTPUT

As stated in other answers. You can do it with Linear Layout You can use Linear Layout as:
<?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="wrap_content"
android:orientation="horizontal">
<ImageView
android:layout_width="54dp"
android:layout_gravity="center"
android:layout_margin="16dp"
android:layout_height="54dp" />
<LinearLayout
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="wrap_content">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="2dp"/>
<LinearLayout
android:layout_width="match_parent"
android:orientation="horizontal"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:layout_weight="1">
<ImageView
android:layout_width="24dp"
android:layout_height="24dp" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:maxLines="1" />
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:layout_weight="1">
<ImageView
android:layout_width="24dp"
android:layout_height="24dp" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:maxLines="1" />
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:layout_weight="1">
<ImageView
android:layout_width="24dp"
android:layout_height="24dp" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:maxLines="1" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
</LinearLayout>

There is absolutely no need for ConstraintLayout for such a simple task.
Even Google's docs say ConstraintLayout allows you to create large and complex layouts with a flat view hierarchy (no nested view groups).
Just use three LinearLayout inside one another LinearLayout. Much simpler and uses less resources

placing next button bottom of ConstraintLayout with viewport in scrollview

I'm developing activity drawing view programmatically.
I wanna place 'NEXT' button to bottom of ConstraingLayout in scrollView
so, Adding ViewPort attribute in scrollView.
It's works for me. when there is no scroll.
But,
If ConstraintLayout's height is stretched, It isn't works correctly.
This is parent code using PageIndicatorView and ViewPager.
<?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:attrs="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=".activities.AssetAddActivity">
<com.rd.PageIndicatorView
android:id="#+id/pageIndicatorView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent"
app:piv_selectedColor="#79f56e02"
app:piv_unselectedColor="#1ef56e02"
app:piv_viewPager="#id/addAssetViewPager"
attrs:piv_padding="12dp"
attrs:piv_radius="8dp" />
<android.support.v4.view.ViewPager
android:id="#+id/addAssetViewPager"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
this is my fragment xml
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/scrollview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:focusableInTouchMode="true"
android:paddingBottom="50dp">
<Button
android:id="#+id/btn_next"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="50dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="32dp"
android:background="#drawable/selector_btn_login"
android:text="#string/button_next"
android:textColor="#color/colorButtonText"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/insert_point"
app:layout_constraintVertical_bias="1.0" />
<TextView
android:id="#+id/txtv_beacon_info"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="60dp"
android:gravity="center"
android:text="새로 등록할 대상의 분류\n그리고 ID와 이름을 입력해주세요."
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Spinner
android:id="#+id/spinner"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="40dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="#+id/txtv_title_category"
app:layout_constraintTop_toBottomOf="#+id/txtv_title_category" />
<android.support.design.widget.TextInputLayout
android:id="#+id/textInputLayout"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="40dp"
android:layout_marginStart="40dp"
android:layout_marginTop="16dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/spinner">
<android.support.design.widget.TextInputEditText
android:id="#+id/edt_asset_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Asset ID"
android:inputType="text" />
</android.support.design.widget.TextInputLayout>
<android.support.design.widget.TextInputLayout
android:id="#+id/textInputLayout4"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="40dp"
android:layout_marginStart="40dp"
android:layout_marginTop="16dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textInputLayout">
<android.support.design.widget.TextInputEditText
android:id="#+id/edt_asset_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Asset Name"
android:inputType="text" />
</android.support.design.widget.TextInputLayout>
<LinearLayout
android:id="#+id/insert_point"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:animateLayoutChanges="true"
android:orientation="vertical"
app:layout_constraintEnd_toEndOf="#+id/textInputLayout4"
app:layout_constraintStart_toStartOf="#+id/textInputLayout4"
app:layout_constraintTop_toBottomOf="#+id/textInputLayout4" />
<TextView
android:id="#+id/txtv_title_category"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="44dp"
android:layout_marginTop="60dp"
android:text="#string/txtv_category"
android:textSize="12sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/txtv_beacon_info" />
</android.support.constraint.ConstraintLayout>
and this picture is problem screenshot.
problem screenshot

Constraint Layout is causing views to overlap

I'm trying to create a view in Android using ConstraintLayout but I'm having a lot of issues with views overlapping or being pushed off of the screen. I think a lot of it might be because I'm so used to iOS constraints and I'm thinking in terms of them. Here is my code:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".LocationFragment">
<android.support.constraint.Guideline
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="#+id/guideHorz125"
app:layout_constraintGuide_percent="0.125"/>
<android.support.constraint.Guideline
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="#+id/guideHorz875"
app:layout_constraintGuide_percent="0.875"/>
<TextView style="#style/Label"
android:id="#+id/currentSelectionLabel"
android:layout_marginBottom="21dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="11dp"
android:text="#string/current_selection"
app:layout_constraintBottom_toTopOf="#id/locationLabel"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<TextView style="#style/Label"
android:id="#+id/locationLabel"
android:layout_marginLeft="41dp"
android:text="#string/none"
app:layout_constraintBottom_toTopOf="#id/mapView"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toBottomOf="#id/currentSelectionLabel"/>
<com.google.android.gms.maps.MapView
android:id="#+id/mapView"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="20dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="20dp"
app:layout_constraintBottom_toTopOf="#id/previousButton"
app:layout_constraintDimensionRatio="16:9"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#id/locationLabel"/>
<Button style="#style/RoundedButton"
android:id="#+id/previousButton"
android:text="#string/previous"
app:layout_constraintBottom_toTopOf="#id/newButton"
app:layout_constraintLeft_toLeftOf="#id/guideHorz125"
app:layout_constraintRight_toRightOf="#id/guideHorz875"
app:layout_constraintTop_toBottomOf="#id/mapView"/>
<Button style="#style/RoundedButton"
android:id="#+id/newButton"
android:layout_marginBottom="8dp"
android:layout_marginTop="8dp"
android:text="#string/new_location"
app:layout_constraintBottom_toTopOf="#id/resetButton"
app:layout_constraintLeft_toLeftOf="#id/previousButton"
app:layout_constraintRight_toRightOf="#id/previousButton"
app:layout_constraintTop_toBottomOf="#id/previousButton"/>
<Button style="#style/RoundedButton"
android:id="#+id/resetButton"
android:text="#string/reset"
app:layout_constraintBottom_toTopOf="#id/startButton"
app:layout_constraintLeft_toLeftOf="#id/previousButton"
app:layout_constraintRight_toRightOf="#id/previousButton"
app:layout_constraintTop_toBottomOf="#id/previousButton"/>
<com.company.ui.ImageButton
android:id="#+id/startButton"
android:layout_width="240dp"
android:layout_height="90dp"
android:layout_marginTop="16dp"
android:layout_marginBottom="11dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:src="#drawable/start"
app:text="#string/get_started"/>
</android.support.constraint.ConstraintLayout>
The first image is what I'd like to see, and the second is what I'm getting.

Try changing
<Button style="#style/RoundedButton"
android:id="#+id/resetButton"
android:text="#string/reset"
app:layout_constraintBottom_toTopOf="#id/startButton"
app:layout_constraintLeft_toLeftOf="#id/previousButton"
app:layout_constraintRight_toRightOf="#id/previousButton"
app:layout_constraintTop_toBottomOf="#id/previousButton"/>
To
<Button style="#style/RoundedButton"
android:id="#+id/resetButton"
android:text="#string/reset"
app:layout_constraintBottom_toTopOf="#id/startButton"
app:layout_constraintLeft_toLeftOf="#id/previousButton"
app:layout_constraintRight_toRightOf="#id/previousButton"
app:layout_constraintTop_toBottomOf="#id/newButton"/>

Use below layout:
<?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.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="16dp"
android:layout_marginTop="4dp"
android:text="Current Selection"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="None"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.184"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textView3" />
<com.google.android.gms.maps.MapView
android:id="#+id/mapView"
android:layout_width="311dp"
android:layout_height="114dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textView4" />
<Button
android:id="#+id/button54"
android:layout_width="296dp"
android:layout_height="36dp"
android:layout_marginTop="52dp"
android:text="Button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/mapView" />
<Button
android:id="#+id/button55"
android:layout_width="296dp"
android:layout_height="36dp"
android:layout_marginTop="96dp"
android:text="Button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/mapView" />
<Button
android:id="#+id/button56"
android:layout_width="296dp"
android:layout_height="36dp"
android:layout_marginTop="8dp"
android:text="Button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/mapView" />
<ImageButton
android:id="#+id/imageButton"
android:layout_width="293dp"
android:layout_height="116dp"
android:layout_marginBottom="8dp"
android:layout_marginTop="8dp"
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/button55"
app:layout_constraintVertical_bias="0.529"
app:srcCompat="#drawable/googleg_disabled_color_18" />
</android.support.constraint.ConstraintLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.constraint.ConstraintLayout>

horizontal line with text in middle with ConstraintLayout

I'm trying to achieve the same result as in:
Android : horizontal line with text in middle
but using ConstraintLayout.
No matter what I tried, I can't make the text and the 2 views to be aligned vertically.
I'm not sure if it's because I'm not setting a specific width to the dividers views, but I don't see any other way to let the views take all the free space.
Here's my test layout sample:
<?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">
<View
android:id="#+id/right_divider"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginBottom="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toBottomOf="#+id/text"
app:layout_constraintEnd_toStartOf="#+id/text"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintHorizontal_chainStyle="spread"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/button5"
app:layout_constraintVertical_bias="0.975"/>
<TextView
android:id="#+id/text"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="Button"
app:layout_constraintEnd_toStartOf="#+id/left_divider"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="#+id/right_divider"
app:layout_constraintTop_toBottomOf="#+id/button5"/>
<View
android:id="#+id/left_divider"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginEnd="8dp"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toBottomOf="#+id/text"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toEndOf="#+id/text"
app:layout_constraintTop_toBottomOf="#+id/button5"
app:layout_constraintVertical_bias="0.946"/>
<Button
android:id="#+id/button5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="Button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
</android.support.constraint.ConstraintLayout>"
android:layout_marginTop="8dp"
android:text="Button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
</android.support.constraint.ConstraintLayout>

try below code
<?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">
<View
android:id="#+id/right_divider"
android:layout_width="0dp"
android:layout_height="1dp"
android:background="#000"
android:layout_marginBottom="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toBottomOf="#+id/text"
app:layout_constraintEnd_toStartOf="#+id/text"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintHorizontal_chainStyle="spread"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/button5"
app:layout_constraintVertical_bias="0.975"/>
<TextView
android:id="#+id/text"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="50dp"
android:text="Button"
android:gravity="center"
app:layout_constraintEnd_toStartOf="#+id/left_divider"
app:layout_constraintStart_toEndOf="#+id/right_divider"
app:layout_constraintTop_toBottomOf="#+id/button5"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
app:layout_constraintLeft_toLeftOf="#+id/right_divider"
app:layout_constraintRight_toRightOf="#+id/left_divider"/>
<View
android:id="#+id/left_divider"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginEnd="8dp"
android:background="#000"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/text"
tools:layout_editor_absoluteY="112dp"
tools:layout_editor_absoluteX="243dp"/>
<Button
android:id="#+id/button5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="Button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
</android.support.constraint.ConstraintLayout>

try this :
<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/gridLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<View
android:id="#+id/left_divider"
android:layout_width="0dp"
android:layout_height="1dp"
android:background="#color/colorPrimary"
app:layout_constraintBottom_toBottomOf="#+id/text"
app:layout_constraintEnd_toStartOf="#+id/text"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="#+id/text" />
<TextView
android:id="#+id/text"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:gravity="center"
android:text="Hello"
app:layout_constraintEnd_toStartOf="#+id/right_divider"
app:layout_constraintStart_toEndOf="#+id/left_divider"
app:layout_constraintTop_toBottomOf="#+id/button5" />
<View
android:id="#+id/right_divider"
android:layout_width="0dp"
android:layout_height="1dp"
android:background="#color/colorPrimary"
app:layout_constraintBottom_toBottomOf="#+id/text"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/text"
app:layout_constraintTop_toTopOf="#+id/text" />
<Button
android:id="#+id/button5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="Button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>

You can achieve this using single divider view like:
<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">
<View
android:id="#+id/divider"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginStart="8dp"
android:background="#android:color/darker_gray"
app:layout_constraintBottom_toBottomOf="#+id/text"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="#+id/text" />
<TextView
android:id="#+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:background="#android:color/white"
android:padding="5dp"
android:text="Button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/button5" />
<Button
android:id="#+id/button5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="Button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
It Outputs:

RecyclerView row layout collapsing

I have a row layout, which is a constraint layout.
However, the layout is collapsing on being displayed, as follows:
here is what it should look like:
I want the first 3 element to be constrained to the left, and the last 2 to be constrained to the right, with any empty space being in the middle.
Here's my XML:
<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="wrap_content">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/habitEventCommentTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginStart="16dp"
android:layout_marginTop="8dp"
android:textSize="18sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="comment" />
<TextView
android:id="#+id/eventTypeTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="#+id/textView"
app:layout_constraintTop_toTopOf="parent"
tools:text="Habit Type" />
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginStart="16dp"
android:layout_marginTop="8dp"
android:text="TYPE:"
android:textSize="16sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="#+id/habitEventCommentTextView"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.52" />
<TextView
android:id="#+id/dateTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="16dp"
android:layout_marginTop="8dp"
android:text="date"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="date" />
<ImageView
android:id="#+id/habitEventThumbnail"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="16dp"
android:layout_marginTop="8dp"
android:background="#drawable/greyrabbit"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/dateTextView"
app:layout_constraintRight_toLeftOf="#+id/dateTextView"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0" />
</android.support.constraint.ConstraintLayout>
</LinearLayout>

try this:
<?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="wrap_content">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/txtComment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginTop="8dp"
android:textSize="18sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="#+id/txtType"
app:layout_constraintTop_toTopOf="parent"
android:text="comment" />
<TextView
android:id="#+id/txtType"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginStart="16dp"
android:layout_marginTop="8dp"
android:text="TYPE:"
android:textSize="16sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="#+id/txtComment"
app:layout_constraintRight_toLeftOf="#id/eventTypeTextView"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/eventTypeTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="16dp"
android:layout_marginStart="16dp"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toLeftOf="#id/habitEventThumbnail"
app:layout_constraintLeft_toRightOf="#+id/txtType"
app:layout_constraintTop_toTopOf="parent"
android:text="Habit Type" />
<ImageView
android:id="#+id/habitEventThumbnail"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="16dp"
android:layout_marginTop="8dp"
android:background="#mipmap/ic_launcher"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toLeftOf="#+id/dateTextView"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/dateTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="16dp"
android:layout_marginTop="8dp"
android:text="date"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="date" />
</android.support.constraint.ConstraintLayout>
</LinearLayout>

use a relative layout with two child linear layout ,one alignparentleft and one alignparent right.

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