Chaining Constraint Layout

layout-chainexample.xml

<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">
	<Button
		android:id="@+id/hide1"
		android:layout_width="wrap_content"
		android:layout_height="wrap_content"
		android:tag="hide1"
		android:text="Hide"
		app:layout_constraintBottom_toBottomOf="parent"
		app:layout_constraintHorizontal_chainStyle="packed"
		app:layout_constraintLeft_toLeftOf="parent"
		app:layout_constraintRight_toLeftOf="@+id/btn_comment1"
		app:layout_constraintTop_toBottomOf="@+id/container1"/>

	<Button
		android:id="@+id/btn_comment1"
		android:layout_width="wrap_content"
		android:layout_height="wrap_content"
		android:tag="btn_comment1"
		android:text="Comment"
		app:layout_constraintLeft_toRightOf="@+id/hide1"
		app:layout_constraintRight_toLeftOf="@+id/share1"
		app:layout_constraintTop_toTopOf="@+id/hide1"/>

	<Button
		android:id="@+id/share1"
		android:layout_width="wrap_content"
		android:layout_height="wrap_content"
		android:tag="share1"
		android:text="Share"
		app:layout_constraintLeft_toRightOf="@+id/btn_comment1"
		app:layout_constraintRight_toRightOf="@+id/share2"
		app:layout_constraintTop_toTopOf="@+id/btn_comment1"/>

	<Button
		android:id="@+id/share2"
		android:layout_width="wrap_content"
		android:layout_height="wrap_content"
		android:tag="share1"
		android:text="Share2"
		app:layout_constraintLeft_toRightOf="@+id/share1"
		app:layout_constraintRight_toRightOf="parent"
		app:layout_constraintTop_toTopOf="@+id/btn_comment1"/>

</androidx.constraintlayout.widget.ConstraintLayout>