start constraint set

sample_collapsing_animation_scene.xml

<ConstraintSet android:id="@+id/start">
    <Constraint
        android:id="@id/search_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginEnd="16dp"
        android:elevation="4dp"
        motion:layout_constraintEnd_toEndOf="parent"
        motion:layout_constraintStart_toStartOf="parent"
        motion:layout_constraintTop_toBottomOf="@id/navigation_icon" />

    <Constraint
        android:id="@+id/toolbar_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:elevation="4dp"
        motion:layout_constraintBottom_toBottomOf="@id/navigation_icon"
        motion:layout_constraintStart_toEndOf="@id/navigation_icon"
        motion:layout_constraintTop_toTopOf="@id/navigation_icon" />

    <Constraint android:id="@id/navigation_icon">
        <CustomAttribute
            motion:attributeName="ColorFilter"
            motion:customColorValue="#000000" />
    </Constraint>

    <Constraint android:id="@id/menu_icon">
        <CustomAttribute
            motion:attributeName="ColorFilter"
            motion:customColorValue="#000000" />
    </Constraint>
</ConstraintSet>