Wsrtjtyk

So I have been playing around with MotionLayout to get certain animations to work, but I had an issue with barriers when converting the ConstraintLayout to the MotionLayout. I have a barrier that references two header views on the top of the parent layout and a ViewGroup that constrains the top of the ViewGroup to the bottom of the barrier; however, when I convert the ConstraintLayout to the new MotionLayout, the barrier does not work anymore. My ViewGroup gets constrained to the top of the parent instead of the bottom of the barrier. I assume this is because the library is still in alpha, but I'm hoping someone has some sort of workaround on that.

Edit:

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.motion.MotionLayout 

    usual stuff here

    app:layoutDescription="@xml/scene">



    <CustomHeaderView

        android:id="@+id/first_header"

        android:layout_width="0dp"

        android:layout_height="wrap_content"

        android:visibility="gone"

        app:attachedRecyclerView="@+id/some_recycler_view"

        app:layout_constraintEnd_toEndOf="parent"

        app:layout_constraintStart_toStartOf="parent"

        app:layout_constraintTop_toTopOf="parent" />



    <SecondCustomHeaderView

        android:id="@+id/second_header"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:visibility="visible"

        app:attachedRecyclerView="@+id/some_recycler_view"

        app:layout_constraintEnd_toEndOf="parent"

        app:layout_constraintStart_toStartOf="parent"

        app:layout_constraintTop_toTopOf="parent"/>



    <android.support.constraint.Barrier

        android:id="@+id/barrier"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        app:barrierDirection="bottom"

        app:constraint_referenced_ids="first_header,second_header"

        tools:layout_editor_absoluteY="241dp" />



    <android.support.v4.widget.SwipeRefreshLayout

        android:id="@+id/some_swipe_container"

        android:layout_width="0dp"

        android:layout_height="0dp"

        app:layout_constraintTop_toBottomOf="@id/barrier"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintEnd_toEndOf="parent"

        app:layout_constraintStart_toStartOf="parent">



        <android.support.v4.widget.NestedScrollView

            android:id="@+id/nested_scroll_view"

            android:layout_width="match_parent"

            android:layout_height="match_parent">



            <android.support.v7.widget.RecyclerView

                android:id="@+id/some_recycler_view"

                android:layout_width="match_parent"

                android:layout_height="match_parent"

                android:descendantFocusability="blocksDescendants"

                android:nestedScrollingEnabled="false" />



        </android.support.v4.widget.NestedScrollView>



    </android.support.v4.widget.SwipeRefreshLayout>





</android.support.constraint.motion.MotionLayout>

Thanks!