Inconsistent Behaviour between 1.1.1 and 2.0.1

[seventhmoon]

Inconsistent behaviour between 1.1.1 and 2.0.1, on non-Pixel devices, mostly old models. Strange blank area added (child element warp_content vs match_parent ??)

• [X] I have searched existing issues and confirmed this is not a duplicate

Issues and steps to reproduce

1. A NestedScrollView with FlexboxLayout in it. (match_parent, to fit the screen)
2. Inside the FlexboxLayout, include a few MaterialCardView (wrap_content)

Expected behavior

As Screen Shot A, not Screen Shot B nor C

Version of the flexbox library

2.0.1

Link to code

Please link to the code we can use to reproduce this issue. A complete project we can build/run is preferred, if you can't provide one, please show us relevant code Please message me your ldap and I'll share to you.

[thagikura]

Thanks for the report. Let me take a look.

[seventhmoon]

    <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <TextView
                android:id="@+id/tv_headline"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                app:layout_constrainedWidth="true"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintBottom_toTopOf="@id/viewgroup_info"/>

            <include
                layout="@layout/viewgroup_info"
                android:id="@+id/viewgroup_info"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                app:layout_constrainedWidth="true"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/tv_headline"/>

        </androidx.constraintlayout.widget.ConstraintLayout>

If we have a ConstraintLayout inside a FlexboxLayout, which has a app:layout_constraintEnd_toEndOf="parent" in the layout. In 2.0.0 and 2.0.1, on some devices, this will make the height of the layout to be 3-4 times of screen height.