constrained width expands the view #713

Open
@WildOrangutan

Description

Issue

When layout_constrainedWidth is set to true , it can expand parent layout.

Use case

I'm trying to achieve following layout. I want text_view to expand until it's limitied by size of view_2 .

But when layout_constrainedWidth is set, it expands whole parent:

<?xml




    
 version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:background="@android:color/darker_gray">
        android:id="@+id/view_1"
        android:layout_width="20dp"
        android:layout_height="20dp"
        android:background="@android:color/holo_blue_dark"
        app:layout_constraintEnd_toStartOf="@id/text_view"
        app:layout_constraintHorizontal_chainStyle="packed"
        app:layout_constraintStart_toStartOf="@id/view_2"
        app:layout_constraintTop_toTopOf="parent" />
    <TextView
        android:id="@+id/text_view"
        android:layout_width="wrap_content"
        android:layout_height="20dp"
        android:background="@android:color/holo_purple"
        android:ellipsize="end"
        android:maxLines="1"
        app:layout_constrainedWidth="true"
        app:layout_constraintEnd_toEndOf="@id/view_2"
        app:layout_constraintStart_toEndOf="@id/view_1"
        app:layout_constraintTop_toTopOf="parent"
        tools:text="@tools:sample/lorem/random" />
        android:id="@+id/view_2"
        android:layout_width="200dp"
        android:layout_height="20dp"
        android:background="@android:color/holo_red_dark"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/view_1" />
</androidx.constraintlayout.widget.ConstraintLayout>

Versions

androidx.constraintlayout:constraintlayout:2.1.4