IssueTracker

ConstraintLayout version: 2.1.0-alpha2 - crashes on Android API 16

Workes fine on 2.1.0-alpha1.

Android API 16

Layout:

<?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:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:keepScreenOn="true">

    <com.google.android.exoplayer2.ui.PlayerView
        android:id="@+id/player_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:layout_editor_absoluteX="0dp"
        tools:layout_editor_absoluteY="0dp" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/channels_recyclerview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:visibility="gone"
        android:layout_marginBottom="64dp"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@id/time"
        app:layout_constraintBottom_toBottomOf="parent" />

    <TextView
        android:id="@+id/time"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="84dp"
        android:layout_marginLeft="84dp"
        android:layout_marginTop="36dp"
        android:background="#000000"
        android:paddingHorizontal="26dp"
        android:paddingVertical="8dp"
        android:shadowColor="#FFFFFF"
        android:textColor="#FFFFFF"
        android:textSize="18sp"
        android:textStyle="bold"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.appcompat.widget.AppCompatButton
        android:id="@+id/button_channel"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="36dp"
        android:layout_marginEnd="64dp"
        android:layout_marginRight="64dp"
        android:paddingHorizontal="26dp"
        android:paddingVertical="2dp"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        style="@style/Channel.Button.Selected" />

    <TextView
        android:id="@+id/date"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginBottom="108dp"
        android:background="#000000"
        android:paddingHorizontal="16dp"
        android:paddingVertical="8dp"
        android:shadowColor="#FFFFFF"
        android:textColor="#FFFFFF"
        android:textSize="18sp"
        android:textStyle="bold"
        app:layout_constraintStart_toEndOf="@+id/time"
        app:layout_constraintTop_toTopOf="@+id/time" />

</androidx.constraintlayout.widget.ConstraintLayout>

Exception:

     Caused by: java.lang.UnsupportedOperationException: Can't convert to dimension: type=0x3
        at android.content.res.TypedArray.getDimensionPixelSize(TypedArray.java:463)
        at androidx.constraintlayout.widget.ConstraintLayout$LayoutParams.<init>(ConstraintLayout.java:3138)
        at androidx.constraintlayout.widget.ConstraintLayout.generateLayoutParams(ConstraintLayout.java:1955)
        at androidx.constraintlayout.widget.ConstraintLayout.generateLayoutParams(ConstraintLayout.java:485)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:748)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
        at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:696)
        at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:195)
        at org.ro_tv.ui.main.MainActivity.onCreate(MainActivity.java:107)
        at android.app.Activity.performCreate(Activity.java:5008)
...