constraintlayout_1_0_0_working.png

constraintlayout_1_0_1_not_working.png

gistfile1.txt

<android.support.constraint.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="match_parent"
    android:layout_height="wrap_content"
    android:padding="6dp"
    >

  <ImageView
      android:id="@+id/document_image"
      android:layout_width="115dp"
      android:layout_height="86dp"
      android:scaleType="centerCrop"
      app:layout_constraintDimensionRatio="115:86"
      app:layout_constraintLeft_toLeftOf="parent"
      app:layout_constraintTop_toTopOf="parent"
      tools:background="@color/gray_light"
      />

  <ImageView
      android:id="@+id/document_icon"
      android:layout_width="20dp"
      android:layout_height="20dp"
      android:padding="2dp"
      app:layout_constraintBottom_toBottomOf="@+id/document_image"
      app:layout_constraintLeft_toLeftOf="@+id/document_image"
      app:layout_constraintTop_toTopOf="@+id/document_image"
      app:layout_constraintVertical_bias="0.9"
      tools:background="#CC0000"
      tools:src="@android:drawable/arrow_down_float"
      />

  <TextView
      android:id="@+id/document_headline_first"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      android:layout_marginLeft="10dp"
      android:layout_marginRight="10dp"
      android:ellipsize="end"
      android:maxLines="2"
      android:textColor="#6B6B6B"
      android:textSize="16sp"
      app:layout_constraintLeft_toRightOf="@+id/document_image"
      app:layout_constraintRight_toRightOf="parent"
      app:layout_constraintTop_toTopOf="@+id/document_image"
      tools:text="Lorem ipsum dolor sit amet, consetetur sadipscing elitr"
      />

  <TextView
      android:id="@+id/document_teaser"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      app:layout_constraintLeft_toLeftOf="@+id/document_headline_first"
      app:layout_constraintRight_toRightOf="@+id/document_headline_first"
      app:layout_constraintTop_toBottomOf="@+id/document_headline_first"
      tools:text="Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet."
      />

</android.support.constraint.ConstraintLayout>

ConstraintLayout 1.0.1 is not working with the above xml file. But 1.0.0 is working!

possible workarounds:

1. change height of root ConstraintLayout to android:layout_height="match_parent" instead of wrap_content (not possible because all layouts in recyclerview are too big)
2. change the constraints of the last textview to

<TextView
      android:id="@+id/document_teaser"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      app:layout_constraintLeft_toRightOf="@+id/document_image"
      app:layout_constraintRight_toRightOf="parent"
      app:layout_constraintTop_toBottomOf="@+id/document_headline_first"
      tools:text="Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet."
      />