I have an XML layout for a ViewHolder inside a RecyclerView.
This layout root is a ConstraintLayout whose height is set to wrap_content.
Inside this flat hierarchy there are 3 text images and a fixed-height image; think:
<ConstraintLayout>
<TextView height=wrap>
<TextView height=wrap>
<TextView height=wrap>
<ImageView height=150dp>
</ConstraintLayout>
This is a relatively simple layout. It beta4looks like this in the constructor (and, ultimately, at runtime, each recyclerView cell):
Apologies for the "red tape", but this is the NDA blah blah.
In this case, the elements:
3 text views (red ribbon with a beautiful purple background) ImageView with a height of 150dp is a gray thing.
A purple background has been applied to the root of ConstraintLayout. Things are good.
Now here's what it looks like, without a single modification with Beta 5:
, () Constraint Layout "" , .
, :
app:layout_constraintHeight_default="wrap" ConstraintLayout ( ). .
ImageView app:layout_constraintBottom_toBottomOf="parent", , .
4:)
( : ). .
<?xml version="1.0" encoding="utf-8"?>
<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:background="@color/colorAccent">
<TextView
android:id="@+id/toplabel"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text=""
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="@+id/top_bottom_label"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="@+id/top_right_label"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/top_right_label"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginTop="8dp"
android:ellipsize="end"
android:gravity="end"
android:maxLines="1"
android:text=""
app:layout_constraintBottom_toTopOf="@+id/top_bottom_label"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintLeft_toRightOf="@+id/toplabel"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_chainStyle="packed" />
<TextView
android:id="@+id/top_bottom_label"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginTop="8dp"
android:ellipsize="end"
android:gravity="end"
android:maxLines="1"
android:text=""
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintLeft_toRightOf="@+id/toplabel"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/top_right_label" />
<ImageView
android:id="@+id/imageview"
android:layout_width="0dp"
android:layout_height="150dp"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/top_bottom_label"
app:srcCompat="@android:color/darker_gray" />
</android.support.constraint.ConstraintLayout>
- ? ( , RelativeLayout , , , ... ConstraintLayout!):)