How to center multiple Views together using ConstraintLayout?
<h2>Background</h2>

<p>Google has announced a new layout called "<a href="http://tools.android.com/tech-docs/layout-editor" rel="noreferrer"><strong>ConstraintLayout</strong></a>" that's supposed to be the ultimate layout, that could replace all of the layouts while staying flat (without nested layouts) and have better performance.</p>

<h2>The problem</h2>

<p>Thing is, I barely see any tutorials for it that could help me on this matter, other than the video presented on Google IO. </p>

<p>What I am trying to do is, given that I have a vertically-centered LinearLayout within another layout - convert them both into a single ConstraintLayout.</p>

<p>After all, this is the purpose of this new layout...</p>

<p>The layout I wish to deal with looks like this:</p>

<p><a href="https://i.stack.imgur.com/145Fv.png" rel="noreferrer"><img src="https://i.stack.imgur.com/145Fv.png" alt="enter image description here"></a></p>

<p>Notice that the views in the center are only centered vertically, and that the 2 textViews are to the right of the ImageView, which is also centered vertically.</p>

<p>This all works well with RelativeLayout, which has the LinearLayout of the 2 TextViews, but I wish to know how to convert them into a single ConstraintLayout.</p>

<p>Here's a sample XML of what I've shown:</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;RelativeLayout
    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:minHeight="?attr/listPreferredItemHeightSmall"&gt;

    &lt;ImageView
        android:id="@+id/appIconImageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_centerVertical="true"
        android:layout_marginEnd="4dp"
        android:layout_marginLeft="2dp"
        android:layout_marginRight="4dp"
        android:layout_marginStart="2dp"
        android:adjustViewBounds="true"
        android:src="@android:drawable/sym_def_app_icon"
        tools:ignore="ContentDescription"/&gt;

    &lt;LinearLayout
        android:id="@+id/appDetailsContainer"
        android:layout_width="0px"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_toEndOf="@+id/appIconImageView"
        android:layout_toLeftOf="@+id/overflowView"
        android:layout_toRightOf="@+id/appIconImageView"
        android:layout_toStartOf="@+id/overflowView"
        android:orientation="vertical"&gt;

        &lt;TextView
            android:id="@+id/appLabelTextView"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:ellipsize="marquee"
            android:text="label"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:textDirection="locale"
            tools:ignore="HardcodedText,UnusedAttribute"/&gt;

        &lt;TextView
            android:id="@+id/appDescriptionTextView"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:ellipsize="marquee"
            android:minLines="3"
            android:text="description"
            android:textAppearance="?android:attr/textAppearanceSmall"
            android:textDirection="locale"
            tools:ignore="HardcodedText,UnusedAttribute"/&gt;
    &lt;/LinearLayout&gt;

    &lt;ImageView
        android:id="@+id/overflowView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:adjustViewBounds="true"
        android:background="?attr/selectableItemBackground"
        android:clickable="true"
        android:padding="10dp"
        app:srcCompat="@drawable/ic_more_vert_black_24dp"

        tools:src="@drawable/ic_more_vert_black_24dp"
        tools:ignore="ContentDescription"/&gt;

    &lt;ImageView
        android:id="@+id/isSystemAppImageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignEnd="@+id/overflowView"
        android:layout_alignLeft="@+id/overflowView"
        android:layout_alignParentBottom="true"
        android:layout_alignRight="@+id/overflowView"
        android:layout_alignStart="@+id/overflowView"
        android:adjustViewBounds="true"
        android:scaleType="centerInside"
        app:srcCompat="@drawable/ic_warning_black_24dp"
        tools:ignore="ContentDescription"
        tools:src="@drawable/ic_warning_black_24dp"/&gt;

&lt;/RelativeLayout&gt;
</code></pre>

<h2>What I tried</h2>

<p>I tried to read some articles and watch some videos of Google :</p>

<ul>
<li><a href="https://codelabs.developers.google.com/codelabs/constraint-layout/index.html#0" rel="noreferrer">https://codelabs.developers.google.com/codelabs/constraint-layout/index.html#0</a></li>
<li><a href="https://www.youtube.com/watch?v=sO9aX87hq9c" rel="noreferrer">https://www.youtube.com/watch?v=sO9aX87hq9c</a></li>
<li><a href="https://youtu.be/csaXml4xtN8?t=1693" rel="noreferrer">https://youtu.be/csaXml4xtN8?t=1693</a></li>
</ul>

<p>That didn't help, so I tried to using it, hoping I will find out how to use it myself.
But I can't find out how to do it. I tried using the feature to convert the layouts, but this makes a huge mess of the views and puts additional margins that I don't want to have.</p>

<h2>The question</h2>

<p>How can I convert the 2 layouts into a single ConstraintLayout ? </p>