title: Android Studio - HorizontalScollView not moving
body: <p>I am doing some Android Studio courses. As part of this I am working on a mock-up music player app. The app should be mostly XML as not functionality needs to be added.
  I am trying to build e Discover (new music) screen, where you have media like views. To do this, I want to implement an HorizontalScrollView. 
  The problem is that my scroll view doesn't move. The xml code looks fine to me and I also googled this but did not find anything that would help my situation.</p>
  
  <p>Would very much appreciate some clarification on this. Here is my code:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;android.support.constraint.ConstraintLayoutxmlns: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="match_parent"
  tools:context="com.example.alexcojocaru.vibes.Discover"&gt;
  
  &lt;LinearLayout
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:orientation="vertical"&gt;
  
      &lt;LinearLayout
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:orientation="vertical"&gt;
  
          &lt;TextView
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:padding="5px"
              android:text="Recommendations"
              android:textColor="#cc3300" /&gt;
  
          &lt;HorizontalScrollView
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:fillViewport="true"
              android:padding="5px"
              android:scrollbars="horizontal"&gt;
  
              &lt;LinearLayout
                  android:layout_width="match_parent"
                  android:layout_height="match_parent"
                  android:orientation="horizontal"&gt;
  
                  &lt;LinearLayout
                      android:layout_width="wrap_content"
                      android:layout_height="wrap_content"
                      android:orientation="vertical"&gt;
  
                      &lt;ImageView
                          android:layout_width="120dp"
                          android:layout_height="120dp"
                          android:padding="5px"
                          android:src="@drawable/bear" /&gt;
  
                      &lt;TextView
                          android:layout_width="wrap_content"
                          android:layout_height="wrap_content"
                          android:padding="5px"
                          android:text="My Name is Bear"
                          android:textColor="#000000"
                          android:textSize="11sp" /&gt;
  
                      &lt;TextView
                          android:layout_width="wrap_content"
                          android:layout_height="wrap_content"
                          android:padding="5px"
                          android:text="Nahko"
                          android:textSize="10sp" /&gt;
  
                  &lt;/LinearLayout&gt;
  
                  &lt;LinearLayout
                      android:layout_width="wrap_content"
                      android:layout_height="wrap_content"
                      android:orientation="vertical"
                      android:paddingLeft="13px"&gt;
  
                      &lt;ImageView
                          android:layout_width="120dp"
                          android:layout_height="120dp"
                          android:padding="6px"
                          android:src="@drawable/omam" /&gt;
  
                      &lt;TextView
                          android:layout_width="wrap_content"
                          android:layout_height="wrap_content"
                          android:padding="5px"
                          android:text="Beneath The Skin"
                          android:textColor="#000000"
                          android:textSize="11sp" /&gt;
  
                      &lt;TextView
                          android:id="@+id/textView"
                          android:layout_width="wrap_content"
                          android:layout_height="wrap_content"
                          android:padding="5px"
                          android:text="Of Monsters and Men"
                          android:textSize="10sp" /&gt;
  
                  &lt;/LinearLayout&gt;
  
                  &lt;LinearLayout
                      android:layout_width="wrap_content"
                      android:layout_height="wrap_content"
                      android:orientation="vertical"
                      android:paddingLeft="13px"&gt;
  
                      &lt;ImageView
                          android:layout_width="120dp"
                          android:layout_height="120dp"
                          android:padding="6px"
                          android:src="@drawable/jmj" /&gt;
  
                      &lt;TextView
                          android:layout_width="wrap_content"
                          android:layout_height="wrap_content"
                          android:padding="5px"
                          android:text="Essential Recollection"
                          android:textColor="#000000"
                          android:textSize="11sp" /&gt;
  
                      &lt;TextView
                          android:layout_width="wrap_content"
                          android:layout_height="wrap_content"
                          android:padding="5px"
                          android:text="Jean-Michel Jarre"
                          android:textSize="10sp" /&gt;
  
                  &lt;/LinearLayout&gt;
  
                  &lt;LinearLayout
                      android:layout_width="wrap_content"
                      android:layout_height="wrap_content"
                      android:orientation="vertical"
                      android:paddingLeft="13px"&gt;
  
                      &lt;ImageView
                          android:layout_width="120dp"
                          android:layout_height="120dp"
                          android:padding="6px"
                          android:src="@drawable/ram" /&gt;
  
                      &lt;TextView
                          android:layout_width="wrap_content"
                          android:layout_height="wrap_content"
                          android:padding="5px"
                          android:text="Random Access Memories"
                          android:textColor="#000000"
                          android:textSize="11sp" /&gt;
  
                      &lt;TextView
                          android:layout_width="wrap_content"
                          android:layout_height="wrap_content"
                          android:padding="5px"
                          android:text="Daft Punk"
                          android:textSize="10sp" /&gt;
  
                  &lt;/LinearLayout&gt;
  
              &lt;/LinearLayout&gt;
  
          &lt;/HorizontalScrollView&gt;
  
      &lt;/LinearLayout&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p></p>