title: Issue with scrollview in Fragment layout
body: <p><code>ScrollView</code> is not scrolling when having multiple <code>linearLayouts</code> in it. 
     <code>ScrollView</code> is also inside a <code>linearLayout</code>. Below is my <code>fragment.xml</code> code </p>
  
  <p>I am using <code>youtubePlayer</code> above the screen and under this using buttons to 
     play other videos in scroll view.</p>
  
  <p>I have searched and change accordingly but not solved. </p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;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:layout_width="match_parent"
  android:layout_height="match_parent"
  &gt;
  &lt;FrameLayout
      android:id="@+id/youtube_frame"
      android:layout_width="0dp"
      android:layout_height="230dp"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintStart_toStartOf="parent"
      app:layout_constraintTop_toTopOf="parent" /&gt;
  
          &lt;LinearLayout
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          app:layout_constraintTop_toBottomOf="@+id/linearTitle"
          android:orientation="vertical"
          &gt;
  
          &lt;ScrollView
  
              android:id="@+id/scrollView"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              app:layout_constraintTop_toBottomOf="@+id/linearTitle"
              android:layout_marginTop="10dp"
              android:isScrollContainer="false"
              android:fitsSystemWindows="true"
              android:fillViewport="true"
              &gt;
  
  
              &lt;LinearLayout
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"
                  android:gravity="center"
                  android:orientation="vertical"&gt;
  
  
                  &lt;LinearLayout
                      android:layout_width="match_parent"
                      android:layout_height="wrap_content"
                      android:gravity="center"
                      android:orientation="horizontal"
                      android:weightSum="4.0"&gt;
  
  
                            &lt;My ImageButtons&gt;
  
  
                  &lt;/LinearLayout&gt;
  
                  &lt;LinearLayout
                      android:layout_width="match_parent"
                      android:layout_height="wrap_content"
                      android:gravity="center"
                      android:orientation="horizontal"
                      android:weightSum="4.0"&gt;
  
  
                     &lt;My ImageButtons&gt;
  
                  &lt;/LinearLayout&gt;
  
                  &lt;LinearLayout
                      android:layout_width="match_parent"
                      android:layout_height="wrap_content"
                      android:gravity="center"
                      android:orientation="horizontal"
                      android:weightSum="4.0"&gt;
  
  
                      &lt;My ImageButtons&gt;
  
                  &lt;/LinearLayout&gt;
  
                  &lt;LinearLayout
                      android:layout_width="match_parent"
                      android:layout_height="wrap_content"
                      android:gravity="center"
                      android:orientation="horizontal"
                      android:weightSum="4.0"&gt;
  
                    &lt;My ImageButtons&gt;
  
                  &lt;/LinearLayout&gt;
  
                  &lt;LinearLayout
                      android:layout_width="match_parent"
                      android:layout_height="wrap_content"
                      android:gravity="center"
                      android:orientation="horizontal"
                      android:weightSum="4.0"&gt;
  
  
                     &lt;My ImageButtons&gt;
  
                  &lt;/LinearLayout&gt;
  
  
  
                  &lt;View
                      android:layout_width="match_parent"
                      android:layout_height="50dp" /&gt;
  
              &lt;/LinearLayout&gt;
  
  
  
          &lt;/ScrollView&gt;
  
          &lt;/LinearLayout&gt;
  
  
  &lt;/androidx.constraintlayout.widget.ConstraintLayout&gt;
  </code></pre>