title: NestedScrollView scroll down itself when content is fills
body: <p>I have xml, which consits of <code>DrawerLayout</code>, <code>CoordinatorLayout</code> with <code>custom views</code>, <code>AppBarLayout</code>, <code>NestedScrollView</code>.</p>
  
  <p><strong>Problem:</strong> When content in <code>NestedtScrollView</code> fills, <code>NestedtScrollView</code> scrolls down itself. 
  All researches like <code>scrollView.setScrollY(0)</code> or custom class for <code>layout_behavior = FixedScrollingViewBehavior</code> didn't help me.</p>
  
  <p>How do i prevent this scrolling</p>
  
  <pre><code>    &lt;android.support.v4.widget.DrawerLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      android:id="@+id/drawer"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:fitsSystemWindows="true"&gt;
  
  
  &lt;LinearLayout
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:orientation="vertical"&gt;
  
      &lt;android.support.design.widget.CoordinatorLayout
              xmlns:android="http://schemas.android.com/apk/res/android"
              xmlns:app="http://schemas.android.com/apk/res-auto"
              android:id="@+id/main_content"
              android:layout_width="match_parent"
              android:layout_height="0dp"
              android:layout_weight="1"&gt;
  
          &lt;android.support.design.widget.AppBarLayout
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"
                  android:fitsSystemWindows="true"
                  android:background="@color/semitransparet_color_primary"&gt;
  
              &lt;android.support.v7.widget.Toolbar
                      xmlns:android="http://schemas.android.com/apk/res/android"
                      xmlns:app="http://schemas.android.com/apk/res-auto"
                      android:id="@+id/actionbar_toolbar"
                      android:layout_width="match_parent"
                      android:layout_height="wrap_content"
                      android:minHeight="?attr/actionBarSize"
                      app:layout_scrollFlags="scroll|enterAlways"
                      app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
                      app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
                      app:elevation="4dp"/&gt;
  
          &lt;/android.support.design.widget.AppBarLayout&gt;
  
          &lt;ProgressBar
                  android:id="@+id/progress"
                  android:layout_width="wrap_content"
                  android:layout_height="wrap_content"
                  android:layout_gravity="center"/&gt;
          &lt;android.support.v4.widget.NestedScrollView
                  android:id="@+id/product_scroll_wrpr"
                  android:layout_width="match_parent"
                  android:layout_height="match_parent"
                  android:visibility="gone"&gt;
  
              &lt;LinearLayout
                      android:layout_width="match_parent"
                      android:layout_height="match_parent"
                      android:orientation="vertical"&gt;
  
                  // my content is here
  
              &lt;/LinearLayout&gt;
  
  
          &lt;/android.support.v4.widget.NestedScrollView&gt;
  
  
  
      &lt;/android.support.design.widget.CoordinatorLayout&gt;
  
      &lt;LinearLayout
              android:id="@+id/buttons_bar"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:visibility="gone"
              android:background="#01579B"
              android:layout_gravity="bottom"
              android:orientation="horizontal"
              android:padding="8dp"
              android:gravity="center_vertical"&gt;
  
      // here are my buttons
  
  &lt;/LinearLayout&gt;
  
  &lt;android.support.design.widget.NavigationView
          android:id="@+id/navi"
          android:layout_width="wrap_content"
          android:layout_height="match_parent"
          android:layout_gravity="start"
          android:fitsSystemWindows="true"
          android:background="@android:color/white"
          app:headerLayout="@layout/drawer_header_left"
          app:menu="@menu/nav_drawer_menu"/&gt;
  </code></pre>
  
  <p></p>
  
  <p>my <strong>build.gradle</strong> consits</p>
  
  <pre><code>compile 'com.android.support:support-v4:23.1.0'
  
  compile 'com.android.support:design:23.0.1'
  </code></pre>