title: Floating Action Button is not displaying android
body: <p>This is my layout file.</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"
      xmlns:tools="http://schemas.android.com/tools"
      android:id="@+id/drawer_layout"
      android:layout_width="match_parent"
      android:layout_height="match_parent"&gt;
  
      &lt;LinearLayout
          android:layout_width="fill_parent"
          android:layout_height="wrap_content"
          android:layout_alignParentTop="true"
          android:orientation="vertical"&gt;
  
  
          &lt;android.support.v7.widget.Toolbar
              android:id="@+id/toolbar"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_alignParentTop="true"
              android:background="@color/primary"
              android:elevation="6dp"
              android:minHeight="?attr/actionBarSize"
              android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
              app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/&gt;
  
  
  
          &lt;android.support.design.widget.TabLayout
              android:id="@+id/tab_layout"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_below="@+id/toolbar"
              android:background="@color/primary"
              android:elevation="6dp"
              android:minHeight="?attr/actionBarSize"
              android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/&gt;
  
          &lt;android.support.v4.view.ViewPager
              android:id="@+id/pager"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_below="@+id/tab_layout"
              android:paddingTop="20dp"
              android:background="@color/windowBackground"
              android:layout_above="@id/bottomButtons"
              &gt;
          &lt;/android.support.v4.view.ViewPager&gt;
  
  
          &lt;android.support.design.widget.FloatingActionButton
              xmlns:app="http://schemas.android.com/apk/res-auto"
              android:id="@+id/fab"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:clickable="true"
              android:src="@drawable/cart"
              android:layout_margin="16dp"
              app:elevation="6dp" /&gt;
  
  
      &lt;/LinearLayout&gt;
  
      &lt;fragment
          android:id="@+id/fragment_navigation_drawer"
          android:name="com.wokoshop.sony.app.FragmentDrawer"
          android:layout_width="@dimen/nav_drawer_width"
          android:layout_height="match_parent"
          android:layout_gravity="start"
          app:layout="@layout/fragment_navigation_drawer"
          tools:layout="@layout/fragment_navigation_drawer" /&gt;
  
  
  &lt;/android.support.v4.widget.DrawerLayout&gt;
  </code></pre>
  
  <p>In this layout Floating action button is not displaying.</p>
  
  <p>Can anyone help me on this?</p>