title: Overlapping views in coordinatorlayout
body: <p>The code is below. When fragment loads, it covers the toolbar and my floating action bar. How can I handle this?  I want the toolbar to show. It seems there is some overlapping in coordinatorlayout. I have checked out different problems like this. None seems to answer my question      </p>
  
  <pre><code>    &lt;?xml version="1.0" encoding="utf-8"?&gt;
      &lt;android.support.design.widget.CoordinatorLayout
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:padding="@dimen/activity_horizontal_margin"
      android:orientation="vertical"
      tools:context="com.example.sammybobo.moglis.MoGLISMaps"
      xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:android="http://schemas.android.com/apk/res-auto"
      xmlns:tools="http://schemas.android.com/tools"&gt;
  
      &lt;android.support.v7.widget.Toolbar
          android:layout_width="fill_parent"
          xmlns:android="http://schemas.android.com/apk/res/android"
          android:layout_height="?attr/actionBarSize"
          android:id="@+id/toolbar"
          android:elevation="4dp"
          android:theme="@style/ThemeOverlay.AppCompat.ActionBar"
          android:popupTheme="@style/ThemeOverlay.AppCompat.Light"/&gt;
  
      &lt;android.support.design.widget.FloatingActionButton
          android:id = "@+id/fab"
          android:layout_height="wrap_content"
          android:layout_width="wrap_content"
          android:src = "@android:drawable/ic_input_add"
          android:layout_gravity = "bottom|end"
          app:fabSize = "mini"&gt;
  
      &lt;/android.support.design.widget.FloatingActionButton&gt;
  
      &lt;fragment
          android:layout_width="match_parent"
          android:layout_height="200dp"
          android:id="@+id/main_map"
          android:name="com.google.android.gms.maps.SupportMapFragment"
          xmlns:android="http://schemas.android.com/apk/res/android"
          tools:context = "com.example.sammybobo.moglis.MoGLISMaps"
          xmlns:tools="http://schemas.android.com/tools"
          /&gt;
   &lt;LinearLayout
          android:layout_width="fill_parent"
          android:layout_height="wrap_content"
          android:background="#fff"
          android:layout_gravity = "bottom"
          &gt;
          &lt;Button
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:layout_weight="1"
              android:text="My location"
              android:onClick="observe"/&gt;
  
          &lt;Button
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:layout_weight="1"
              android:text = "Friends"/&gt;
  
          &lt;Button
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:layout_weight="1"
              android:text = "settings"/&gt;
      &lt;/LinearLayout&gt;
      &lt;/android.support.design.widget.CoordinatorLayout&gt;
  </code></pre>