title: Dim and Blur Background Behind Fragment Android
body: <p>So I have a custom "dialog" of sorts, it's really just a fragment inside a framelayout.
  Anyway, I want it to blur and dim the anything that is behind it once its displayed.
  I am currently using this, inside the onCreateView </p>
  
  <pre><code>  // Dim and blur background
      getActivity().getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
      getActivity().getWindow().addFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
  </code></pre>
  
  <p>However, this is not blurring or dimming the other framelayout which contains a RecyclerView and a CardView, these elements are still being shown in full opacity, not sure why?</p>
  
  <p>Here is a screeshot, as you can see the background gets blurred but not all the views behind the fragment get dimmed</p>
  
  <p><a href="https://i.stack.imgur.com/yU5VY.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yU5VY.png" alt="enter image description here"></a></p>
  
  <p>I'd like to be able to achieve the look that NavigationDrawer has when you open it, here is an example inside the same app and everything is being dimmed and blurred correctly.</p>
  
  <p><a href="https://i.stack.imgur.com/pkUSt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/pkUSt.png" alt="enter image description here"></a></p>
  
  <p>Here is my XML file incase it helps,</p>
  
  <pre><code>&lt;android.support.design.widget.CoordinatorLayout 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"
  xmlns:fab="http://schemas.android.com/apk/res-auto"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:fitsSystemWindows="true"
  tools:context=".controllers.MainActivity"
  android:id="@+id/app_bar_main_layout"&gt;
  
  &lt;android.support.design.widget.AppBarLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:theme="@style/AppTheme.AppBarOverlay"&gt;
  
      &lt;android.support.v7.widget.Toolbar
          android:id="@+id/toolbar"
          android:layout_width="match_parent"
          android:layout_height="?attr/actionBarSize"
          android:background="?attr/colorPrimary"
          app:popupTheme="@style/AppTheme.PopupOverlay" /&gt;
  
  &lt;/android.support.design.widget.AppBarLayout&gt;
  
   // This is the framelayout for a fragment
   // The fragment contains a RecyclerView and a CardView
   // This is what I would like to be dimmed.
  &lt;FrameLayout
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:id="@+id/frame_layout_container"
      android:background="@color/colorCardDisplayBackground"
      app:layout_behavior="@string/appbar_scrolling_view_behavior"&gt;
  &lt;/FrameLayout&gt;
  
  
   // This is my custom "Dialog" fragment
  &lt;FrameLayout
      android:elevation="6dp"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_gravity="center"
      android:id="@+id/card_fragment_container"&gt;
  
      &lt;ImageButton
          android:layout_width="48dp"
          android:layout_height="48dp"
          android:layout_marginBottom="10dp"
          android:layout_marginTop="10dp"
          android:layout_gravity="bottom|end"
          android:layout_marginRight="15dp"
          android:background="@drawable/round_button_background"
          android:elevation="8dp"
          android:src="@drawable/ic_done_white_24dp"
          android:scaleType="center"
          android:visibility="gone"
          android:id="@+id/final_confirm_card_button"/&gt;
  &lt;/FrameLayout&gt;
  
  &lt;com.getbase.floatingactionbutton.FloatingActionButton
      android:layout_width="wrap_content"
      android:id="@+id/mainFab"
      android:layout_height="wrap_content"
      fab:fab_icon="@drawable/ic_add_white_48dp"
      fab:fab_colorNormal="@color/colorAccent"
      fab:fab_colorPressed="@color/colorAccentLight"
      android:layout_gravity="bottom|end" /&gt;
  </code></pre>
  
  <p></p>