android:fitsSystemWindows not working

Question

In my theme I defined the following rules to draw my views behind the status bar:

<item name="android:statusBarColor">@android:color/transparent</item> <item name="android:windowDrawsSystemBarBackgrounds">true</item> 

And in the Activity (onCreate):

getWindow.getDecorView.setSystemUiVisibility(     View.SYSTEM_UI_FLAG_LAYOUT_STABLE |     View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN ) 

Then, in my View im using a Barcodescanner that is supposed to draw behind the status bar, which is working. However when I apply the android:fitsSystemWindows to any child view they don't get their position adjusted. It's working when I apply it to the root element, though.

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"              android:layout_width="wrap_content"              android:layout_height="wrap_content">      <my.Scanner         android:id="@+id/scanner"         android:layout_width="match_parent"         android:layout_height="match_parent" />      <FrameLayout android:layout_width="match_parent"                  android:layout_height="match_parent"                  android:fitsSystemWindows="true"> <!-- Should receive a top padding, right? -->          <View android:layout_width="50dp"               android:layout_height="50dp"               android:background="@color/red" />      </FrameLayout>  </FrameLayout> 

Answer 1

Use CoordinatorLayout as root for your view, it worked for me.

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" android:fitsSystemWindows="true">