Android layout renders wrong on Marshmallow -

i have noticed android app layout broken when displayed on marshmallow. fine on nexus 5 android 5.1.1 renders wrong on nexus 5 , nexus 5x latest version of android.

the layout consist of little triangle (see red part) aligned bottom , above there view (white) should span available height of parent (grey part).

and how renders on android 5.1.1 (nexus 5):

while on android 6.0 (nexus 5 , nexus 5x) is:

the problem looks red view doesn't respect parent alignment (bottom, right) , makes white view (which placed above) disappear.

the simplified layout of grey view , children (i have added background colours see view bounds):

<?xml version="1.0" encoding="utf-8"?> <relativelayout     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:background="#777777">      <view          android:id="@+id/preview_triangle"         android:layout_width="@dimen/preview_triangle_width"         android:layout_height="@dimen/preview_triangle_height"         android:layout_marginright="@dimen/preview_triangle_margin_right"         android:layout_alignparentright="true"         android:layout_alignparentbottom="true"         android:background="#ff0000"/>      <linearlayout         android:layout_width="match_parent"         android:layout_height="match_parent"         android:layout_above="@id/preview_triangle"            android:orientation="horizontal">         <view             android:layout_width="@dimen/preview_margin_horizontal"             android:layout_height="match_parent"/>         <framelayout             android:layout_width="0dp"             android:layout_height="match_parent"             android:layout_weight="1"             android:padding="3dp"             android:background="@drawable/round_rectangle_white_radius_3dp">             <webview                 android:id="@+id/preview_webview"                 android:layout_width="match_parent"                 android:layout_height="match_parent"/>         </framelayout>          <framelayout             android:id="@+id/preview_close"             android:layout_width="@dimen/preview_margin_horizontal"             android:layout_height="@dimen/preview_margin_horizontal">             <imageview                           android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:layout_gravity="left|top"                 android:layout_marginleft="@dimen/preview_close_margin_left"                 android:src="@drawable/icn_close"                 android:contentdescription="@null"/>             </framelayout>     </linearlayout>       </relativelayout> 

the above layout placed separate preview.xml file , included main layout this:

<include         android:id="@+id/fragment_main_loyalty_preview_container"         android:layout_width="match_parent"         android:layout_height="0dp"         android:layout_below="@id/fragment_main_loyalty_logo_container"         android:layout_above="@id/fragment_main_loyalty_buttons_container"         android:layout_margintop="@dimen/fragment_main_loyalty_preview_container_margin_top"         android:layout_marginbottom="@dimen/fragment_main_loyalty_preview_container_margin_bottom"               android:visibility="visible"         layout="@layout/preview"/> 

update

the problem disappears if replace hosting scrollview framelayout or so.

i don't why intermediary parent renders fine , child affected top parent :)

and situation can reproduced inside eclipse switching target api in designer.

update - simplified test case

below simplest layout able create , reproduce problem. red area should placed between green , blue ones. height of red area should match space available between green , blue views there view (see @id/margin_placeholder) height affects distance between these two.

inside red area wanted put white view @ bottom of red area. , little white fellow renders different way on android 6.0:

<scrollview     xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical">      <relativelayout         android:layout_width="match_parent"         android:layout_height="wrap_content">          <framelayout             android:id="@+id/top"             android:layout_width="match_parent"             android:layout_height="90dp"             android:layout_margintop="10dp"             android:background="#007700"/>          <view             android:id="@+id/margin_placeholder"             android:layout_width="match_parent"             android:layout_height="100dp"             android:layout_below="@id/top"/>          <framelayout             android:id="@+id/bottom"             android:layout_width="match_parent"             android:layout_height="90dp"             android:layout_below="@id/margin_placeholder"             android:background="#000077"/>          <relativelayout             android:id="@+id/middle"             android:layout_width="match_parent"             android:layout_height="0dp"             android:layout_below="@id/top"             android:layout_above="@id/bottom"             android:layout_margintop="10dp"             android:layout_marginbottom="10dp"             android:background="#770000">             <view                 android:layout_width="16dp"                 android:layout_height="8dp"                 android:layout_marginright="16dp"                 android:layout_alignparentbottom="true"                 android:layout_alignparentright="true"                 android:background="#ffffff"/>         </relativelayout>            </relativelayout> </scrollview> 

it renders fine if upgrade targetsdkversion 16 20.