android - Scale a layout to match parent with animation -

in sample project have linear layout, height set wrap content in xml , there fragment below takes remaining space. fragment contains button when clicked remove fragment , height of linear layout set match parent. tried adding android:animatelayoutchanges="true" transition wrap_content match_parent not smooth. how can animate android:layout_height="wrap_content" android:layout_height="match_parent"

here layout

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"           xmlns:tools="http://schemas.android.com/tools"           android:layout_width="match_parent"           android:layout_height="match_parent"           android:background="@drawable/bg"           android:orientation="vertical"           android:id="@+id/layoutroot"           tools:context=".mainactivity">  <linearlayout     android:layout_width="match_parent"     android:id="@+id/cloudholder"     android:orientation="vertical"     android:animatelayoutchanges="true"     android:gravity="center"     android:layout_height="wrap_content">     <imagebutton         android:layout_width="100dp"         android:layout_gravity="center"         android:layout_height="100dp"         android:background="@drawable/play"/> </linearlayout> 

you may need try adding android:animatelayoutchanges="true" in parent layout example:

<linearlayout       xmlns:android="http://schemas.android.com/apk/res/android"       xmlns:tools="http://schemas.android.com/tools"       android:layout_width="match_parent"       android:layout_height="match_parent"       android:background="@drawable/bg"       android:orientation="vertical"       android:animatelayoutchanges="true"       android:id="@+id/layoutroot"       tools:context=".mainactivity">      <linearlayout         android:layout_width="match_parent"         android:id="@+id/cloudholder"         android:orientation="vertical"         android:gravity="center"         android:layout_height="wrap_content">          <imagebutton             android:layout_width="100dp"             android:layout_gravity="center"             android:layout_height="100dp"             android:background="@drawable/play"/>      </linearlayout>  </linearlayout> 

if above code doesn't work, might need take at:

animation of height of linearlayout container valueanimator

or

animation in changing layoutparams in linearlayout