android - Animate(ScaleAnimation) LinearLayout when it's height changes due to add/removal of view inside it -

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i have linearlayout & have 2 textviews inside it. dynamically want hide 1 textview or can add textviews @ runtime. problem when textview disappears linearlayout collapses in no time. want animate linearlayout(scaleanimation) when views removed linearlayout.

activity_main.xml

<relativelayout 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:paddingbottom="@dimen/activity_vertical_margin"       android:paddingleft="@dimen/activity_horizontal_margin"       android:paddingright="@dimen/activity_horizontal_margin"       android:paddingtop="@dimen/activity_vertical_margin"       tools:context=".mainactivity" >    <linearlayout     android:id="@+id/linearlayout1"     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:layout_margin="10dp"     android:background="#000"     android:orientation="vertical" >      <linearlayout         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:layout_margin="1dp"         android:background="#fff"         android:orientation="vertical"         android:padding="10dp" >          <textview             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:layout_marginbottom="10dp"             android:text="hello, world" />          <textview             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:layout_marginbottom="10dp"             android:text="hello, world 2" />     </linearlayout>     </linearlayout>    <button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_alignparentbottom="true"        android:text="remove textview" />  </relativelayout>

snapshot of layout... enter image description here

i want animate linearlayout when second textview got removed linearlayout & if textview got added linearlayout. scaleanimation above task don't know values required type of animation.

pretty sure not need anymore, future searchers:

for remove animation, possible make item invisible using view.setvisibility(view.invisible) , after animation (addanimationlistener) effectually remove linear layout. when view invisible parent keeps measuring it.


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