How to animate scaling of relative layout (which contains many layouts and ImageViews inside)

I tried to scale, but when scaling the layouts internally they shrink, Can anyone explain how to animate the layout without compression

need to scale letterLayout from slightly above parent bottom level up

Animation anim = new ScaleAnimation(
            1f, 1f, // Start and end values for the X axis scaling
            startScale, endScale, // Start and end values for the Y axis scaling
            Animation.RELATIVE_TO_SELF, 0f, // Pivot point of X scaling
            Animation.RELATIVE_TO_SELF, 1f); // Pivot point of Y scaling
    anim.setFillAfter(false); // Needed to keep the result of the animation
    anim.setDuration(1000);
    v.startAnimation(anim);

      

        
        
        
      

    

Layout format

<RelativeLayout 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"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.sample.LaunchScreenActivity">


    <ImageView
        android:layout_marginTop="195dp"
        android:layout_marginLeft="26dp"
        android:src="@drawable/ic_envelope_back"
        android:layout_width="308dp"
        android:layout_height="327dp" />

    <RelativeLayout

        android:id="@+id/letterLayout"
        android:layout_width="284dp"
        android:layout_height="451dp"
        android:layout_marginLeft="38dp"
        android:layout_marginTop="19dp">

        <RelativeLayout

            android:id="@+id/logo_layout"
            android:layout_width="284dp"
            android:layout_height="236dp"
            android:background="#ff33">

            <ImageView
                android:layout_centerInParent="true"
                android:src="@drawable/ic_logo_launch_screen"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />
        </RelativeLayout>

        <RelativeLayout
            android:background="#ff3344"
            android:layout_below="@id/logo_layout"
            android:layout_width="284dp"
            android:layout_height="215dp">

            <Button
                android:layout_width="160dp"
                android:layout_height="41dp"
                android:layout_marginTop="30dp"
                android:layout_centerHorizontal="true"
                android:background="#FC5D2D"
                android:text="brinblox_login"
                android:textColor="#ffff"/>

        </RelativeLayout>
    </RelativeLayout>


    <FrameLayout
        android:layout_marginTop="316dp"
        android:layout_width="308dp"
        android:layout_height="206dp"
        android:layout_marginLeft="26dp">

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:src="@drawable/ic_envelope_front"/>
    </FrameLayout>
</RelativeLayout>