Having Crash at scaleView.setScaleX(0) in likeAnimation

[sunilsoniudaipur]

having a crash during the likeAnimation method call.
I am using the ImageView inside the SmallBang

       <xyz.hanks.library.bang.SmallBangView

        android:id="@+id/bang_icthumsup"
        android:layout_width="match_parent"
        android:layout_height="74dp">

        <ImageView
            android:id="@+id/ivthumbsup"
            android:layout_width="64dp"
            android:layout_height="64dp"
            android:layout_gravity="center_horizontal"
            android:padding="10dp"
            android:src="@drawable/ic_thumbsup" />

and Just initlize the
mSmallBang =(SmallBangView) findViewById(R.id.bang_icthumsup);
if(mSmallBang!=null)
mSmallBang.likeAnimation();

but got crash with null poiner exception for scaleView