Error: Can't hide ballPulseIndicator

[Sacchid]

java code: BallPulseIndicator ballPulseIndicator ; AVLoadingIndicatorView avi ; ballPulseIndicator = new BallPulseIndicator(); avi = new AVLoadingIndicatorView(Permission.this); avi.setIndicator(ballPulseIndicator);
xml code : <com.wang.avi.AVLoadingIndicatorView android:id="@+id/bottom_progress" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="11dp" style="@style/AVLoadingIndicatorView" app:indicatorName="BallPulseIndicator" android:layout_gravity="bottom|center_horizontal" android:layout_marginBottom="22dp" />
Now avi.smoothToHide();//NOT WORKING
Also avi.hide(); , avi.setVisibility(View.INVISIBLE); , stopAnim(); are not working
Thanking you in anticipation.

谢谢