code: void stopAnimation() {
          mAnimation = null;
          mTransformation = null;
          if (mIndeterminateDrawable instanceof Animatable) {
              ((Animatable) mIndeterminateDrawable).stop();
              mShouldStartAnimationDrawable = false;
          }
          postInvalidate();
      }
docs: <p>Stop the indeterminate progress animation.</p>