systemui: Fix ClassCastExceptions

        @Override

        public Drawable getDrawable(Context context) {

            // workaround: get a clean state for every new AVD

            final AnimatedVectorDrawable d = (AnimatedVectorDrawable) context.getDrawable(mResId)

                    .getConstantState().newDrawable();

            d.start();

            final Drawable d = super.getDrawable(context).getConstantState().newDrawable();

            if (d instanceof AnimatedVectorDrawable) {

                ((AnimatedVectorDrawable)d).start();

                if (mAllowAnimation) {

                    mAllowAnimation = false;

                } else {

                d.stop(); // skip directly to end state

                    ((AnimatedVectorDrawable)d).stop(); // skip directly to end state

                }

            }

            return d;

        }