void setZIndexTransformerToBack(ZIndexTransformer zIndexTransformerToBack) {
        if (mIsAnim || mIsAddRemoveAnim) {
            return;
        }
        this.mZIndexTransformerToBack = zIndexTransformerToBack;
    }
bring the specific position card to front

@param position position
infinite-cards/src/main/java/com/bakerj/infinitecards/CardAnimationHelper.java