code: private void initShadowXOffset(TypedArray attrs) {
  		int index = R.styleable.ActionButton_shadow_xOffset;
  		if (attrs.hasValue(index)) {
  			shadowXOffset = attrs.getDimension(index, shadowXOffset);
  			LOGGER.trace("Initialized Action Button X-axis offset: {}", getShadowXOffset());
  		}
  	}
docs: Initializes the shadow X-axis offset
  
  @param attrs attributes of the XML tag that is inflating the view