public void add(SliderItem item, int position) {
if (item.mSliderMenu != null) {
throw new IllegalArgumentException(
"Item already has a parent: " + item + " (" + item.mSliderMenu + ")");
}
item.mSliderMenu = this;
mItems.add(position, item);
notifyChanged();
}
public void remove(SliderItem item) {
if (mItems.remove(item)) {
item.mSliderMenu = null;
}
notifyChanged();
}