public boolean performItemAction(MenuItem item, int flags) {
MenuItemImpl itemImpl = (MenuItemImpl) item;
if (itemImpl == null || !itemImpl.isEnabled()) {
return false;
}
boolean invoked = itemImpl.invoke();
final ActionProvider provider = item.getActionProvider();
final boolean providerHasSubMenu = provider != null && provider.hasSubMenu();
if (itemImpl.hasCollapsibleActionView()) {
invoked |= itemImpl.expandActionView();
if (invoked) close(true);
} else if (itemImpl.hasSubMenu() || providerHasSubMenu) {
close(false);
if (!itemImpl.hasSubMenu()) {
itemImpl.setSubMenu(new SubMenuBuilder(getContext(), this, itemImpl));
}
final SubMenuBuilder subMenu = (SubMenuBuilder) itemImpl.getSubMenu();
if (providerHasSubMenu) {
provider.onPrepareSubMenu(subMenu);
}
invoked |= dispatchSubMenuSelected(subMenu);
if (!invoked) close(true);
} else {
if ((flags & FLAG_PERFORM_NO_CLOSE) == 0) {
close(true);
}
}
return invoked;
}
public SubMenu addSubMenu(int group, int id, int categoryOrder, CharSequence title) {
final MenuItemImpl item = (MenuItemImpl) addInternal(group, id, categoryOrder, title);
final SubMenuBuilder subMenu = new SubMenuBuilder(mContext, this, item);
item.setSubMenu(subMenu);
return subMenu;
}
@Override
public SubMenu addSubMenu(int groupId, int itemId, int order, CharSequence title) {
final MenuItem item =
new MenuItemImpl(mContext)
.setGroupId(groupId)
.setItemId(itemId)
.setOrder(order)
.setTitle(title);
final SubMenu subMenu = new SubMenuImpl(mContext, item);
((MenuItemImpl) item).setSubMenu(subMenu);
if (order != 0) {
mMenuItems.add(order, item);
} else {
mMenuItems.add(item);
}
return subMenu;
}
