public void restoreActionViewStates(Bundle states) {
if (states == null) {
return;
}
SparseArray<Parcelable> viewStates = states.getSparseParcelableArray(getActionViewStatesKey());
final int itemCount = size();
for (int i = 0; i < itemCount; i++) {
final MenuItem item = getItem(i);
final View v = item.getActionView();
if (v != null && v.getId() != View.NO_ID) {
v.restoreHierarchyState(viewStates);
}
if (item.hasSubMenu()) {
final SubMenuBuilder subMenu = (SubMenuBuilder) item.getSubMenu();
subMenu.restoreActionViewStates(states);
}
}
final int expandedId = states.getInt(EXPANDED_ACTION_VIEW_ID);
if (expandedId > 0) {
MenuItem itemToExpand = findItem(expandedId);
if (itemToExpand != null) {
itemToExpand.expandActionView();
}
}
}
public boolean performItemAction(MenuItem item, int flags) {
MenuItemImpl itemImpl = (MenuItemImpl) item;
if (itemImpl == null || !itemImpl.isEnabled()) {
return false;
}
boolean invoked = itemImpl.invoke();
if (itemImpl.hasCollapsibleActionView()) {
invoked |= itemImpl.expandActionView();
if (invoked) close(true);
} else if (item.hasSubMenu()) {
close(false);
final SubMenuBuilder subMenu = (SubMenuBuilder) item.getSubMenu();
final ActionProvider provider = item.getActionProvider();
if (provider != null && provider.hasSubMenu()) {
provider.onPrepareSubMenu(subMenu);
}
invoked |= dispatchSubMenuSelected(subMenu);
if (!invoked) close(true);
} else {
if ((flags & FLAG_PERFORM_NO_CLOSE) == 0) {
close(true);
}
}
return invoked;
}
public void saveActionViewStates(Bundle outStates) {
SparseArray<Parcelable> viewStates = null;
final int itemCount = size();
for (int i = 0; i < itemCount; i++) {
final MenuItem item = getItem(i);
final View v = item.getActionView();
if (v != null && v.getId() != View.NO_ID) {
if (viewStates == null) {
viewStates = new SparseArray<Parcelable>();
}
v.saveHierarchyState(viewStates);
if (item.isActionViewExpanded()) {
outStates.putInt(EXPANDED_ACTION_VIEW_ID, item.getItemId());
}
}
if (item.hasSubMenu()) {
final SubMenuBuilder subMenu = (SubMenuBuilder) item.getSubMenu();
subMenu.saveActionViewStates(outStates);
}
}
if (viewStates != null) {
outStates.putSparseParcelableArray(getActionViewStatesKey(), viewStates);
}
}
@Override
public void onRestoreInstanceState(Parcelable state) {
SavedState saved = (SavedState) state;
if (saved.openSubMenuId > 0) {
MenuItem item = mMenu.findItem(saved.openSubMenuId);
if (item != null) {
SubMenuBuilder subMenu = (SubMenuBuilder) item.getSubMenu();
onSubMenuSelected(subMenu);
}
}
}