objective c - UIMenuController sharedMenuController - custom menuitem for uicollectionview do not show in ios 7

Question

I'm using a UIMenuItem to perform a custom action in UICollectionView cell long press. this worked perfectly with iOS 6, but now I am converting my application to iOS 7 and Xcode 5 and it don't work. The custom item do not shown.

UIMenuItem *menuItem = [[UIMenuItem alloc] initWithTitle:@"Unfavorite"
                                                  action:@selector(unFavorite:)];
[[UIMenuController sharedMenuController] setMenuItems:[NSArray arrayWithObject:menuItem]];
[UIMenuController sharedMenuController].menuVisible = YES;

- (BOOL)collectionView:(UICollectionView *)collectionView canPerformAction:(SEL)action forItemAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender;
{
    //do not show default itens like copy, paste....
    [self becomeFirstResponder];
    return NO;
}


- (BOOL)canPerformAction:(SEL)action withSender:(id)sender {
// The selector(s) should match your UIMenuItem selector
    if (action == @selector(unFavorite:)) {
         return YES;
    }
    return NO;
}

- (void)collectionView:(UICollectionView *)collectionView
     performAction:(SEL)action
forItemAtIndexPath:(NSIndexPath *)indexPath
        withSender:(id)sender {

}

 - (BOOL)collectionView:(UICollectionView *)collectionView
 shouldShowMenuForItemAtIndexPath:(NSIndexPath *)indexPath {

    myIndexPath = indexPath;
    return YES;
}

Answer 1

I don't know about iOS 6, but in iOS 7 it's very simple. You just need the three standard collection view delegate menu-handling methods, plus an action method in the cell subclass. There is no need to play with first responder or anything like that. So, for example (in this example, Copy is a standard item but Capital is something I've added to the menu):

// collection view delegate:

- (BOOL)collectionView:(UICollectionView *)collectionView 
        shouldShowMenuForItemAtIndexPath:(NSIndexPath *)indexPath {
    UIMenuItem* mi = [[UIMenuItem alloc] initWithTitle:@"Capital" 
                      action:NSSelectorFromString(@"capital:")];
    [[UIMenuController sharedMenuController] setMenuItems:@[mi]];
    return YES;
}

- (BOOL)collectionView:(UICollectionView *)collectionView 
        canPerformAction:(SEL)action 
        forItemAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender {
    return (action == NSSelectorFromString(@"copy:") || 
            action == NSSelectorFromString(@"capital:"));
}

- (void)collectionView:(UICollectionView *)collectionView 
        performAction:(SEL)action forItemAtIndexPath:(NSIndexPath *)indexPath 
        withSender:(id)sender {
    // in real life, would do something here
    NSString* state = (self.sectionData)[indexPath.section][indexPath.row];
    if (action == NSSelectorFromString(@"copy:"))
        NSLog(@"copying %@", state);
    else if (action == NSSelectorFromString(@"capital:"))
        NSLog(@"fetching the capital of %@", state);
}

// cell subclass:

-(void)capital:(id)sender {
    // find my collection view
    UIView* v = self;
    do {
        v = v.superview;
    } while (![v isKindOfClass:[UICollectionView class]]);
    UICollectionView* cv = (UICollectionView*) v;
    // ask it what index path we are
    NSIndexPath* ip = [cv indexPathForCell:self];
    // talk to its delegate
    if (cv.delegate && 
        [cv.delegate respondsToSelector:
             @selector(collectionView:performAction:forItemAtIndexPath:withSender:)])
        [cv.delegate collectionView:cv performAction:_cmd
             forItemAtIndexPath:ip withSender:sender];
}