iphone - UIMenuController not showing up

Question

I'm trying to create a custom UIMenuController and display it in my view. Here's my code:

UIMenuController *menuController = [UIMenuController sharedMenuController];
    UIMenuItem *listMenuItem = [[UIMenuItem alloc] initWithTitle:@"List" action:@selector(addList:)];

    [menuController setMenuItems:[NSArray arrayWithObject:listMenuItem]];
    [menuController setTargetRect:CGRectMake(50.0, 50.0, 0, 0) inView:self.view];
    [menuController setMenuVisible:YES animated:YES];

    [listMenuItem release];

There are no errors or exceptions, but the menu controller just doesn't show up.

Answer 1

You need to do three things:

1. You need to call -becomeFirstResponder on the view or view controller.
2. Your view or view controller needs to implement -canBecomeFirstResponder (returning YES).
3. Optionally, your view or view controller can implement -canPerformAction:action withSender:sender to show/hide menu items on an individual basis.