UIMenuController doesn't show in a second UIViewController - iphone

Question

I have two UIViewController, one is the main and from this trough a button you can go to the second. In SecondView.m I have the following code:
- (IBAction)showpopup:(id)sender {
[self becomeFirstResponder];
UIMenuController *sharedController = [UIMenuController sharedMenuController];
UIMenuItem *x2 = [[UIMenuItem alloc] initWithTitle:#"2x2" action: #selector(mat)];
UIMenuItem *x3 = [[UIMenuItem alloc] initWithTitle:#"3x3" action: #selector(mat)];
UIMenuItem *x4 = [[UIMenuItem alloc] initWithTitle:#"4x4" action: #selector(mat)];
UIMenuItem *x5 = [[UIMenuItem alloc] initWithTitle:#"5x5" action: #selector(mat)];
NSArray *menuArray = [NSArray arrayWithObjects: x2,x3,x4,x5, nil];
CGRect drawRect = [sender convertRect:[sender bounds] toView: self.view];
[sharedController setTargetRect:drawRect inView: self.view];
[sharedController setMenuItems:menuArray];
[sharedController setMenuVisible:YES animated:YES];
[sharedController setMenuItems: nil];
}
-(BOOL)canBecomeFirstResponder{
return YES;
}
-(int)mat:(id)sender{
return 0;
}
The Button is linked as "touch up inside", but when I run the UIMenuController doesn't show up.
The exact same code works in the main UIViewController.
Thanks

Answer 1

If I am not missing anything, I think you should, e.g., add your sharedController.view as a subview to your mainController.view, e.g. (assuming that `showpopup is defined in your main controller):
- (IBAction)showpopup:(id)sender {
[self becomeFirstResponder];
UIMenuController *sharedController = [UIMenuController sharedMenuController];
...
[sharedController setMenuItems:menuArray];
[sharedController setMenuVisible:YES animated:YES];
[sharedController setMenuItems: nil];
[self.view addSubview:sharedController.view];
}
or you could present modally your sharedController (replace the addSubview line above):
[self presentViewController:sharedController animated:YES completion:nil];
In any case, it seems to me that the "presenting" bit is missing.