iOS: How to get the selected UIMenuItem from UIMenuController - ios

Question

I am trying to use UIMenuCnotroller to show a list of dynamically generated items, they share the same action method, and so I need to know which item is selected in the single action method.
However, in the action method - (void)menuItemAction:(id)sender;the sender is actually the UIMenuController object, and I didn't find any method of UIMenuController can tell me which menuitem is selected.
One solution I can think of is to dynamically generate different action selectors for different items, and do some tricks in forwardInvocation
But is there any easier way?

Answer 1

You can use UIMenuCnotroller like:
1) creation:
UIMenuController *menuController = [UIMenuController sharedMenuController];
UIMenuItem *open = [[UIMenuItem alloc] initWithTitle:#"Open" action:#selector(open:)];
UIMenuItem *reDownload = [[UIMenuItem alloc] initWithTitle:#"Re-Download" action:#selector(reDownload:)];
[menuController setMenuItems:[NSArray arrayWithObjects:open, reDownload, nil]];
[menuController setTargetRect:cell.frame inView:self.view];
[menuController setMenuVisible:YES animated:YES];
[open release];
[reDownload release];
2) To catch actions should implement next methods:
- (BOOL) canPerformAction:(SEL)selector withSender:(id) sender
{
if (selector == #selector(open:))
{
return YES;
}
if (selector == #selector(reDownload:))
{
return YES;
}
return NO;
}
- (BOOL) canBecomeFirstResponder
{
return YES;
}
3) And realization of yours methods:
- (void) open:(id) sender
{
[self doSomething];
}
- (void) reDownload:(id) sender
{
[self doSomething];
}
Hope, this helps.

Answer 2

Okay, I've solved this one. It involves messing with [NSObject forwardInvocation:] and is a bit dirty, but the resulting code is quite minimal. Answered over here: https://stackoverflow.com/a/9874092/790036

Answer 3

One easiest way would be to use different #selector method for each menu item
Examples:
UIMenuItem *oneObj = [[UIMenuItem alloc] initWithTitle:#"One" action:#selector(One:)];
UIMenuItem *twoObj = [[UIMenuItem alloc] initWithTitle:#"Two" action:#selector(Two:)];