iPhone/iPad context menu

Question

Im talking about the menu that shows up when you select a block of text it gives you the option to cut/paste/copy. I figured out how to add one more option to the menu, but

Answer 1

You need to use a UIMenuController. If you don't want Copy/Paste/Cut, you'll include something like this in your canPerformAction: method:

- (BOOL)canPerformAction:(SEL)action withSender:(id)sender {
     if(action == @selector(someSelector:))
         return YES;
     else 
         return NO;
}

Creating a new menu item looks like this:

UIMenuItem *someAction = [[UIMenuItem alloc]initWithTitle:@"Something" action:@selector(doSomething:)];

UIMenuController *menu = [UIMenuController sharedMenuController];
menu.menuItems = [NSArray arrayWithObject:someAction];
[menu update];

Answer 2

I assume your talking about UIMenuController. If you don't want to see Copy/Paste/Cut/Delete/Select/SelectAll you will need to add the following code to your UITextField's or UITextView's delegate:

- (BOOL)canPerformAction: (SEL)action withSender: (id)sender {
    BOOL answer = NO;
    if (action == @selector(item1)) {
        answer = YES;
    }
    if (action == @selector(item2)) {
        answer = YES;
    }
    return answer;
}

Where item1 and item2 are the names of the objects in UIMenuController.menuItems.

In my experience if you are using a UITextView the Copy, Paste, Cut and Select All menu items will remain, in this case add the following code to a subclass of UITextView.

- (BOOL) canPerformAction:(SEL)action withSender:(id)sender {
    if (action == @selector(cut:) || action == @selector(copy:) || action == @selector(paste:) || action == @selector(selectAll:)) {
            return YES;
    }
}