Question

I need to add an action button in my iPhone application. When that one is clicked the UIActionSheet with buttons need to be popped up.
Can any one tell me how to add an action button? – means is there any in built action button for iPhone app? or do we need to create a new button with image?

Thanks in advance!

Answer 1

Assuming this is in a view controller, you can do something like:

- (void)viewDidLoad
{
    UIBarButtonItem *actionButton = [[UIBarButtonItem alloc]
            initWithBarButtonSystemItem:UIBarButtonSystemItemAction
            target:self
            action:@selector(methodThatShowsSheet)];
    self.navigationItem.rightBarButtonItem = actionButton;
    [actionButton release];
}

(Pardon the weird indentation to make it fit in a reasonable width (I normally just let Xcode wrap-indent everything automatically)).

See Nick Veys’ answer for how to implement methodThatShowsSheet.