Problems with Cancel Button and UIActionSheet

Question

How do I determine if the cancel button was pressed on a UIActionSheet?

My UIActionSheet is set up like this:

-(IBAction)fileButtonPressed
{
    UIAction         


        

Answer 1

add this

[mymenu showInView:self.parentViewController.tabBarController.view];

Answer 2

if (buttonIndex == actionSheet.cancelButtonIndex)
{
    // Handle cancel action
}

UIActionSheet also has properties like destructiveButtonIndex and firstOtherButtonIndex to compare against.

Answer 3

The trick turns out to be not to use the automatic cancel button but to add it yourself.

The other slight gotcha is to add the cancel button at the end and not at the beginning.

-(IBAction)fileButtonPressed
{
    UIActionSheet *mymenu = [[UIActionSheet alloc] 
                             initWithTitle:@"Select Folder" 
                             delegate:self 
                             cancelButtonTitle:nil 
                             destructiveButtonTitle:nil 
                             otherButtonTitles:nil];
    for (int nb=0; nb<3; nb++) 
    { 
        [mymenu addButtonWithTitle:@"Button Name"]; 
    }

    mymenu.cancelButtonIndex = [mymenu addButtonWithTitle: @"Cancel"];

    [mymenu showInView:self.view];
}

credit to this stackoverflow entry for the answer.