Programmatically fire button click event?

Why not just execute the code that executes when the user presses the button?

-(void)myMethod
{
   // do stuff
}

-(IBAction)myButtonClick:(id)sender
{
    [self myMethod];
}

-(void)clickMyButton
{
    [self myMethod];
    // OR
    [self myButtonClick:nil];
}

Sort of like Ken's answer, but more flexible as it'll keep track of the buttons actual actions if you change them or add more than one.

[button sendActionsForControlEvents:UIControlEventTouchUpInside];

I had the same issue as above. I would have posted a comment, but my reputation isn't high enough. So, I will instead post the full answer:

[btn setHighlighted:YES];
[btn sendActionsForControlEvents:UIControlEventTouchUpInside];
[btn performSelector:@selector(setHighlighted:) withObject:NO afterDelay:0.25];

This will programmatically hit the button and highlight it for a seemingly normal amount of time. Richie's suggestion didn't work as the button was only highlighted (if at all) for an imperceptible amount of time.