iPhone toggle button implementation

Question

I would like to create a toggle button in my iPhone application. However, I don\'t know exactly what would be the best approach for this.

I am considering two options.

Answer 1

-(IBAction)toggle{
    if (button.selected == NO) {
        button.selected = YES;

    }
    else {
        button.selected = NO;
    }
}

or

-(IBAction)toggle:(UIButton*)sender
{
sender.selected = !sender.selected;
}

simple dude