Question

How can I make a button that says “Show Picture” and when it’s clicked it changes to “Hide Picture”. I’m new to objective C, I know how to make a button in interface builder but don’t know how to switch the button’s text and function. Can someone help me out?

Answer 1

abuse the .tag property of the button. Hook up the touch down action to this function:

-(IBAction)buttonClick:(UIButton*)sender
{
    if ( sender.tag )
    {
        sender.tag = 0;
        sender.text = @"Show Picture";
        // do actions when "hide" is clicked
    } else {
        sender.tag = 1;
        sender.text = @"Hide Picture";
        // do actions when "show" is clicked
    }
}