Question

I’ve added a button that I want to essentially toggle a label from “Hello World” to “Goodbye World”, right now it just says “Goodbye World” and doesn’t change….what am I doing wrong?

- (IBAction)button:(id)sender {
    NSString *mystr = @"Hello World";

    if (strcmp(label.text, mystr) == 0) {
        label.text = @"Goodbye World";
    }
    else
    {
        label.text = @"Hello World";
    }
    //label.text = [NSString stringWithFormat:@"%d", strcmp(label.text, @"Hello World")];
}

Answer 1

Try this:

if ([label.text isEqualToString:@"Hello World"]) {
        label.text = @"Goodbye World";
} 
else
{
        label.text = @"Hello World";
}