If using Xcode to make an iOS calculator, how would I add a decimal button?

Question

How to add a decimal button so I don\'t have to do whole numbers? If i wanted any decimal number like 1.2 or 100.4 or 3.0 or anything like that, how would I add it to the calcul

Answer 1

- (IBAction)Decimal:(id)sender{
    NSString *currentText = Text.text;
    if ([currentText rangeOfString:@"." options:NSBackwardsSearch].length == 0) {
        Text.text = [Text.text stringByAppendingString:@"."];  
    }
}