Programmatically and automatically adding an integer into a UILabel? Possible? - ios

Question

I've set up a simple if statement that says if the input length is equal to 3 make the next character a "-".
It works well, but I'd like the "-" to automatically be put there after I press my button for the 3rd time. So I press, "1", "2", then when I press the "3" it automatically puts a "-" directly afterwards. Currently the "-" only gets placed when I hit the button for the 4th time?
-(IBAction)buttonDigitPressed:(id)sender {
NSString *val = phoneNumberLabel.text;
int length = [val length];
} else {
NSString *tagValue = [NSString stringWithFormat:#"%d", [sender tag]];
phoneNumberLabel.text = [val stringByAppendingString: tagValue];
if (length == 3) {
phoneNumberLabel.text = [val stringByAppendingString:#"-"];
}
if (length == 7) {
phoneNumberLabel.text = [val stringByAppendingString:#"-"];
}
}
}
Any help would be appreciated, greatly! Thanks!

Answer 1

-(IBAction)buttonDigitPressed:(id)sender {
NSString *val = phoneNumberLabel.text;
NSString *newValue = #"";
NSString *dash = #"";
int length = [val length];
if ( ((length == 3) || (length == 7)) ) {
dash = #"-";
}
newValue = [NSString stringWithFormat:#"%#%#%d", val, dash, [sender tag]];
phoneNumberLabel.text = newValue;
}

Answer 2

Add the following code in buttonClicked method
if ([myLabel.text length] == 3)
{
myLabel.text = [val stringByAppendingString:#"-"];
}

Answer 3

Just add that code in the same method after you update the label with the integer.

Answer 4

Try this method,hope it will help you.
Keep UILabel object blank in xib.
- (IBAction)pressAction:(UIButton*)sender
{
if (lbl.text.length<=2) {
lbl.text=[lbl.text stringByAppendingFormat:#"%i",sender.tag];
}
if (lbl.text.length>=3){
lbl.text=[lbl.text stringByAppendingString:#"-"];
}
}

Answer 5

You can send the button the events. like [button sendActionsForControlEvents:UIControlEventTouchUpInside]
Or even perform selector after delay may do the trick for you.
both the cases you need not press a button
For the addition of "-" just check how many characters have been entered and when the third character has been entered add the "-".