Capture Backspace , is this a OK solution?

Question

Hello,

I having a hard time to capture the backspace button in a UITextView. I am trying to capture it in the method

- (BOOL)textView:(UITextView *)textView 
         shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text

I thought it was ok to do like this.

if([text isEqualToString:@"\b") {  // code ... }

But for some reason, when backspace is pressed 'text' is empty.
I know I can compare lenght of the UITextView but it isnt what I want to achieve.

So I found a solution to this. If I look at '[text lenght]' every key on the defaultkeyboard returns >0 . Every key excepts the backspace wich is 0. In that way i know when backspace is pressed.
I do this check.

if([text lenght] == 0) {   // BACKSPACE PRESSED   } 

What is your opinion about this? -or can I do it in a better way?

EDIT: As David Gelhar told me, this wont work cus CUT will trigger ([text lenght] == 0) aswell.

Anyone that can point me to the correct directions here?

Regards. - Martin

Answer 1

You should also test what happens when the user does a CUT...