iPhone Objective-C: How to disable the "delete all" with extended backspace pressing in UITextView

Question

By "delete all," I mean what happens when you have a lot of text and you hit backspace for a few seconds, and the text view clears completely. I want to disable that function for my application. How can I do this (if it's even possible/allowed)?

Thanks in advance!!

Answer 1

Link up the delegate outlet of the text view to one of your objects, and put this in it

-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range
          replacementText:(NSString *)text
{
    if ( [text length] > 0 ) return YES; // adding = OK
    if ( range.length == 1 ) return YES; // removing one = OK
    if ( [text length] == range.length ) return NO; // remove all != OK
    return YES; // all else is ok (this includes autocorrection, cut/paste things)
}