How to override property setter?

Question

Need to override property setter of the parent class. In order to temporary block assignment. For example - selectedRange property of the UITextView. How can I do this ? Thanks.

Answer 1

-(void)setFoo:(Foo *)newFoo {
  // Do something.
  [super setFoo: newFoo];
}

If you want to block the setter sometimes,

-(void)setFoo:(Foo *)newFoo {
  if (someCondition) {
    [super setFoo: newFoo];
  }
}