You need to subclass UITextView and override the canPerformAction method.
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
if (action == @selector(copy:)
return NO;
return [super canPerformAction:action withSender:sender];
}
Selector values ββthat can be expected from canPerformAction can be found in the UIResponderStandardEditActions Protocol Link
A reference to the UIResponder class will also help.
canPerformAction: withSender:
, , . ; , , . YES, .