//! 禁止菜单 / 禁止某一个功能
UITextView *textView = [[UITextView alloc] initWithFrame:CGRectMake(100, 100, 300, 100)];
[self.view addSubview:textView];
textView.editable = NO;
textView.text = @"我的我的我的我的我的我的我的我的我的我的我的我的我的我的";
textView.selectable = NO;
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender {
if (action == @selector(copy:) || action == @selector(selectAll:) || action == @selector(paste:))
return NO;
return [super canPerformAction:action withSender:sender];
}