点击UITextField即可禁用菜单

Question

当点击UITextField时，我们如何禁用Cut-Copy-Paste或Select-SelectAll菜单。我尝试使用下面的代码，但它没有用。

if ([UIMenuController sharedMenuController]) {
    [UIMenuController sharedMenuController].menuVisible = NO;
}

Answer 1

如果是UITextView，则创建一个子类并实现此函数

- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
   if (action == @selector(paste:) || action == @selector(copy:))//and put other actions also
    return NO;
return [super canPerformAction:action withSender:sender];
}

Answer 2

canBecomeFirstResponderhere应该做到这一点。确保您委派了UITextField

- (BOOL)canBecomeFirstResponder {
    return NO;
}