禁用在UITextView中剪切和复制，即使允许用户编辑文本

问题描述：

可能重复：

我有一个 UITextView 可以编辑。我有另一个按钮复制，所以我想禁用内置的复制和剪切功能的文本视图。
当在文本视图内双击时，它们显示为黑色的迷你popover。是否有任何方法只阻止这两个选项，仍然让用户编辑文本？

I have a UITextView which can be edited. I have another button for "Copy", so I want to disable the built-in "Copy" and "Cut" features of the text view. These are shown as a black mini popover when double tapping inside the text view. Is there any way to block only these two options and still let the user edit the text?

答

覆盖 canPerformAction：withSender：方法为您不想允许的操作返回 NO ：

overrides the canPerformAction:withSender: method to return NO for actions that you don't want to allow:

- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
    {
        if (action == @selector(paste:))
            return NO;
        if (action == @selector(select:))   
            return NO;   
        if (action == @selector(selectAll:))   
            return NO;  
        return [super canPerformAction:action withSender:sender];
    }

另一种方式 b

-(BOOL)canPerformAction:(SEL)action withSender:(id)sender {
    UIMenuController *menuController = [UIMenuController sharedMenuController];
    if (menuController) {
        [UIMenuController sharedMenuController].menuVisible = NO;
    }
    return NO;
}

同时检查此链接

禁用在UITextView中剪切和复制，即使允许用户编辑文本

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