从UIMenuController删除副本并定义 [英] Remove copy and define from UIMenuController

问题描述

我有UIWebView用于显示一些文章.我需要从UIWebView中选择一些文本并使用书签.所以我使用的是selection = [wbCont stringByEvaluatingJavaScriptFromString:@"window.getSelection().toString()"];，但是当我长按UIMenuItem时，显示的是copy，define.我阅读了一些文档，并使用了canPerformAction:复制NO.但是它仍然显示.

I have UIWebView for displaying some articles. I need to select some text from UIWebView and use bookmark. So i'm using selection = [wbCont stringByEvaluatingJavaScriptFromString:@"window.getSelection().toString()"]; But when i longpress the UIMenuItem displays with copy,define. I read some doc and used canPerformAction: copy NO. But still it displaying.

- (void)viewDidLoad
{
[wbCont loadHTMLString:webString baseURL:nil];
    [self.view addSubview:wbCont];
 NSMutableArray *items = [[[UIMenuController sharedMenuController] menuItems] mutableCopy];
    if (!items) items = [[NSMutableArray alloc] init];

    UIMenuItem *menuItem;
    menuItem = [[UIMenuItem alloc] initWithTitle:@"BookMark" action:@selector(book:)];
    [items addObject:menuItem];
    [menuItem release];
    menuItem = [[UIMenuItem alloc] initWithTitle:@"Note" action:@selector(note:)];
    [items addObject:menuItem];
    [menuItem release];

   [[UIMenuController sharedMenuController] setMenuItems:items];


    [items release];
}



- (BOOL) canPerformAction:(SEL)action withSender:(id)sender
{


 if (action == @selector(copy:))
 {

 return NO;

 }
    if (action == @selector(book:))
    {
        return YES;
    }
    else if (action == @selector(note:))
    {
        return YES;
    }

    return [super canPerformAction:action withSender:sender];


}

推荐答案

您必须将UIWebView子类化. (创建一个新的Objective-C类并选择UIWebView的子类.)

You have to subclass UIWebView. (Create a new Objective-C class and select subclass of UIWebView).

在您的子类中编写方法:

Within your subclass write the method:

- (BOOL) canPerformAction:(SEL)action withSender:(id)sender{
 if (action == @selector(copy:))
 {

 return NO;

 }
    return [super canPerformAction:action withSender:sender];
}

如果要在自定义选择器中添加自定义选择器，则无需在其中设置自己的自定义选择器(因为我想这就是您要做的事情).

You don't need to set you own custom selectors there if you are adding them inside your contoller (as I guess that's what you where doing).

更多详细信息可以在这里找到:如何做您真的从UIMenuController删除了复制

More details can be found here: How do you REALLY remove Copy from UIMenuController

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