iOS UIWebView禁止用户复制剪切

加载UIWebView后禁止用户复制剪切

// 控制器实现此方法
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
    if (action == @selector(copy:) ||
        action == @selector(paste:)||
        action == @selector(cut:))
    {
        return NO;
    }
    return [super canPerformAction:action withSender:sender];
}