我自己也有这个问题。我已经在IB中构建了视图的骨架(只是一个视图和一个TableView)，委托没有设置。我把它连接到文件的所有者，它就像一个魅力。::保存::

我有这个问题，当我的TableViewController的类名在接口生成器中设置不正确时。

tableView?.allowsSelection = true

在Xcode 11.7中默认为False

如果UITapGestureRecognizer出现问题，你可以修复这个:

在故事板:

在Objective-C代码中:

UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissKeyboard)]; 
[self.view addGestureRecognizer:tap];

[tap setCancelsTouchesInView:NO];

Swift代码:

let tap = UITapGestureRecognizer(target: self, action:Selector("dismissKeyboard"))
view.addGestureRecognizer(tap)

tap.cancelsTouchesInView = false

我的问题不在上面。太差劲了。但我想我应该把它列在这里，也许它能帮助到别人。

I have a tableViewController that is my "base" controller and then I create subclasses of this controller. I was writing all my code in the tableView:didSelectRowAtIndexPath routine in the "base" class. Completely forgetting that by default this routine had also been created (albeit with no code that did anything) in all of my subclasses as well. So when I ran my app, it ran the subclass version of the code, did nothing, and made me sad. So of course, once I removed the routine from the subclasses, it used mt "base" class routine and I'm in business.

我知道。别笑。但也许这能帮别人省下我浪费的一小时…

另一件可能导致问题的事情是不被选择的选择类型:

正常选择应为单选择，不应为无选择。

要以编程方式做到这一点，请执行:

tableView.allowsSelection = YES