keyUp事件听到？：覆盖NSView方法 [英] keyUp event heard?: Overridden NSView method

问题描述

UPDATED：我现在将NSView keyUp方法从NSView子类设置替换为第一个响应者，如下所示，但仍然没有看到它被调用的证据。

UPDATED: I'm now overriding the NSView keyUp method from a NSView subclass set to first responder like below, but am still not seeing evidence that it is being called.

@implementation svsView

- (BOOL)acceptsFirstResponder {
    return YES;
}

- (void)keyUp:(NSEvent *)event {
  //--do key up stuff--
  NSLog(@"key up'd!");
}

@end

- ORIGINAL POST -
我是Cocoa和Obj-C的新手，我试图做一个（void）keyUp：从我的控制器类（其本身是NSController类型）的实现中。我不知道这是否是正确的地方。我有一系列类似的按钮，每个按钮都设置为一个唯一的键等效（IB按钮属性），每个调用my（IBAction）keyInput方法，然后将每个键的标识传递到另一个对象。这个运行很好，但是我也想跟踪每个密钥是否被发布。

--ORIGINAL POST-- I'm new to Cocoa and Obj-C and am trying to do a (void)keyUp: from within the implementation of my controller class (which itself is of type NSController). I'm not sure if this is the right place to put it, though. I have a series of like buttons each set to a unique key equivalent (IB button attribute) and each calls my (IBAction)keyInput method which then passes the identity of each key onto another object. This runs just fine, but I also want to track when each key is released.

- ORIGINAL [bad] EXAMPLE -

--ORIGINAL [bad] EXAMPLE--

@implementation svsController

//init
//IBActions

- (IBAction)keyInput:(id)sender {
  //--do key down stuff--
}

- (void)keyUp:(NSEvent *)event {
  //--do key up stuff--
}

@end

一旦失败，我也尝试使用keyUp作为IBAction（而不是void），就像用户定义的keyInput一样，并将其连接到Interface Builder中的相应按钮，但是keyUp仅在键被关闭时被调用而不是在释放时。 （我有这种想法会发生）。

Upon fail, I also tried the keyUp as an IBAction (instead of void), like the user-defined keyInput is, and hooked it up to the appropriate buttons in Interface Builder, but then keyUp was only called when the keys were down and not when released. (Which I kind of figured would happen.)

赦免我的noobery，但是我应该把这个方法放在另一个班上，或者做不同的事情吗？不管怎样，我需要它能够访问控制器类所拥有的对象。

Pardon my noobery, but should I be putting this method in another class or doing something differently? Wherever it is, though, I need it be able to access objects owned by the controller class.

感谢您有任何见解。

推荐答案

哇！我想我已经钉了我只需要使用NSView / NSWindow引用IB中的类实例化我的子类。实际上并没有在UI中创建它的一个实例。过去几个小时下来的螃蟹！不，我一路上学到了一两件事。 ;）

Wow! I think I've nailed it. I just needed to instantiate my subclass with a NSView/NSWindow reference to the class in IB. Wasn't actually creating an instance of it in the UI. The past several hours down the crapper! Sans that I learned a thing or two along the way. ;)

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