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在背景中应用时, 响应链链长什么样?
原标题:What does the responder chain look like for an application in the background?

如果在背景中配置音频应用程序以播放音频, 您可以设置它来接收远程控制事件。 苹果 s docs 描述需要什么以及如何设置它。 关键方面之一是确保接收对象和对远程控制事件的反应能够( 将来) 成为第一个响应者 。

当应用程序在背景中时,反应器链长什么样?我熟悉反应器链及其运作方式,但我怎么知道什么物体是反应器链的一部分,当应用程序在背景中时,哪个物体成为第一个反应器?

最佳回答

由于应用程序在背景中,关键窗口和主窗口为零,所以它们不包含在响应链中,因此响应链仅包括应用程序实例及其代表。

这对我来说是一个问题, 因为我实际上希望窗口( 文件) 能够处理背景中的行动, 和你试图做的事情非常相似。 我通过使用 NSResponder s tryToPerform: with:

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