如何创建以"Open ..."启动的基于文档的OS X应用程序；对话 [英] How to Create a Document-Based OS X App that Launches with "Open..." Dialog

问题描述

我曾经用一个窗口来开发非基于文档的应用程序，但是现在我正在使用基于文档的应用程序，该应用程序是使用Xcode 5中基于文档的模板创建的.启动后会生成一个新的无标题文档.我希望我的应用程序不像自动创建一个新文档那样显示打开..."对话框，就像Xcode，TextEdit和其他Apple应用程序一样.我该如何实施呢?是否可以在某处设置一个标志来显示该对话框而不是一个新文档，还是必须创建一个应用程序委托以在启动时显示该对话框?感谢您的建议.

I am used to developing non-document-based applications with a single window, but now I am working on a document based application that I created using the document-based template in Xcode 5. When I run my application, it opens a new untitled document upon launch. Instead of automatically creating a new document, I would like my application to display an "Open..." dialog much like Xcode, TextEdit, and other Apple apps do. How do I go about implementing this? Is there a flag somewhere that I can set to show the dialog instead of a new document, or do I have to create an application delegate that shows the dialog upon launch? Thanks for your advice.

推荐答案

这将是自定义的行为.

在您的应用程序控制器中，覆盖

In your application controller override applicationShouldOpenUntitledFile: to prevent opening a blank document at startup, then display the file dialog.

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