问题描述
使用Xcode和IOS编程在youtube上阅读教程。如何显示PlaceHolder窗口显示文件所有者。本教程将展示如何添加几个代理和数据源
Going though a tutorial on youtube with Xcode and IOS programming. How do you show the PlaceHolder Window showing the file owner. The tutorial is showing how to add a couple of delegates and data source
有关视觉效果，请参阅 at 2:55
For a visual see http://www.youtube.com/watch?v=IqDZHgI_s24 at 2:55
推荐答案
您可能只需要在XIB编辑器中单击隐藏/显示文档大纲按钮：
You may simply need to click the Hide/Show Document Outline button in the XIB editor:
请注意，文件所有者和第一响应者占位符是可访问的（如即使文档大纲被隐藏，也可以使用大型多维数据集图标。
Note that the File's Owner and First Responder placeholders are accessible (as the large cube icons) even when the document outline is hidden.
另一种可能性是您使用故事板创建了项目。故事板没有文件所有者占位符。如果发生这种情况，因为您正在工作时抛出一个初学者教程，您应该重新开始一个新项目，并确保取消选中新项目向导中的使用故事板复选框。
Another possibility is that you have created the project using a storyboard. A storyboard doesn't have the File's Owner placeholder. If that happened, since you are working throw a beginner tutorial, you should just start over with a new project and make sure you uncheck the "Use storyboards" checkbox in the new project wizard.
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