如何添加“入口点箭头"?到标签栏控制器? [英] How to add an "entry point arrow" to a tab bar controller?

问题描述

在Xcode 6.2 beta中，我可以通过在界面上拖放入口点箭头"，使某些视图控制器(例如"View Controller"或"Navigation view controller")成为界面的入口点，像这样的东西:
但是，当我想在选项卡栏控制器上拖动此箭头时，它不起作用，是否是一个错误，还是应该以其他方式来实现?

In Xcode 6.2 beta, I am able to make some view controllers such as "View Controller" or "Navigation view controller" the entry point of my interface by dragging and dropping the "entry point arrow" on it, it gives me something like this :
But when I want to drag this arrow on a tab bar controller, it does not work, so is that a bug or should I do it in another way ?

推荐答案

尝试执行以下步骤.

1)打开StoryBoard.

2)选择要设置为RootViewController的TabbarController.

2) select TabbarControllerwhich you want to set as RootViewController.

3)打开Properties.

4)选择InitialView Controller选项.

要获取帮助，请参见以下image.

For help you can see following image.

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