引用 segue 源视图控制器 [英] Reference to the segue source view controller

问题描述

在我的 viewDidLoad 中，我想要一些基于前一个控制器的自定义代码.

Within my viewDidLoad I would like some custom code based upon the previous controller.

如何在目标控制器的 viewDidLoad 中访问 segue 源控制器或前一个 segue 标识符来处理此问题?

How can I access the segue source controller or the previous segue identifier in the destination controller's viewDidLoad to handle this?

推荐答案

没有办法获得对创建您的 segue 的引用.您可以在目标控制器中创建一个属性(在我的示例中为 sourceVC)，并在 prepareForSegue 方法(在源视图控制器中)中将 self 分配给该属性:

There is no way to get a reference to the segue that created you. You could create a property (sourceVC in my example) in the destination controller, and assign self to this property in the prepareForSegue method (in the source view controller):

[(DestinationVCClass *)segue.destinationViewController sourceVC] = self;

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